Xtrons PB7890BP - BMW E90 - Android Head-Units

Hello,
Not sure how common this unit is, but I'm just trying to gain some details about it. I bought it at the weekend, it arrived yesterday and I am keen to work out what is going on. Hopefully some of you experts can help.
1. The instruction manual states that I must connect the long yellow wire to the battery, which will preserve the memory for the clock and radio settings. However, I've seen this on XDA for a similar Eonon:
Settings
scroll down to factory settings
password:126
default power status; memory of last status
apply
exit
yes to reboot
Click to expand...
Click to collapse
Which essentially means all radio settings are written directly to the NAND. Why wouldn't this be enabled by default as surely it would remove all requirement for that power cable from the battery, unless that power cable is simply powering the clock? I'm wondering if using GPS time might be better for me, rather than spending an age finding a place for this cable to go. Thoughts? I will continue experimenting tonight.
2. So far, the unit has absolutely no problem connecting to my home Wi-Fi but simply won't connect to my S7 Edge Wi-Fi hotspot. Are there any tips to make this work? Perhaps it's something to do with 5GHz or something? I just need it to work with my phone otherwise it's kinda useless
3. This is probably specific to BMW E90 owners, where are you guys hiding your GPS antenna? Nobody really wants it on the dash do they as it looks nasty. I've been reading about places to hide it but some are ridiculous, like running new lines via the roof lining. Surely there's somewhere within the dash that has limited visibility of the sky, but just enough?
4. Steering controls work out of the box, but I am unable to actually set manual ones? Is there any trick to this?
Thanks in advance.

Looks like I'm going to be the crash test dummy for this unit then. So I'll give my thoughts so far:
Audio Quality - Good. Very good actually considering it's a cheap aftermarket jobby. I've not had one that wasn't a Kenwood or Pioneer sound this good. My Erisin was okay, but nothing on this. The Amplifier app (which is a really a glorified Equalizer) allows a fair amount of twiddling, and I used the optimum settings that I was given by a BMW expert and my word, it blows the OEM radio out the water. Great start.
Screen Quality - It is what it is. Its clearly not high def but then they don't claim to be. It's clear enough though and when navigating earlier I had no problem.
Touch Screen - Jury is still out. I've had a few occasions where taps wouldn't register, but you can never tell if its the CPU lagging or not. Other than that, it seems fine.
Wi-Fi - I was sceptical of how this would perform, as it's one of the biggest complaints on these forums. No problems so far though. Connected perfectly to my phone hotspot and I listened with pleasure to Spotify for a good half an hour.
Installation - Easy enough. There is a surprising amount of wiring though so you need to get a bit inventive to get it fully recessed into the dash.
Does it need the yellow wire to the battery or fuse box? Well, I'm not sure. I found the setting I spoke about above, and so far it does appear to be preserving settings correctly. The only thing that is lost is the clock so far, but the clock is automatically picked up from GPS, so it's possibly a none issue.
Bluetooth A2DP - Jury's out. I tried it with YouTube on my phone and felt it sounded a bit thin, but then music on YouTube always sounds a bit dull and lifeless I find. I really need to use Spotify, but then Spotify works well on the unit, so there's no point.............
Bluetooth Calls - Only made one. Positive feedback though. The person on the other end said it was clear and that's always good. My end, well it wasn't as good as my previous Kenwood, but it was clear enough.
Reversing Sensor Integration - Game changer. It's brilliant. I don't have the camera, and I really can't be arsed to fit one. It's a shame I can't disable the stupid triangle that appears informing you that no camera is present, because the unit displays a car with coloured sensors on the back and that's top draw. Very impressed.
I skipped out on the tyre pressure monitoring, but I've got the DAB antenna and hopefully a piece of kit that will make DAB work with my OEM aerial, coming all the way from Germany.
I now need to resolve a few issues with installation. I wanted to route the USB cables and what not to the glovebox, but how the hell I'm supposed to do that I am not sure. I will get onto a BM forum and find out. I will post some photos up when I'm finished. Also, you do have to file a bit of the climate control part, so it fits smooth. Currently, I've wedged it in without the surround but it looks a bit cruddy, so I will do that probably at the weekend.
Current unit issues I am trying to resolve:
- Cannot get the steering wheel app to work at all. The steering buttons work, perfectly fine, but the actual app itself does nothing, so I cannot configure the voice setting for example, to open OK Google.
- FM Radio is dreadful. It was never good to begin with, but it's horrific now.
- Making the previous audio source come back after a cold boot.

ok, so almost had my first snafu tonight. CANBUS integration was 90% broken. no reversing sensor functionality, other than the original beeps, and steering controls not working. I was all but ready to send a snotty e-mail to Xtrons, when I tried booting up the hardware, turning on the ignition, disconnecting the CANBUS box, and then reconnecting it. I think perhaps the car has a fail safe if it thinks something is not right with the CANBUS and just disables it. Disconnecting the CANBUS caused the unit to switch off, I then reconnected it and the unit instantly returned and importantly the clocks sync'd up.
I've noticed if the CANBUS isn't working, temperature and clocks are lost. Hopefully this won't be a recurring theme. I was messing about in factory settings earlier, so I don't want to throw any blame at Xtrons just yet.

OK, so it seems CANBUS Integration is broken when you switch the car off and then return to it after a few seconds/minutes. I am guessing this is because the unit immediately goes into sleep mode when you shutdown the car and the car doesn't like this. I can't be sure until I return to the car in a few hours as not all the subsystems power down immediately. I am going to experiment with setting the unit to power down after 10 minutes. I suppose it's about finding a happy balance. You don't want to drain your battery excessively, but you need to be able to pop into the shops without losing almost 100% of the canbus functionality.
The games continue. I will do some more research.

Right, another update. Returned to the car after an hour. Canbus working fine. Switched it off and on repeatedly and for some reason I couldn't break it. Was solid as a rock. God knows why it failed this morning then. Perhaps it's the unit rather than the car then I will keep an eye and nagg Xtrons if it's problematic going forward.
I've set the ACC delay to 10 minutes but it doesn't seem to make a difference. It still powers off :| I don't think it does it any favours it powering off though.

Another update. So, if you leave your car for a few minutes, the canbus goes dead and is nonoperational until the next time you leave it for a while . I've not timed it specifically, but it's definitely happening. Wonder if it's the car or the radio causing these problems?

I will eventually merge this all into a single reply which can form the basis of the thread for this device. I'm guessing the price is somewhat blocking it's widespread popularity. I must admit, it's not easy throwing 300+ quid at a Chinese head unit.
Anyway, another update on this Canbus issue. I think the problem is both the car and the head unit. The head unit is 'half' going into Deep Sleep when I switch the car off. It's not fully entering deep sleep. Hence when I get back in the car within a few minutes, the device is still 'powering down'. It then immediately wakes up and usually, canbus functionality is lost. I wonder if there's a command that's not being sent or something and the canbus then falls into a bad state. Once in this state, it's nearly impossible to get out of it. You just have to wait until the car is fully powered down (about 30-60 mins).
The only thing this could be, other than a software bug, is because I've not wired that yellow wire in. Now the guys at Xtrons said it's just for the memory and clock, but I've proven that you don't need that wire to store the memory and the clock can be updated via GPS. So, could it be that the yellow wire also acts as a secondary 'accessory' line? God knows. Before I start tearing my car apart to run wires or trying to access the fuse box to tap them, I will run it through the cabin and to the battery which sits in the boot. Sounds lethal and very dirty, but this to me is the simplest way of finding out what the crack is.

Bingo. I've potentially found the fix/hack for CANBUS bugs and it might not require the yellow wire to be connected. I think the issues are probably caused by not connecting up that wire, but doing so is a bit of a pain. I'll need to route it to the fusebox or battery etc. blah blah. I'll maybe try for academic reasons at the weekend.
It definitely is the unit rather than the car I think. It appears to trigger some kind of 'bad state' when you switch off the ignition. What I have observed is that the unit never quite reaches deep sleep, you then enter the car a few minutes later and the unit is essentially half powered down, at which point it continues into deep sleep then immediately 'unsleeps'. At this point, all canbus integration has been lost, SWC, PDC, all dead. I think perhaps because it's continuing to enter deep sleep when you re-trigger the ignition, it is effectively powering down the canbus subsystem. This is then dead for the next hour unless the unit will power it back on, which is surprisingly awkward.
So...... the fix/hack, at least, so far, is to set Shutdown Delay when ACC OFF to 30 seconds, rather than Auto Sleep. The auto sleep mode never fully powers down the unit and that is the whole point I guess. If you set it to 30 seconds, the unit continues to power down after you've left the vehicle and perhaps it continues the correct shutdown of the canbus system. When you re-enter and trigger the ignition, it then powers it up again properly, or so it would seem anyway. One thing I will say, in auto sleep, if you don't fully engage the ignition, this also caused issues. With it powered down, I think the unit will not come back on until ignition is at least in accessory mode, so hopefully that problem is also gone.
The ONLY negative of this fix, is the fact that the unit boots from cold every time you start the car. Booting takes, I don't know 20-30 seconds ish? Not ideal, I'll admit, but it's definitely better than losing all CANBUS integration and not being able to operate steering controls and having your parking sensors work correctly. They're important after all.
I will test, as I say, for academic reasons at the weekend and if it does work, maybe the ends justify the means, but only if I can get the wire into the bloody fusebox

Skeeza,
Thanks for posting and tracking all of your work. I have the PE9890BPL (9in screen, no cd/dvd) and have been encountering some of the same issues as you. I do believe there are issues with the CANBUS integration as I have multiple issues associated with this harness. More than 75% (installed 2 days ago so 3/4 trips) of the time I have no steering wheel controls and the unit does not link (time and temp) to the center console. I do have the yellow wire connected in my fuse box but I just discovered that the fuse I tapped into may not be always on. I found a fuse that is reportedly always on listed on XDA so I swapped it and I will report if that does/does not correct my issue.
My time also does not display correctly. I do not have it connected to 4G/LTE and I would prefer not to if I do not have to, but I will. I manually set the time and it still loses it. The radio presets have also disappeared once. Perhaps swapping the yellow wire will correct this as well.
Finally I agree that music via bluetooth is "thin." Volume is very different than the FM radio and there is no base.

FYI I just received an email back from Xtrons about my intermittent CANBUS. They didn't ask any questions about installation or suggest any firmware changes, just said they would send me a new one.

jerkeife said:
Skeeza,
Thanks for posting and tracking all of your work. I have the PE9890BPL (9in screen, no cd/dvd) and have been encountering some of the same issues as you. I do believe there are issues with the CANBUS integration as I have multiple issues associated with this harness. More than 75% (installed 2 days ago so 3/4 trips) of the time I have no steering wheel controls and the unit does not link (time and temp) to the center console. I do have the yellow wire connected in my fuse box but I just discovered that the fuse I tapped into may not be always on. I found a fuse that is reportedly always on listed on XDA so I swapped it and I will report if that does/does not correct my issue.
My time also does not display correctly. I do not have it connected to 4G/LTE and I would prefer not to if I do not have to, but I will. I manually set the time and it still loses it. The radio presets have also disappeared once. Perhaps swapping the yellow wire will correct this as well.
Finally I agree that music via bluetooth is "thin." Volume is very different than the FM radio and there is no base.
Click to expand...
Click to collapse
Finally, nice to have a friend on this forum with the same unit I was starting to think I was the only person who had ordered it. Essentially we have the same unit, mine has the smaller screen + drive, yours has the bigger screen and no drive, like you said. Internally, they're essentially identical. Interesting you mention about the yellow wire perhaps not being connected. I think this is what we both need to resolve, and how important it is.
Let me know how you get on. I plan on running it through the cabin direct to the battery today as an experiment, but this isn't anything long term, merely an experiment. Realistically, I'll need to do this properly or not at all. I notice all of the same problems as you though. Temperature invisible, clock wrong, steering wheel controls, broken park distance controls too (you've maybe not spotted that). I installed mine Monday, so I'm equally a novice. Which fuse are you planning on using? I've been on the BMW forum, and it seems that finding one that is constantly live is a bit of a minefield. I figured the most obvious one is central locking, or maybe ECU ? Central locking would be preferred. It's a non critical system after all.
http://fusesdiagram.com/bmw/fuse-box-diagram-bmw-3-e90.html
Potentially this shines some light on it. Is yours an E90? Mines an 2007 E90. Fuse 56 and 57 are central locking, 15amps. I will check if they correspond to that tonight and if so, they will be the ones I use for my tap.
Good to hear I'm not the only one with the CANBUS issue. I am hoping we both resolve it by connecting up that yellow wire. Like I said, only one way to find out I did have a micro fuse tap somewhere for my previous motor, but I can't find it now, so I'll order another.
The immediate hack/fix for CANBUS is to set Shutdown Delay when ACC OFF to 30 seconds, rather than Auto Sleep. Trust me, it'll work 100% of the time after, but it will also boot from cold after. I think that's the problem. It's not shutting down correctly, quite possibly because of that yellow wire.
What do you think so far? I'm pretty impressed with everything else. Did you have to file down the climate control to fit it in?

skezza said:
Finally, nice to have a friend on this forum with the same unit I was starting to think I was the only person who had ordered it. Essentially we have the same unit, mine has the smaller screen + drive, yours has the bigger screen and no drive, like you said. Internally, they're essentially identical. Interesting you mention about the yellow wire perhaps not being connected. I think this is what we both need to resolve, and how important it is.
Let me know how you get on. I plan on running it through the cabin direct to the battery today as an experiment, but this isn't anything long term, merely an experiment. Realistically, I'll need to do this properly or not at all. I notice all of the same problems as you though. Temperature invisible, clock wrong, steering wheel controls, broken park distance controls too (you've maybe not spotted that). I installed mine Monday, so I'm equally a novice. Which fuse are you planning on using? I've been on the BMW forum, and it seems that finding one that is constantly live is a bit of a minefield. I figured the most obvious one is central locking, or maybe ECU ? Central locking would be preferred. It's a non critical system after all.
http://fusesdiagram.com/bmw/fuse-box-diagram-bmw-3-e90.html
Potentially this shines some light on it. Is yours an E90? Mines an 2007 E90. Fuse 56 and 57 are central locking, 15amps. I will check if they correspond to that tonight and if so, they will be the ones I use for my tap.
Good to hear I'm not the only one with the CANBUS issue. I am hoping we both resolve it by connecting up that yellow wire. Like I said, only one way to find out I did have a micro fuse tap somewhere for my previous motor, but I can't find it now, so I'll order another.
The immediate hack/fix for CANBUS is to set Shutdown Delay when ACC OFF to 30 seconds, rather than Auto Sleep. Trust me, it'll work 100% of the time after, but it will also boot from cold after. I think that's the problem. It's not shutting down correctly, quite possibly because of that yellow wire.
What do you think so far? I'm pretty impressed with everything else. Did you have to file down the climate control to fit it in?
Click to expand...
Click to collapse
I have an 08 e90. I was initially tapped into fuse 57 as specified on what you posted (56 and 57 are central locking fuses on my car's fuse diagram) but found that the radio would intermittently start up for a few seconds when I would unlock the doors. When I got to work this morning I switched to fuse 47 as shown on what you posted (fuse 2 on my car's diagram) based on a post I found on Bimmerpost but I did not get a chance to test that fuse location. I could go hook up my DMM to it and check after work to see if it is still powered. Both drives I took at lunch today the radio presets and clock have not been stored but my CANBUS seemed to be functioning properly. I think the yellow wire is used for more than just retaining presets and time. Where is the Shutdown Delay? I keep seeing a mention of a Factory Settings menu but I have been unable to find it.
I do like the radio and as long as we can iron out these few issues I will be happy. The previous Xtrons I owned had a horrible bluetooth echo for anyone who was talking to me while I used the radios function. So bad that my wife would not even talk to me unless I disconnected, which made it a show stopper for me and I returned the unit. I did have to file down the climate control to get it installed but the bottom sticking down farther bothers me less than I thought it would.

Shutdown delay is under Extra settings. It'll be set to Auto sleep by default, which essentially prevents the unit from shutting down. Set it to 30 seconds and you'll be laughing, except you'll be a tad annoyed because everytime you start the car, your head unit will reboot, but canbus will work 100% of the time. I believe the auto sleep could be one of the reasons we're having issues. I think the unit isn't powering itself down properly and then perhaps the canbus integration app is crashing? Would need to debug, but really, this is what they should be doing, not us.
Early signs are not positive with the yellow wire. I went out and ran the yellow accessory wire all the way to the battery. No idea if anything has changed functionally on the unit, but after re-enabling auto sleep, I was able to get the canbus to fail again fairly quickly. They've offered me a new canbus box as well, so I might take them up on that. I'm leaving the car for an hour or so now. I've disabled writing presets to memory so I can be sure the permanent live is working. It should be, I've run it direct to the battery, but there's a join in the middle and perhaps I accidentally disconnected it, we'll see..... in an hour Did you lose your FM Presets then? That's the first place I'll go then to be sure.
Frustrating.
How much did you file off? I'm looking at my climate control and I'm working out where to start. There's a plastic clip which goes into the metal bracket included with the unit. I assume we leave that but you file all the obscured plastic that surrounds it?

Bad news, wired in the yellow wire and disabled the writing the memory to NAND storage. Tested it by removing the wire, all presets lost, reconnected it and they were stored. Left for an hour, canbus working fine. 5 minutes? No, the canbus is completely broken..... the issue is definitely related to the headset powering down when you open the door and I think it's triggering the canbus on the car to deactivate. I've recorded the symptoms and will forward it to Xtrons. It's a combination of the two. Once the canbus is powered down, even having the 30 second ACC fix won't bring it back. You must wait for an hour until the car shuts down all the other subsystems. I think the reason it works with the 30 second ACC fix is because it's like a sequence, off, on, off, on etc.
In the meantime, I will request the new canbus box as they've offered. Did they ask you to return yours? They've not said to me yet, better not be back to China though. More frustratingly, this unit doesn't even work without the canbus box..... I don't think anyway.
Ultimately, if this doesn't work, you have to ask yourself what's more important...... the functionality this unit brings (which is plentiful) or the ability to boot it in 1 second. Personally, the functionality outweighs being able to boot in 1 second. It's just a shame we can't figure out what the **** is going wrong with it. Can I live with 20 second boots? Probably to be fair.

https://www.youtube.com/watch?v=etgYOHwAe04
Video of the canbus failing.

I just got this unit and installed today. I also have canbus issues. I am going to try a second canbus unit from my old android head unit I have to see if it helps at all. I think most of this is software though, as my previous android 6.0 unit px5 had none of these issues. Didn't connect the yellow wire and it never lost memory.
Ill keep you updated on my findings as well.

erronr said:
I just got this unit and installed today. I also have canbus issues. I am going to try a second canbus unit from my old android head unit I have to see if it helps at all. I think most of this is software though, as my previous android 6.0 unit px5 had none of these issues. Didn't connect the yellow wire and it never lost memory.
Ill keep you updated on my findings as well.
Click to expand...
Click to collapse
I believe it is software too. I think the car is reacting to something that the unit is doing. Like I said, with it on 30 second shutdown, CANBUS works everytime. I've been sent a return address and will return the canbus box tomorrow. It has to be worth a punt, but I'm pretty sure without it, the unit won't function at all, which isn't ideal, although perhaps if I go into factory settings and disable canbus it will? If not, it becomes a £300 paperweight for a few days, but there we go. Need to at least give it a try, don't I?
I wonder if it's a problem with the MCU, perhaps it's shutting down a critical piece of software? Ultimately, the MCU is what handles canbus right?
Do you experience the symptoms in the video above?

skezza said:
Shutdown delay is under Extra settings. It'll be set to Auto sleep by default, which essentially prevents the unit from shutting down. Set it to 30 seconds and you'll be laughing, except you'll be a tad annoyed because everytime you start the car, your head unit will reboot, but canbus will work 100% of the time. I believe the auto sleep could be one of the reasons we're having issues. I think the unit isn't powering itself down properly and then perhaps the canbus integration app is crashing? Would need to debug, but really, this is what they should be doing, not us.
Early signs are not positive with the yellow wire. I went out and ran the yellow accessory wire all the way to the battery. No idea if anything has changed functionally on the unit, but after re-enabling auto sleep, I was able to get the canbus to fail again fairly quickly. They've offered me a new canbus box as well, so I might take them up on that. I'm leaving the car for an hour or so now. I've disabled writing presets to memory so I can be sure the permanent live is working. It should be, I've run it direct to the battery, but there's a join in the middle and perhaps I accidentally disconnected it, we'll see..... in an hour Did you lose your FM Presets then? That's the first place I'll go then to be sure.
Frustrating.
How much did you file off? I'm looking at my climate control and I'm working out where to start. There's a plastic clip which goes into the metal bracket included with the unit. I assume we leave that but you file all the obscured plastic that surrounds it?
Click to expand...
Click to collapse
I'll try and take a picture of it tonight showing how much of the tabs I filed off. I did not want to completely remove them in case things didn't work out again.
skezza said:
Bad news, wired in the yellow wire and disabled the writing the memory to NAND storage. Tested it by removing the wire, all presets lost, reconnected it and they were stored. Left for an hour, canbus working fine. 5 minutes? No, the canbus is completely broken..... the issue is definitely related to the headset powering down when you open the door and I think it's triggering the canbus on the car to deactivate. I've recorded the symptoms and will forward it to Xtrons. It's a combination of the two. Once the canbus is powered down, even having the 30 second ACC fix won't bring it back. You must wait for an hour until the car shuts down all the other subsystems. I think the reason it works with the 30 second ACC fix is because it's like a sequence, off, on, off, on etc.
In the meantime, I will request the new canbus box as they've offered. Did they ask you to return yours? They've not said to me yet, better not be back to China though. More frustratingly, this unit doesn't even work without the canbus box..... I don't think anyway.
Ultimately, if this doesn't work, you have to ask yourself what's more important...... the functionality this unit brings (which is plentiful) or the ability to boot it in 1 second. Personally, the functionality outweighs being able to boot in 1 second. It's just a shame we can't figure out what the **** is going wrong with it. Can I live with 20 second boots? Probably to be fair.
Click to expand...
Click to collapse
They sent me an RMA to return my old canbus. I've requested they send me the new one first so I can still use the radio; no response yet. I attempted the off after 30 seconds but it did not work for me. If what you've worked out is correct, whatever is causing my unit to briefly power up and then shut down when I open the door is killing my steering wheel controls. I left the off after 30 seconds on but I need the radio to not turn on when I unlock/open the door for me to test it. Or I supposed I could just sit in the car for a minute. I don't know what I didn't just try that...
Edit: Tried it twice...so far it worked both times.
erronr said:
I just got this unit and installed today. I also have canbus issues. I am going to try a second canbus unit from my old android head unit I have to see if it helps at all. I think most of this is software though, as my previous android 6.0 unit px5 had none of these issues. Didn't connect the yellow wire and it never lost memory.
Ill keep you updated on my findings as well.
Click to expand...
Click to collapse
There is a post here that mentions changing which car is specified for the canbus integration. I found that setting when I finally found the factor settings/car settings. I may try all that say BMW on them (which is 24, 89, and 99) just for ***** and giggles.
https://forum.xda-developers.com/an...d-units/canbus-decoders-manufacturer-t3670266

jerkeife said:
I'll try and take a picture of it tonight showing how much of the...................
Click to expand...
Click to collapse
I'm happy to file down the tabs, but yeah, like you said, the unit really needs to be working before I start making wholesale irreversible changes. At least a new climate control unit is only £49 off eBay. Could be worse.
They've sent me an RMA too and offered to pay for postage; like you though, I'll end up potentially having no radio while they fiddle and piss around for a few days. I don't think the radio works properly (or even at all) without the canbus box either. If it works partially, I can live without it, but I really don't want to be driving around for a week while they fanny about sourcing a new canbus decoder for me. I'd need to look though which I'll do tonight or early tomorrow morning. I'll update once I know. If it does work, I will get it posted tomorrow so I can get a new one back next week. I wouldn't be surprised if it doesn't fix it though.
The other option is I could rip it out completely and put the OEM one in loose or partially re-fit it, but hardly ideal is it? I never had these problems with Erisin Mind you, that had no canbus at all
Did you watch the video I recorded? The fact, your description sounds exactly the same as mine, means I'm pretty sure our problems are the same. Are you a UK customer as well? Be interesting to see how quickly they operate.
The 30 second ACC fix should work, assuming your canbus hasn't bugged out already!! It's really really important to note that. Once you've bugged your CANBUS, it's done. Dead..... and it'll be dead for half an hour to an hour or so regardless of this setting. I'm not uber clued up on the car, but I found an article discussing BMW canbus and aftermarket radios and essentially, there's some kind of lockdown system. If any kind of discrepancy is detected, the canbus circuitry for the radio is shutdown. So with that in mind, I think the car detects the unit powering down, but the unit should be powering up as the door has just been opened. This then puts the car into a fail-safe and canbus into a shutdown mode. You could disconnect the battery for a quick answer, I suppose, but no point. Just wait an hour or so. Then you'll have working canbus everytime you enter the vehicle, assuming you have that 30 second mode activated.
This isn't a fix though is it? This is simply booting the radio from cold everytime you enter the car and that really shouldn't be necessary. It was one of the selling points of this particular piece of equipment.
I will try those settings tonight/tomorrow before sending it back. Has to be worth a try.

skezza said:
I believe it is software too. I think the car is reacting to something that the unit is doing. Like I said, with it on 30 second shutdown, CANBUS works everytime. I've been sent a return address and will return the canbus box tomorrow. It has to be worth a punt, but I'm pretty sure without it, the unit won't function at all, which isn't ideal, although perhaps if I go into factory settings and disable canbus it will? If not, it becomes a £300 paperweight for a few days, but there we go. Need to at least give it a try, don't I?
I wonder if it's a problem with the MCU, perhaps it's shutting down a critical piece of software? Ultimately, the MCU is what handles canbus right?
Do you experience the symptoms in the video above?
Click to expand...
Click to collapse
I have used the unit with the canbus disabled. The radio worked, that is all I tested. I was trying to figure out why my canbus stopped before reading this post.
As of now, I don't have the 30 second thing selected and since swapping my canbus to my old one ive kept canbus working. That being said, I havent done a quick turn off/turn on. I will try that shortly.

Related

New Witson Head Unit/ Minor Frustrations

My new head unit arrived the other day. Ordered it from AliExpress and it took less than a week to get here. I sought out a replacement because my previous Android head unit (Eonon GA5153) was having issues. It performed great for just over a year without any issues. A couple weeks ago my car battery started draining and I couldn't figure out why. It wasn't until I went to grab something out of my car at night that I realized the lights around the unit were still illuminated. Not only that but the fan was still going. I searched thread after thread and I couldn't seem to find an answer other than installing a toggle switch on the accessory wire. I found the Witson 9 inch unit for $245.00 and decided to give it a shot. After unboxing and wiring everything up I realized that the radio trim wouldn't go on because the edges were somewhat squared off in the back of the unit. It clearly isn't a perfect fit for my vehicle (2008 VW R32) but I wasn't going to let a small problem like some square edges prevent me from enjoying a new head unit...that and sending it back to China. I pulled out the old Dremel and used a sanding attachment at low speed and fixed the problem in less than 5 minutes. The unit looks great. Fits just as well as the Eonon did. The only issues Ive had thus far involve the unit not remembering certain things when its shut down. The LOUD beep that occurs with every touch has to be shut off every time I start the car. The radio starts up every time the car is started as well and doesn't save any of the pre-sets. The adjustments to the equalizer wont save either. If anyone could help me out with these issues Id greatly appreciate it! Thanks!
TicketToKickIt said:
My new head unit arrived the other day. Ordered it from AliExpress and it took less than a week to get here. I sought out a replacement because my previous Android head unit (Eonon GA5153) was having issues. It performed great for just over a year without any issues. A couple weeks ago my car battery started draining and I couldn't figure out why. It wasn't until I went to grab something out of my car at night that I realized the lights around the unit were still illuminated. Not only that but the fan was still going. I searched thread after thread and I couldn't seem to find an answer other than installing a toggle switch on the accessory wire. I found the Witson 9 inch unit for $245.00 and decided to give it a shot. After unboxing and wiring everything up I realized that the radio trim wouldn't go on because the edges were somewhat squared off in the back of the unit. It clearly isn't a perfect fit for my vehicle (2008 VW R32) but I wasn't going to let a small problem like some square edges prevent me from enjoying a new head unit...that and sending it back to China. I pulled out the old Dremel and used a sanding attachment at low speed and fixed the problem in less than 5 minutes. The unit looks great. Fits just as well as the Eonon did. The only issues Ive had thus far involve the unit not remembering certain things when its shut down. The LOUD beep that occurs with every touch has to be shut off every time I start the car. The radio starts up every time the car is started as well and doesn't save any of the pre-sets. The adjustments to the equalizer wont save either. If anyone could help me out with these issues Id greatly appreciate it! Thanks!
Click to expand...
Click to collapse
It seems like you have swapped red and yellow cables. Yellow should be always on +12 volt. Red is controlled via ACC, i.e. on when your starter switch
is in acc or running it supplies +12 volt. The yellow, always on, keeps the memory powered. i.e. radio stations are saved and so on.
[dormancy setting] - DORMANCY IF CUT ACC --> ON If you select a hidden setting to radio sleep after cutting off ACC,do not turn off the radio will remember your settings. It will be up to speed will execute and will not beeps when touching.

Atoto A6, my thoughts / review

Mirrored from my Amazon review on this unit:
Here are all of the pieces we purchased with the A62721PB 2G/32G, in order to install in our 2006 Dodge Ram 1500 truck. Install is still not complete, but I'll get to that in a bit.
(associate links removed for spam filter)
As you can see, its an ordeal to install this unit. Even the manufacturer doesn't seem to understand the vehicles it will be installed in, in our case, a 06 Ram 1500. Standard Chrysler wiring (would be the same for almost any 06 Dodge, Chrysler, Jeep... etc) telling me to tap into the -5v canbus wiring as the accessory switch. To properly install this in those vehicles, you need a CanBus adapter, which will give you the ability to turn to ACC and run the unit, and allow it to dim with the interior lighting. Neither of those are done in a 12v switched wire in these vehicles. Oh, and you will need an antenna adapter too... both of these I have yet to buy . If you have more than basic radio functions in your vehicle, you need a better install kit. Basic wiring wont cut it to do the job right.
As it is, I used a tap to the ignition switch (+12v) to turn the unit on until I have a few bucks to pick up a proper install. So think of all of that when buying. To get all the functions, you need more parts, so a $300 radio turns into a $500 radio quick.
OK.. Use. Most of my use is with Google Maps, Amazon Music (offline) or the backup cam. Getting those or any software setup with large downloads was a pain, as this unit shuts off the wifi with the key, so no updates while you sleep, and no way to turn that functionality on. Unless you leave your keys in the vehicle (not the best choice). And with the sub-par performance of the wifi in this unit, its going to take a while. I can see my home wifi all over my property with our phones. The truck only seems to see my neighbor's connection. The antenna is mounted under the black part of the windshield trim, just out of view. In fact, the only good reception I've gotten is with a portable hotspot in the truck. The A6 also cannot seem to see our 5gHz channels. These seem to be built to the same standards as generic 2010 tablets.
The built in pairing is useless. It just shares the screen image with the head unit. No controls, no passthrough... just video. If I wanted to use my phone I would have stuck to the ram mount. PDA-Net is the only way I've been able to connect, as my phone plan doesn't include wifi hotspot.
Speaking of phone hookup and this unity, you can share data (like PDA. net) or use fast charge. not both? And those USB leads really should come with some sort of bracket and template for in-dash installation. We plan on making these, but really, it would be a lot nicer to have it come with. Right now, they just fall out of the bottom of the dash like an afterthought.
Additionally, we negated to install the microphone. Most times people can hear you fine. If not, you have to re-boot the system. You also have to reboot when it wont pause music when a call comes in, or lower sound when the rear camera activates.
-Side note about that pause... most sub $30 bluetooth adapters resume your media when you start the vehicle back up. not this one.. you got to hush the FM software, navigate back to your music (Amazon music in our case) and then hit play. Since there is no play button on the factory remote, its a real pain in the backside. Not well thought out Atoto. -
Reverse cam is basic, we bought the matching ATOTO one and the quality is garbage. Looking for a better unit now. Nice that it just lowers the music while backing up, and doesn't cut out though.
I haven't tried to install a better home screen or layout in this unit. It would help to have a bit more open framework. The colors and designs are bland and garish at the same time (congrats on that hot mess Atoto) with no support for changing them.
The best looking interface and use so far has been Torque, which we have the pro version of, and has been useful to see a few tuning parameters as well as info for towing. We bought a generic ODB2 dongle and it works fine. The downside is the built in browser for looking up a trouble code that came from blowing out our dash lighting during install (dumb grounding mistake, should have known better and pulled the battery leads. ) No support for acceleration sensors though, seems the A6 does not have them. So if you want this for your autocross car, maybe skip it and just use a used Samsung Tab or something.
Im going to look into re-flashing the headunit after we button up the install with a better ROM, better apps, and hope I can find a good dashcam utility that works for this. CarWebGuru works at first, but then on re-boot will disable all sound, cameras, and the remote if left as the launcher. If not, it still works, but is kindof redundant.
overall, its a project. Take a full day to get it all installed, maybe longer to dial it in right.
Overall, so far, we spent a total of $368.17, and will be spending at least another $80 on this unit. I guess that is the name of the game when you want to do things right, and not spend $800+ on a turnkey system.
I also discovered that Prey security will install, but not open on this unit. Thought it would be nice to have a bit of additional theft protection int eh truck and the ability to track it if it did get stolen.
. I recently bought the a6 and had to learn the hard way also. I'm installing in a 13 Dodge Durango.
Majority of the extra cost would come with any new aftermarket unit since newer vehicles need to communicate with the can us system. I went in also thinking I could buy the cheap harness and be good to go. Majority of the Chinese headunits are made for international vehicles. . Most are plug and play.
I got on lightning deal for $200 and so far about $100 in parts. But I expect this with any aftermarket radio I install. Days of cheap harness and dash kit are over.
But anything is worth the cost vs my stock radio.
Just like any Chinese product(coming from Android TV boxes) they take a lot of tinkering but that comes with the cheap price. I plan on 8nstalling one of the car launchers and replacing every non essetnial app.
Power amp or gmmp for music. So with my limited testing, I've had a good experience. I'm within 20ft of my router at home so speeds been great. Bluetooth has been Rock solid also with media.
Will post more on Sunday when I complete the install.
Right on. I didnt have the cash to buy one from some place thats worked out more bugs. I have industry friends that sell a unit that retails at $800, adn I could get it wholesale, but thats still a chunk more cash than I had.
Got my wifi a bit better sorted this afternoon by putting a repeater out in my little tool shed, and finally have 75% of the tomtomgo USA map downloaded. This unit nor that app are good at downloading. I also noticed something about Car Web Guru on startup... if the factory launcher does not have default access, not only will certain things stop working (cameras, sound, USB), but it screws with the clock, which then throws off other apps that use the clock as part of any sort of key. Amazon does this with offline music, which I have a lot of on here.
TeamADW said:
Right on. I didnt have the cash to buy one from some place thats worked out more bugs. I have industry friends that sell a unit that retails at $800, adn I could get it wholesale, but thats still a chunk more cash than I had.
Got my wifi a bit better sorted this afternoon by putting a repeater out in my little tool shed, and finally have 75% of the tomtomgo USA map downloaded. This unit nor that app are good at downloading. I also noticed something about Car Web Guru on startup... if the factory launcher does not have default access, not only will certain things stop working (cameras, sound, USB), but it screws with the clock, which then throws off other apps that use the clock as part of any sort of key. Amazon does this with offline music, which I have a lot of on here.
Click to expand...
Click to collapse
I don't believe these stereos are any different from one another. I've read about changing launchers breaking things. Luckily I believe there is a fix out there.
Probably try emailing them for possible fix..
I still need the steering wheel module but thats something I'll do in future upgrade
intruda119 said:
I don't believe these stereos are any different from one another. I've read about changing launchers breaking things. Luckily I believe there is a fix out there.
Probably try emailing them for possible fix..
I still need the steering wheel module but thats something I'll do in future upgrade
Click to expand...
Click to collapse
I have emailed them, but the language barrier is strong here. Talked about changing the launcher, and they told me it is not possible, but I am willing to try more now that I have a few more tools at hand.
Just curious, if your vehicle doesn't have a 12v acc, is there a 12v power outlet /cig lighter (or anything else) that is controlled by the key. You could use any 12v that is controlled by the key and tie it the unit acc.
stabone00 said:
Just curious, if your vehicle doesn't have a 12v acc, is there a 12v power outlet /cig lighter (or anything else) that is controlled by the key. You could use any 12v that is controlled by the key and tie it the unit acc.
Click to expand...
Click to collapse
What vehicle do you have?
If nothing is there under the radio dash, you can tap into the fuse box.
Wont work. 12v+ ACC is controlled by the bus. With the key off, the cigar lighter ports are still charged with 8-10v, which the unit sees as an on trigger.
In order to get around this, you need a canbus controller, which is available from a few companies.
intruda119 said:
What vehicle do you have?
If nothing is there under the radio dash, you can tap into the fuse box.
Click to expand...
Click to collapse
I agree, fuse box would be your best bet. Aside from just the key switch, you could probably find a delayed off or open door off. If not, you just need to find a circuit activated by the key, could be any voltage made or ground made. Relays are cheap.
stabone00 said:
I agree, fuse box would be your best bet. Aside from just the key switch, you could probably find a delayed off or open door off. If not, you just need to find a circuit activated by the key, could be any voltage made or ground made. Relays are cheap.
Click to expand...
Click to collapse
Yeah need to know what type of vehicle it is.
Sent from my SM-N950U using Tapatalk
Any body get Waze working?
Unit can't find position/gps
Why would I do that in this truck with a relay and aux fuse panel, when I can control th dimming and ACC on via the canbus and an appropriate interface? Ive dealt with a lot of vehicle electronics (its part of my job) and going around a proven modern system with a bunch of jankey wiring just looks bad, especially in this case where it isnt needed.
In our Jeep Cherokee, maybe, but that also has things liek additional trailer wiring and radio equipment going in, as well as separate harnesses for the lighting to overcome stock deficiencies, but the Ram is pretty solid. Atoto says they have a built in canbus interface coming, just not there yet.
TeamADW said:
Why would I do that in this truck with a relay and aux fuse panel, when I can control th dimming and ACC on via the canbus and an appropriate interface? Ive dealt with a lot of vehicle electronics (its part of my job) and going around a proven modern system with a bunch of jankey wiring just looks bad, especially in this case where it isnt needed.
In our Jeep Cherokee, maybe, but that also has things liek additional trailer wiring and radio equipment going in, as well as separate harnesses for the lighting to overcome stock deficiencies, but the Ram is pretty solid. Atoto says they have a built in canbus interface coming, just not there yet.
Click to expand...
Click to collapse
Yeah why would you do that?
Our last few post was towards the guy asking about it. We can only assume he has an older vehicle.
intruda119 said:
Yeah why would you do that?
Our last few post was towards the guy asking about it. We can only assume he has an older vehicle.
Click to expand...
Click to collapse
Ah, my bad. Yeah, if you have an older vehicle, you could do a relay setup for ACC, but normally thats just a stop on the key, at least back to the 70s.
My thoughts.
Built in amp is 10x better than the stock one.
Very little lag when operating the unit. Lags a bit when streaming and downloading at same time.
Plays all types of media.
Screen is great. Easily used with sunlight shining through(sun roof)
Dims at night time correctly.
2sec boot is amazing.
Presistent app permissions notification drives me nuts.
App installs take forever(download is fast as the connection)
3ven thought 99% of time I'm listening to Google play or off HDD would be nice to limit volume when turning on car when fm radio auto starts.
Everything outside of my noobnesw and lots of user error has been plug and play. What's taking me 2 weeks so far would probably take experienced person 1hr or less.
I took apart the unit and can't understand why these units are bigger than name brand headunits. There is nothing in them but space.
Sent from my SM-N950U using Tapatalk
The screen is very nice. Boot time is more like time to pop the screen on, like when you hit the power button on your phone after its been in your pocket on standy. The real boot time takes forever (why is this microwave so slow!!!!1)
Mine keeps having issues with SD cards. have had it randomly say its corrupted, pull it out, reinsert, and all good. Just odd I think . And I finally found a good GPS app for this one, since it has enough space, the TomTom app is perfect. At least for my uses, even with having to pay for a month when using it for longer distances.
My biggest issue other than the few mentioned already in this thread, is the lack of speaker settings. There isn't enough options for speaker fine tuning, and as a result I can't get my speakers to sound good at all without massive distortion and clipping. Anyone know if there's a solution for this?
XDApurp said:
My biggest issue other than the few mentioned already in this thread, is the lack of speaker settings. There isn't enough options for speaker fine tuning, and as a result I can't get my speakers to sound good at all without massive distortion and clipping. Anyone know if there's a solution for this?
Click to expand...
Click to collapse
Best I can think of would be through a different amplifier than the built in one. Best luck I have had is with the "natural" setting. Its all software based, I found that it stops working and needs rebooted to get the profile back. Im betting thats a driver issue, and one we wont see updated in the A6.
You guys do know the trick about hitting BACK when the FM tuner comes up, then selecting the Atoto AUX and hitting HOME (leaving it in memory) to prevent the auto-start of FM and getting blasted out of the cab, right?
With the AUX trick, CarWebGuru (or other launchers) will autostart just fine. Every now and then (especially after a long power-off, like a day or two) you might have to repeat the trick, and more often, you'll need to manually start AUX if things like steering wheel controls or the Atoto equalizer isn't working after a restart (Aux or FM will force a restart of the MCU hardware).

[Solved][XRC PX5 Oreo] Wifi & bluetooth sometimes not working when waking up.

Hi,
There's an issue that has been mildly bugging me since I have had my Android Head Unit. Just wondering if I'm the only one or if this is a known issue.
Sometime when starting the car and the Head Unit powers up, the bluetooth and Wifi radios are not working. My phone cannot connect via bluetooth and the Wifi activation slider in the Wifi Setting menu will not move to the "activated" position.
Usually, a full system restart fixes the issue but I've had occurence where a second reboot in a row is necessary!
This has been going since I have had the unit. I didn't stay on stock ROM for long as I moved to Malaysk first and now using Hal9k ROM. Both ROMs exhibit the same issue. Point is I don't know if the stock ROM had this issue.
Head Unit is equipped with a MD725 version 1 radio module.
Does somebody have a workaround (other than rebooting)?
Thanks!
EDIT: Please check this post for a detailed explanation of the cause of the problem, the resolution process and finally provides fixes for it.
psyko_chewbacca said:
Hi,
There's an issue that has been mildly bugging me since I have had my Android Head Unit. Just wondering if I'm the only one or if this is a known issue.
Sometime when starting the car and the Head Unit powers up, the bluetooth and Wifi radios are not working. My phone cannot connect via bluetooth and the Wifi activation slider in the Wifi Setting menu will not move to the "activated" position.
Usually, a full system restart fixes the issue but I've had occurence where a second reboot in a row is necessary!
This has been going since I have had the unit. I didn't stay on stock ROM for long as I moved to Malaysk first and now using Hal9k ROM. Both ROMs exhibit the same issue. Point is I don't know if the stock ROM had this issue.
Head Unit is equipped with a MD725 version 1 radio module.
Does somebody have a workaround (other than rebooting)?
Thanks!
Click to expand...
Click to collapse
How disappointing to see that no one has replied. I purchased a Seicane unit from an Amazon seller two weeks ago, and among the things I noticed immediately was the frequent, seemingly random WIFI/BT disconnect. As you described, it happens when waking up. Either pressing the reset button or holding the power button for >5 seconds has returned their functionality every time (so far). But, in corresponding with Seicane, they act like it's the first time they've heard of it. They want to replace the WIFI module. But, I'm sure that'll take weeks, and by the time it gets here, I'm outside the return window with Amazon.
I'm fully stock, and I really like the fit and finish in my Tundra.
Can I thread-jack and ask you some questions to see if you have other issues like me?
- Google account sync is missing calendar (and chrome too, for that matter). That means any calendar app (stock or 3rd party) cannot access events. Do you see calendar under settings/accounts/google/sync?
- Side-loading apks is a no-go. Whether I use file manager, or the default "Apk-installer", when I try to install an APK (even OEM legit ones on the internal memory), I get a momentary flash of "package install.." then right back to the file list. Seicane doesn't seem to understand the issue, even after I sent them a video of how it's behaving.
- Fader is not working. I do have left/right, but when I move fader to rear, everything goes quiet. It seems front and rear are combined, because full front has sound coming from all speakers. That's not a deal breaker since I generally listen to podcasts, and not music.
Just knowing there's someone else out there with similar issue(s) is comforting.
Seicane = Bad Customer Service, No Support after they have your money
I purchased a Seicane Nav/Radio Unit back in June 2018, and from day 1 the Parrot Bluetooth module I paid extra for has never worked. Did everything recommended, used their BT apk, tried setting up via Phone apk, changed name of BT module, change passcode to 0000, 1234, 01234, but it never saw my BT enable Phone or Tablet that was within 2 foot of the Head Unit, nor did my phone or tablet ever see the Head Unit.
I have been going back and forth with Seicane, and after 3 months got them to send me a replacement BT Module. They shipped me an unmarked module that does not even look like its Bluetooth other than the 10 pins at the bottom of it for mounting. Oh, no instructions, no explanations, nor did they tell me the Head Unit needed to be COMPLETELY disassembled to get at the existing BT module. Once opened it was apparent that the module was soldered in requiring de-soldering of the old, and soldering in the new. Problem was while inspecting how to do this I found 3 SMD resistors on the main board that were damaged during manufacturing, so now I know why the BT never worked! I assume they knew it also, and that is why they sent me the replacement module knowing that if I opened the case, the factory warrantee was then void. So now they want me to spend $60 to ship the Head Unit back to them in China, and of course, they will void the warrantee and change me $60 to get it back.......NEVER AGAIN WITH SEICANE.................
Seicane:
CPU: 8 core 64-bit CPU Coretex-A53 @ 1.5G
Memory: 3891
Kernel Version: 4.4.93+ [email protected] #263 Wed May 9 09:36:56 CST 2018
Build Number: px5-userdebug 8.0.0 OPR5.170623.007 end.hct.20180515.095719 test-keys
MCU Version: MTCE_KLD_V2.80_1 Mar 1 2018 16:54:22
Model: px5(800x480)
Android version: 8.0.0
Android security patch level: October 5, 2017
I have similar problems, i thought that only the "XRC" units (MTCE_XRC_...) ones had the problem with WiFi and Bluetooth not working sometimes when you start.
From what i saw, a restart sometimes fixes it.
Somebody said that entering into recovery and then restarting seems to always fix the issue, but it's still annoying.
Until somebody finds a "real" solution, we're stuck with restarting the unit if the WiFi/BT doesn't work.
You could try using an USB adapter for the WiFi and Bluetooth, the ones i had (for my PC) didn't work, probably we need something designed for Android.
P.S. the problem is not from custom ROMs, it does the same with the ROM that it came with.
Well, that's not very promising. I initiated the refund/return process for mine with Amazon. I have about 10 days left before the return window closes. So glad I bought from AZ vs. AliExpress or directly from Seicane.
There's another seller of the PX5 (Hizpo) that is custom fit to my Tundra, but uses the button-less trim. I'm hoping that it doesn't have this issue.
On an aside, I figured out why my APKs wouldn't side-load. Under settings/car/factory defaults/other is a setting called "install apps" which was set to disabled. Switching it to enabled allowed me to install all my favorite 'patched' apks. Unfortunately, the intermittent wifi/BT is a deal breaker. I'm hoping Seicane can come up with a fix/workaround suggestion in the coming days - else, this one is getting picked up by the big brown truck.
verszipo said:
I have similar problems, i thought that only the "XRC" units (MTCE_XRC_...) ones had the problem with WiFi and Bluetooth not working sometimes when you start.
From what i saw, a restart sometimes fixes it.
Somebody said that entering into recovery and then restarting seems to always fix the issue, but it's still annoying.
Until somebody finds a "real" solution, we're stuck with restarting the unit if the WiFi/BT doesn't work.
You could try using an USB adapter for the WiFi and Bluetooth, the ones i had (for my PC) didn't work, probably we need something designed for Android.
P.S. the problem is not from custom ROMs, it does the same with the ROM that it came with.
Click to expand...
Click to collapse
Yeah, if I can't find a satisfactory solution, my backup plan is to mount a USB hub behind the radio and use a USB Wifi/BT adapter.
From what I read, the Comfast WU725B is compatible with the android headunit. It's probably the same chipset that is used on the internal MD725 module of the head unit!
psyko_chewbacca said:
Yeah, if I can't find a satisfactory solution, my backup plan is to mount a USB hub behind the radio and use a USB Wifi/BT adapter.
From what I read, the Comfast WU725B is compatible with the android headunit. It's probably the same chipset that is used on the internal MD725 module of the head unit!
Click to expand...
Click to collapse
I've got that Hizpo arriving on Wed. If it has the same issue running stock (as the Seicane XRC) does, then I'll be happy to give the WU725B adapter a go. I just wonder why there aren't more people complaining about this phenomenon given the popularity of the PX5 systems.
psyko_chewbacca said:
Yeah, if I can't find a satisfactory solution, my backup plan is to mount a USB hub behind the radio and use a USB Wifi/BT adapter.
From what I read, the Comfast WU725B is compatible with the android headunit. It's probably the same chipset that is used on the internal MD725 module of the head unit!
Click to expand...
Click to collapse
I'd be interested to know if this works. I found a thread where others have done that to fix BT call issues. Apparently it's not just plug and play in most cases.
https://forum.xda-developers.com/an...ons-development/bluetooth-usb-dongle-t3684383
Same unit, different issues...
Hazard15301 said:
I'd be interested to know if this works. I found a thread where others have done that to fix BT call issues. Apparently it's not just plug and play in most cases.
https://forum.xda-developers.com/an...ons-development/bluetooth-usb-dongle-t3684383
Click to expand...
Click to collapse
Hi,
I think I have the same unit - I too had issues with Bluetooth, but after a factory reset it seemed to behave itself. The only downside is the hardware buttons on the facia (its a merc slk 200 type facia) are now not working! navi, setup, BT, 1-6, power etc all not responding. I'm a bit of a newb when it comes to the hardware side of these android head units - am I missing some sort of interface APK that helps the hardware buttons talk to the android OS?
Sorry for thread jacking, but I'm starting to get a bad feeling - I purchased from seicane direclty and so far, the support feels like one guy doing it after he gats back from the factory...
For ref I took some pics and a video of the issue - any hints?
https://photos.app.goo.gl/WRrc69Qr3CpFaTq7A
I believe it MTCE_MX2_V2.94_1 on 8 core 64-bit coretex-A53 @ 1.5Ghz
px5-userdebug 8.0.0 OPR5.170623.007
xboson said:
Hi,
I think I have the same unit - I too had issues with Bluetooth, but after a factory reset it seemed to behave itself. The only downside is the hardware buttons on the facia (its a merc slk 200 type facia) are now not working! navi, setup, BT, 1-6, power etc all not responding. I'm a bit of a newb when it comes to the hardware side of these android head units - am I missing some sort of interface APK that helps the hardware buttons talk to the android OS?
Sorry for thread jacking, but I'm starting to get a bad feeling - I purchased from seicane direclty and so far, the support feels like one guy doing it after he gats back from the factory...
For ref I took some pics and a video of the issue - any hints?
https://photos.app.goo.gl/WRrc69Qr3CpFaTq7A
I believe it MTCE_MX2_V2.94_1 on 8 core 64-bit coretex-A53 @ 1.5Ghz
px5-userdebug 8.0.0 OPR5.170623.007
Click to expand...
Click to collapse
You need to go into the Factory Settings menu, under the Panel Key Study header and manually set all your physical buttons
Hazard15301 said:
You need to go into the Factory Settings menu, under the Panel Key Study header and manually set all your physical buttons
Click to expand...
Click to collapse
Hi,
Yep - tried that - a couple of times (factory settings code 126) - tried reset and panel key study - nothing appears on screen. Tried waiting a minute or two but no dice. I'll try again just to be sure and report back.
---------- Post added at 10:02 PM ---------- Previous post was at 09:52 PM ----------
xboson said:
Hi,
Yep - tried that - a couple of times (factory settings code 126) - tried reset and panel key study - nothing appears on screen. Tried waiting a minute or two but no dice. I'll try again just to be sure and report back.
Click to expand...
Click to collapse
Yep - so just tried that page again - waitied about a minute and a half - nothing showed up - blank page & no response to any hardware buttons on the facia - the canbus based steering wheel answer, hangup and volume controls work as expected. So it should just detect the hardware buttons no issue? No special apk needed?
erkme73 said:
I've got that Hizpo arriving on Wed. If it has the same issue running stock (as the Seicane XRC) does, then I'll be happy to give the WU725B adapter a go. I just wonder why there aren't more people complaining about this phenomenon given the popularity of the PX5 systems.
Click to expand...
Click to collapse
The new hizpo unit worked GREAT! No dropouts. Well, at least not for the first 10 min... After that the screen went dark. Resetting and power-cycling made it beep and the buttons illuminated green for about 2 seconds... But that was it.
I did an exchange through Amazon and the replacement arrived today. On power up, no wifi or BT. ARG. I did a power-cycle, and both came back. I went to vehicle several more times during they day/evening, and despite cold booting, wifi resumed each time. Fingers crossed, but I'm guessing it will disappoint me soon.
I sent a message to the seller asking for stock MCU and firmware images, but I'm sure that will be met with crickets.
Will update if anything changes.
That didn't take long. Got in truck this am to find no wifi. Took FOUR resets for it to finally wake the wifi/bt. Really frustrating. Took a video and sent it to the Amazon seller (JBY TECH) asking what I need to do to get a functioning unit. If I do another exchange it'll be the third unit. This sucks.
Wish I could get a non-XRC unit that fits my Sequoia.
Growing more frustrated and impatient by the day, I opted to remove the back of the radio (which leaves the factory warranty seal intact) to get a better view of the wifi/bt components. The thing is tiny - smaller than a postage stamp. It appears to be soldered directly to the main board at 8 points - though the ones on the left are hard to identify due to the hot-glue applied to the antenna wire connection point. These points are not surface-mount sized. A steady hand with a standard iron should be able to comfortably resolder these connections. I would attempt it if out of warranty and all other options have been exhausted.
I did push down on each joint before re-assembling the unit. After several power-cycles, WIFI/BT remain on. The acid test will be in the AM. I am reluctant to even post this now, as I don't want to jinx it. I will post updates as they happen.
erkme73 said:
Growing more frustrated and impatient by the day, I opted to remove the back of the radio (which leaves the factory warranty seal intact) to get a better view of the wifi/bt components. The thing is tiny - smaller than a postage stamp. It appears to be soldered directly to the main board at 8 points - though the ones on the left are hard to identify due to the hot-glue applied to the antenna wire connection point. These points are not surface-mount sized. A steady hand with a standard iron should be able to comfortably resolder these connections. I would attempt it if out of warranty and all other options have been exhausted.
I did push down on each joint before re-assembling the unit. After several power-cycles, WIFI/BT remain on. The acid test will be in the AM. I am reluctant to even post this now, as I don't want to jinx it. I will post updates as they happen.
Click to expand...
Click to collapse
The seller of my radio thinks I have a bad chip as well. He's sending me a new chip, should be here monday. So I'll be doing this exact procedure when it gets here. I think someone else said there's ten total solder points, and two are real close together and very easy to short together.
I was wondering why it is that wifi and bt will remain functional across short term sleep cycles, but only seems to act up when left in sleep overnight (at least that's how it works in my case). Not sure if that points to a software or hardware issue.
Hazard15301 said:
The seller of my radio thinks I have a bad chip as well. He's sending me a new chip, should be here monday. So I'll be doing this exact procedure when it gets here. I think someone else said there's ten total solder points, and two are real close together and very easy to short together.
I was wondering why it is that wifi and bt will remain functional across short term sleep cycles, but only seems to act up when left in sleep overnight (at least that's how it works in my case). Not sure if that points to a software or hardware issue.
Click to expand...
Click to collapse
I'm no engineer, but if I unplug all wires from the back of the radio and leave it de-energized for an hour, I would think that any residual electrons would be gone - or at least comparable to an overnight connected shut down. The fact that it still works after that hour makes me think it's hardware.
The one variable that changes overnight is temperature. The unit cools down completely overnight, and by morning the symptoms return. I suppose I could take the radio and put it in the freezer/refrigerator for a few hours and see if recurs.
If it is temp, that would lend credence to poor electrical connections - with the most likely suspect being the hand-soldered points (not the SM-ed board components). Admittedly, it's a stretch.
If your seller has OK'ed the replacement of your board, if I were you, I'd practice with the old one and re-solder those 8-10 points.
I recall reading posts elsewhere stating that keeping pressure on that board resolved the issue (one guy wrote about using tape!).
I just received word from the seller that they suspect the "core board" to be the problem. They want me to open the case and unplug/replug it to see if that resolves it. I've attached their photo. If it does not solve the problem, they suggest replacing it, and they provided a link to the latest XRC firmware (XRC8.0_20180510). I'm downloading it now.
Looks like when daylight comes, I'll be doing some vendor-approved dissection...
New daylight, and with permission to disassemble, I managed to get a better picture of the wifi/bt module. Unless there are pins underneath the board, it really looks like 8 connections.
I removed the 'core board' and replaced it. No wifi/bt. After third power-cycle it came up.
I really think this is temperature-related. By the 2nd or 3rd reboot, the electronics have warmed up and it starts working. Now I have to wait until it gets back to ambient temp to do more testing. To prove this theory, I've placed it in my freezer. I'll give this a go in about 30 min. If it stop working again, I think that would be pretty conclusive. Will update as I proceed.
After leaving the unit in the freezer for 30 minutes, the wifi/bt once again stopped responding. In fact, it stayed off for about 5-10 minutes (regardless of the number of power-cycles/resets). I even held down on the wifi chip and it made no difference. Only after it had completely thawed out and warmed up did it re-enable.
I'm going to relay this back to the seller. FWIW, since they provided me with a factory rom and MCU image, I took this chance to install the Hal9k rom. WOW is that worth it...
erkme73 said:
I just received word from the seller that they suspect the "core board" to be the problem. They want me to open the case and unplug/replug it to see if that resolves it. I've attached their photo. If it does not solve the problem, they suggest replacing it, and they provided a link to the latest XRC firmware (XRC8.0_20180510). I'm downloading it now.
Looks like when daylight comes, I'll be doing some vendor-approved dissection...
Click to expand...
Click to collapse
Could you upload the MCU update image?
Interesting stuff about the temperature. Quite frankly I had this ruled out since rebooting through recovery fixes the issue 100% of the time while normal reboots only works sporadically. I was under the impression that the issue was related to the MCU or some other component not waking up the device from sleep when unit wakes up.

Chinese Android Headunit HVAC Issues - Acura TSX

So I purchased a Chinese headunit from AliExpress. It is a direct fit plug and play replacement that goes in place of the radio and also replaces the HVAC controls.
Ever since the install the HVAC controls have not been acting properly. I was wondering if maybe someone here would know a solution. I'm not all too familiar with these units but maybe there's a software solution with an upgrade or change. Basically when first installed it will blow out cold air when set to Low (or cold.) But when I put the temperature up to hot and back to cold the system does not want to switch back to cold. No matter what I do from that point it will not switch back to cold.
I've read that this unit used for the 2004-2008 Acura TSX is actually just the same unit made for the Honda Accord 7 (2003-2007). So when going into Can Box (or Bus) settings the chosen CAN BUS is for Honda Accord.
I’ve tried resetting the unit to factory settings. I’ve tried different CAN BUS settings that are built in. Usually disconnecting the car battery for a bit and putting it back will allow for cold AC again. The seller from AliExpress sent me a new AC board which had to be installed by taking off the back of the unit and soldering a few wires on. It still does not function correctly after the new board. With the stock radio installed there is absolutely no issues with the HVAC controls.
I was wondering if anyone else has had a similar problem or if anyone knows a solution. I really wish I could use the headunit especially that I spent almost $400 on it and now it’s useless. I haven’t tried updating the Android OS or CAN BUS or MCU. I’m not 100% sure where to find the correct one but I’ve heard it’s the same unit used for the Accord 7 by Joying.
Any help would be appreciated!
j.goose said:
I was wondering if anyone else has had a similar problem
Click to expand...
Click to collapse
Hi there. I actually have a similar problem. I have a 2007 Honda Accord Euro here in Australia, which is the same as the Acura TSX in the US.
The aircon controls were perfect on the stock climate control system but on this unit it's just a bit annoying. It seems to have fewer steps in the fan speed selections but the main problem is that the pop up controls keep coming back on the screen as if I've adjusted something. Every 2-3mins I need to back out of the air conditioning controls.
I think that $400 for a chinese headunit from Aliexpress sounds too much. I was always thinking that it can cost around $150 but never $400. I think that with $400 I will change the whole A/C system in a small car and it is going to work perfectly a lot of years. So think about it. I think you need to check this page, usually here are a lot of professionals that know everything about A/C systems and things related to it. Otherwise you need to go to local services and pay them to install everything normally.
Next time try to Purchase from HVAC Parts Direct as it provides genuine branded products ranging from Aaon Capacitors to Actuators.
Did you ever find a solution to the AC screen poping up all the time, mine does it and it’s really annoying
whitehall said:
Hi there. I actually have a similar problem. I have a 2007 Honda Accord Euro here in Australia, which is the same as the Acura TSX in the US.
The aircon controls were perfect on the stock climate control system but on this unit it's just a bit annoying. It seems to have fewer steps in the fan speed selections but the main problem is that the pop up controls keep coming back on the screen as if I've adjusted something. Every 2-3mins I need to back out of the air conditioning controls.
Click to expand...
Click to collapse
Did you ever fix the AC screen poping up all the time? Cheers
Tony180793 said:
Did you ever fix the AC screen poping up all the time? Cheers
Click to expand...
Click to collapse
Unfortunately not. At least not completely. I have a feeling it pops up because either of the temperature dials is slightly off notch. Ie, they're ****ty Chinese dials and probably only cost a couple of cents. Try adjusting the dials to be on the notch (you'll feel it) and see if it helps.
whitehall said:
Unfortunately not. At least not completely. I have a feeling it pops up because either of the temperature dials is slightly off notch. Ie, they're ****ty Chinese dials and probably only cost a couple of cents. Try adjusting the dials to be on the notch (you'll feel it) and see if it helps.
Click to expand...
Click to collapse
Eyyy, that seemed to have worked, just wish there was a way to disable to screen coming up all together as it’s not needed
Tony180793 said:
Eyyy, that seemed to have worked, just wish there was a way to disable to screen coming up all together as it’s not needed
Click to expand...
Click to collapse
You can! But you have to disable the integration which connects the head unit to the AC controls altogether. Go into the setup menu with password 8888 and clear the setting (sorry, I can't remember what it's called right now). But it means you'll be adjusting temperature, fan, and modes blind.
whitehall said:
You can! But you have to disable the integration which connects the head unit to the AC controls altogether. Go into the setup menu with password 8888 and clear the setting (sorry, I can't remember what it's called right now). But it means you'll be adjusting temperature, fan, and modes blind.
Click to expand...
Click to collapse
Oh really! That’s awesome, if you remember the name of the setting, hit me up, I would really appreciate it… I live in a cold climate and rarely use AC or the heating at all… Thanks for your help
Tony180793 said:
Oh really! That’s awesome, if you remember the name of the setting, hit me up, I would really appreciate it… I live in a cold climate and rarely use AC or the heating at all… Thanks for your help
Click to expand...
Click to collapse
Was just in the car and took note of the settings for you!
Open the Car Settings page (different to Android Settings)
Go to Factory Settings and enter the password of 8888 and click OK
Go to Protocol Settings, take note of what it's currently set to so you can revert (mine is Changyuantong - Honda - Accord 7)
Swipe all the way to the top of the left menu and choose NO CANBUS.
Back out of the settings pages and you won't have any integration between the head unit and the car's AC unit. You can still make adjustments to temperature, fan speed, etc, but you'll have no info on the display to show you what you're changing.
Sorry. I have installed new tesla style head unit and have same problem with my CRV 2010. The a/c control seem work but only blow hot air and won't cooling interior. Did anyone find that fix?
kakahoho said:
Sorry. I have installed new tesla style head unit and have same problem with my CRV 2010. The a/c control seem work but only blow hot air and won't cooling interior. Did anyone find that fix?
Click to expand...
Click to collapse
Did contact seller for support
marchnz said:
Did contact seller for support
Click to expand...
Click to collapse
I sent pm to seller but won't get respond from
him.
Well I have the same issue on my 07 TSX. When I am in dual zone I have the most issues. I set the driver's side to Lo and passenger's side to 80 and driver's side stays cold and speed is higher while the passenger's side is still cold and a little slower on the blower (this is on the lowest setting). If I cycle through the modes and go back to the front, both sides are warm. Something is really off with the A/C controls. I've contacted the seller and will try to work this out. If not they will need to somehow pick up the unit at their expense or I will be doing a chargeback.

Help with Android Head Unit install in 2013 Audi Q5 (p60? Android 10?) (backup camera, mmi controls, air bag light)

Hello, I hope this is the right place, I keep finding this forum every time I search trying to trouble shoot my issues. Long story short, I had been eyeing these head units for my Q5 to add CarPlay, a local installer recommended the same model, and I thought great, so I ordered it and they installed it. I am however having 3 issues, and while the seller has been helpful, they are on a completely different time zone and it’s not progressing well unfortunately. The installer can’t find anything wrong. Little did I know what I was getting into, and I can’t find a manual or even a specific model number to search on.
My Car:
2013 Audi Q5 MMI (3g, gps nav, etc built in, AMI port in glove box, but everything else is in the center console under the screen)
Unit I installed as recommended by installer:
Android 10.0 Head Unit for Audi Q5 2009-2017 Car GPS Navi Stereo Radio 4G BT RDS 732910618142 | eBay
Find many great new & used options and get the best deals for Android 10.0 Head Unit for Audi Q5 2009-2017 Car GPS Navi Stereo Radio 4G BT RDS at the best online prices at eBay! Free shipping for many products!
www.ebay.com
My 3 issues:
1) My OEM backup camera does not show video. The radar sensors work. When I put the car into reverse the unit changes to backup mode, but the video image is black. There are multiple backup camera options in the software, I have tried them all. The after market selections at least give me the radar visual and lane lines, but still no video feed. The OEM option only shows me a black screen with a picture of a Q5 on the right.
2) The audio from the head unit is not coming through the car stereo. None of the center console controls work. The right 2 control buttons around the knob are both always flashing slowly. Only Radio works and can be controlled by steering wheel. My phone seems to be synced to car‘s original Bluetooth, and audio takes over when I get a call.
3) My airbag light in the dash is on. I am certain this is because the bezel they sent me only has the hazard light switch.
The unit otherwise is getting better and better as I learn to use it and CarPlay, which I ultimately bought it for, is working well too. My wife and I though are really struggling without the backup camera, and I fear I’ll be ripping the whole thing out and putting the original unit back in if I can’t fix that.
I have pictures of everything inside and out I can share. I’ll add them later as I can. But since this forum keeps coming up in my searches, I thought I would get a conversation started and see if anyone could help me. Really appreciate any assistance in advance. At this point I’ve become versed in taking the car apart and can get behind the entire vertical stack in the center and have confirmed what I can. I’m pretty handy with software as well.
(At the very least to start, a picture of my backup camera options in the software, I’ve tried them all)
jcapxda said:
Hello, I hope this is the right place, I keep finding this forum every time I search trying to trouble shoot my issues. Long story short, I had been eyeing these head units for my Q5 to add CarPlay, a local installer recommended the same model, and I thought great, so I ordered it and they installed it. I am however having 3 issues, and while the seller has been helpful, they are on a completely different time zone and it’s not progressing well unfortunately. The installer can’t find anything wrong. Little did I know what I was getting into, and I can’t find a manual or even a specific model number to search on.
My Car:
2013 Audi Q5 MMI (3g, gps nav, etc built in, AMI port in glove box, but everything else is in the center console under the screen)
Unit I installed as recommended by installer:
Android 10.0 Head Unit for Audi Q5 2009-2017 Car GPS Navi Stereo Radio 4G BT RDS 732910618142 | eBay
Find many great new & used options and get the best deals for Android 10.0 Head Unit for Audi Q5 2009-2017 Car GPS Navi Stereo Radio 4G BT RDS at the best online prices at eBay! Free shipping for many products!
www.ebay.com
My 3 issues:
1) My OEM backup camera does not show video. The radar sensors work. When I put the car into reverse the unit changes to backup mode, but the video image is black. There are multiple backup camera options in the software, I have tried them all. The after market selections at least give me the radar visual and lane lines, but still no video feed. The OEM option only shows me a black screen with a picture of a Q5 on the right.
2) The audio from the head unit is not coming through the car stereo. None of the center console controls work. The right 2 control buttons around the knob are both always flashing slowly. Only Radio works and can be controlled by steering wheel. My phone seems to be synced to car‘s original Bluetooth, and audio takes over when I get a call.
3) My airbag light in the dash is on. I am certain this is because the bezel they sent me only has the hazard light switch.
The unit otherwise is getting better and better as I learn to use it and CarPlay, which I ultimately bought it for, is working well too. My wife and I though are really struggling without the backup camera, and I fear I’ll be ripping the whole thing out and putting the original unit back in if I can’t fix that.
I have pictures of everything inside and out I can share. I’ll add them later as I can. But since this forum keeps coming up in my searches, I thought I would get a conversation started and see if anyone could help me. Really appreciate any assistance in advance. At this point I’ve become versed in taking the car apart and can get behind the entire vertical stack in the center and have confirmed what I can. I’m pretty handy with software as well.
(At the very least to start, a picture of my backup camera options in the software, I’ve tried them all)
Click to expand...
Click to collapse
Sorry to say, issue 1 and 3 are quite sure installation issues.
For the first one: Quite clear and could be measured: The backup camera has no power. There should be a connector for the power feed. --> instructions.
Third one: They removed the connector for the airbag, while checking the unit with ignition on. Can be reset at the dealer or by someone who has the right tooling.
Second one: Look into the settings of the unit and check the settings for the CAN box. 2 possibilities here: You got the wrong CAN box or the setting is not set to external amplifier.
@rigattoni thank you
rigattoni said:
Sorry to say, issue 1 and 3 are quite sure installation issues.
For the first one: Quite clear and could be measured: The backup camera has no power. There should be a connector for the power feed. --> instructions.
Click to expand...
Click to collapse
Well installation issues, at this point I think I can fix (famous last words). Getting parts / seems to be harder with communication challenges. (was instructions supposed to be a link?)
I pulled things out last night, I didn't find the RCA yellow video in I expected (there are 2 but they both seemed to be for aftermarket and are disconnected. There wasn't the obvious yellow <-> yellow rca adapters I see everyone else have with the power feed to the reverse lights. I'm assuming it's (in theory) feeding in through the primary adapter (block of plugs) going in to the back of the Android unit. I was able to account for all other connectins.
rigattoni said:
Third one: They removed the connector for the airbag, while checking the unit with ignition on. Can be reset at the dealer or by someone who has the right tooling.
Click to expand...
Click to collapse
They reset it, it keeps coming back on. My original had a light, this bezel doesn't. As I understand there is likely some resisitance that's supposed to be here ...
rigattoni said:
Second one: Look into the settings of the unit and check the settings for the CAN box. 2 possibilities here: You got the wrong CAN box or the setting is not set to external amplifier.
Click to expand...
Click to collapse
Thanks, I will check settings. There's a "key settings" and offers 4 & 8. It's the only major configuration section I don't understand. But I think I've tried both. Will look again.
jcapxda said:
Well installation issues, at this point I think I can fix (famous last words). Getting parts / seems to be harder with communication challenges. (was instructions supposed to be a link?)
Click to expand...
Click to collapse
No link, the seller should at least provide some installation instruction with the unit.
As I don´t know the unit and don´t know what has been provided with the unit itself, I am not able to help.
Your backup camera should have a video output which needs to get connected with the head unit. Where to put, needs to get from the seller. If he is not able... send this crap back.
The same for the airbag error message... If the seller is not able to give clear instruction... send the crap back.
Seller finally agreed they didn't send me all the right cables. Specifically they mentioned I need an AMI cable, but also the LVDS plug (in the photo above, in the top left) ... should have an adapter. Which I've specifically asked them about a few times in pictures, but as I suspected it, it can't just be unplugged and needs an adapter to plug into the rest. So... those are on their way, we'll see. I suspect the OEM backup cam video comes in via that cable based on my research and wiring diagrams, but again, we'll see.
jcapxda said:
Seller finally agreed they didn't send me all the right cables. Specifically they mentioned I need an AMI cable, but also the LVDS plug (in the photo above, in the top left) ... should have an adapter. Which I've specifically asked them about a few times in pictures, but as I suspected it, it can't just be unplugged and needs an adapter to plug into the rest. So... those are on their way, we'll see. I suspect the OEM backup cam video comes in via that cable based on my research and wiring diagrams, but again, we'll see.
Click to expand...
Click to collapse
Good to know.
Did they give you a guide how to fix the airbag issue?
Just to let you know: In case of an accident, the airbags can be activated or not without control. This is a severe security issue, you should take care of.
The AMI cable just provides audio and is normally used for external audio sources like iPod, IPhone and such things. May be they use it to get the head unit speaking to your OEM amplifier. I don´t know your unit and the specs. At least Audi is not that easy with these kind of units.
Well, predictably, nothing's easy.
They sent me a splitter cable for the airbag (passenger occupancy light) and hazard button. (but there's only one input to split into ....
LVDS cable was missing, so that connects the LVDS feed -> back of android. I do finally have some sight to the OEM UI, but only briefly, and I can't interact with it with any buttons. The backup camera will come on but only briefly, and only the first time. After that it cuts to OEM nav, and then only for a second.
AMI adapter (straightforard) would in theory help audi, but I suspect the priori issue with the oem system and lack of mmi buttons working is somehow blocking control / and thus "aux" audio.
However, at the least, I was able to remove the OEM occupancy / hazazrd button, and attach it to the splitter they gave me. Tucked it into the dash (meaning I can't... see the light but for now fine) and cleared the Air bag code. And yes, air bag stays off. Finally. So that's better.
I'm awaiting their reply on all the rest. Driving me crazy. Based on searches, I'm starting to wonder if this is programmed for the wrong baud rate? I only vaguely know these terms, but have stumbled across similar symptoms of people retrofitting MMI 3G+ and issues witht the controls not working, flashing red lights.
jcapxda said:
Well, predictably, nothing's easy.
They sent me a splitter cable for the airbag (passenger occupancy light) and hazard button. (but there's only one input to split into ....
LVDS cable was missing, so that connects the LVDS feed -> back of android. I do finally have some sight to the OEM UI, but only briefly, and I can't interact with it with any buttons. The backup camera will come on but only briefly, and only the first time. After that it cuts to OEM nav, and then only for a second.
AMI adapter (straightforard) would in theory help audi, but I suspect the priori issue with the oem system and lack of mmi buttons working is somehow blocking control / and thus "aux" audio.
However, at the least, I was able to remove the OEM occupancy / hazazrd button, and attach it to the splitter they gave me. Tucked it into the dash (meaning I can't... see the light but for now fine) and cleared the Air bag code. And yes, air bag stays off. Finally. So that's better.
I'm awaiting their reply on all the rest. Driving me crazy. Based on searches, I'm starting to wonder if this is programmed for the wrong baud rate? I only vaguely know these terms, but have stumbled across similar symptoms of people retrofitting MMI 3G+ and issues witht the controls not working, flashing red lights.
Click to expand...
Click to collapse
Hello where did you put the splitter into?
1 goes to the original cable
1 goes to the new framepanel (without the air bag light)
and where goes the third cable?
Please help thx

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