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Hi guys..
Well first of all how I wish I'd checked these forums first before buying as I wouldn't have, second I wish I'd at least bought from the UK as I'd get some support. But hey ho I didn't and I'm stuck with it as returning to china seems to risky after the message suggested returning at a value of $70 so they don't get taxed and also making sure its sent by EMs so it doesn't get lost in transit like many units do at customs!!
So I bought what seemed to be an all singing all dancing unit from seicane store on ali express, for my seat ibiza mk5. According to the system info via root check app it's a px3, 7.1.2 android, rock chip, rk30sdk.
Amongst many other problems my main one is the Bluetooth audio quality over A2DP is horrendous, and it's not an amp problem as over aux or USB it's perfect. I've been looking at airplay using air bubble app and personal hotspot but it's too long to load and unstable I only drive 15 min to work so just want fast music to my ears! I've considered getting a Bluetooth transmitter and sticking it in the aux input but not ideal.
Anyone got suggestions as to what the issue may be and if it can be resolved?
Thanks in advance hope I can get this stable one day!
mine is also horrendous, and I also have a very short drive. Connecting a hotspot and launching app and getting a song, takes just too long for me. I'm basically already at my destination by the time I get it up. My workaround was to do what you said, and get a bluetooth transmitter and sticking to the aux, because aux sounds fine, but just bluetooth over a2dp sounds so bad, and has this distorted high end sound. This solution worked for me for awhile, but the only downside is you don't get song information on the head unit to display, which is a tad annoying for me.
I've contacted my radios reseller, and they're just ridiculously helpless, all they do is keep sending me a "software" update to fix it, but it does nothing. I've been searching for over a year for a solution, but have found nothing to fix it, other than what I just said. Problem was still there even when I used custom roms. SO I don't really think its a software issue, maybe some kind of hardware I can replace or modify, but I just really have no clue.
davidgotmilk said:
mine is also horrendous, and I also have a very short drive. Connecting a hotspot and launching app and getting a song, takes just too long for me. I'm basically already at my destination by the time I get it up. My workaround was to do what you said, and get a bluetooth transmitter and sticking to the aux, because aux sounds fine, but just bluetooth over a2dp sounds so bad, and has this distorted high end sound. This solution worked for me for awhile, but the only downside is you don't get song information on the head unit to display, which is a tad annoying for me.
I've contacted my radios reseller, and they're just ridiculously helpless, all they do is keep sending me a "software" update to fix it, but it does nothing. I've been searching for over a year for a solution, but have found nothing to fix it, other than what I just said. Problem was still there even when I used custom roms. SO I don't really think its a software issue, maybe some kind of hardware I can replace or modify, but I just really have no clue.
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Yeh I've ruled out airplay as an option,
you've got me interested though as you're in a similar boat as me so hopefully can help, do you have the exact same unit for an ibiza or?
And yes thats exactly whats annoying me not getting track info, may as well just use the original head unit if i get a bluetooth transmitter!! which transmitter did you get? i've got a really cheap basic one years old and its got a high pitched whining noise in between song skips so its there just muffled out by songs playing, I'm wondering if thats probably just a cheap receiver I've got..
I'll try get somewhere with the hardware see about a new bluetooth module but no idea on the interface would be total guess work and risky at that, not even sure how to safely root this one.
Other issues i'm having which may be common and you may know? I got a dash cam which cam with a yellow RCA, an Acc+ wire, a ground wire and a 12V wire.. i don't understand why its got an Acc+ and a 12V, i thought similar things both transmit power just one off the ignition being on only? theres no 12v out wire on the head unit except 'cam pow' which I've tried to no avail. I plan on recording direct to the SD card on the camera.
Subwoofer out, does this work on our units? i bought it because i plan adding a 4 channel amp for F/R speaks and a sub amp for a single sub.. but does the rca not work / no amplifier control over it?!
Cheers hope to get somewhere with this as i feel a bit down that its not all singing all dancing like i expected lol.
i have a Seicane with Android 6.0 already, which I dont really have any problems with, but it is not PX3
however, I do have a Seicane with Android 7.1 on the way that does have a PX3. I'll report back when i get it to see if I have any issues
CadillacMike said:
i have a Seicane with Android 6.0 already, which I dont really have any problems with, but it is not PX3
however, I do have a Seicane with Android 7.1 on the way that does have a PX3. I'll report back when i get it to see if I have any issues
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your bluetooth quality is as good as aux? i wonder if its a software bug..
joshh1512 said:
your bluetooth quality is as good as aux? i wonder if its a software bug..
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Click to collapse
Well the 6.0 version is totally different hardware
it is a known issue that no one seems to have a fix for. Im having this same issues with my PX5 Dasaita unit and had this issue on a previous Xtrons unit aswell. I believe it is a problem with the bluetooth drives not supporting the higher bitpools of recent bluetooth updates hence the bad quality. Ive even tried installing a USB bluetooth dongle but could not get the unit to recognize it.
roly01 said:
it is a known issue that no one seems to have a fix for. Im having this same issues with my PX5 Dasaita unit and had this issue on a previous Xtrons unit aswell. I believe it is a problem with the bluetooth drives not supporting the higher bitpools of recent bluetooth updates hence the bad quality. Ive even tried installing a USB bluetooth dongle but could not get the unit to recognize it.
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Well I also have a Dasaita PX5 and I definitely didn't have a problem on that one. I would listen to Bluetooth audio on it pretty regularly.
Quick from Hot Audio did email me and ask about it, saying they had heard complaints, and sent me a new harness, but I haven't needed it
CadillacMike said:
Well I also have a Dasaita PX5 and I definitely didn't have a problem on that one. I would listen to Bluetooth audio on it pretty regularly.
Quick from Hot Audio did email me and ask about it, saying they had heard complaints, and sent me a new harness, but I haven't needed it
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What email did you contact for hot audio? I have reported the issue but they have made no mentions of a different harness. Thanks
roly01 said:
What email did you contact for hot audio? I have reported the issue but they have made no mentions of a different harness. Thanks
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Just the default contact
[email protected]
Well i've gone an ordered a car play dongle, so hopefully that will be a solution for good radio and a more functional nav at the same time.
Any tips for the dash cam guys? i ordered the 3 cable power one rather than a usb to keep the slots free.. not sure where i should hook them up to. (12V yellow, Acc+ red, black Grnd), i've only got an acc+ on the back of the harness and ground i made an earth wire to the car. Left the 12v off and it doesn't turn on. but my unit doesn't have a 12v, only acc+ or cam pow.
Got a pic or link to the camera you got?
So i have this camera..
https://www.aliexpress.com/item/140...32812106756.html?spm=a2g0s.9042311.0.0.MXwOS4
and this unit..
https://www.aliexpress.com/item/Aft...32827061575.html?spm=a2g0s.9042311.0.0.MXwOS4
The seller said to connect acc+ to acc+ on the unit, 12v to the cars 12v and grnd to the cars ground. I made an earth for the ground just to a screw towards the rear inside of the dash, but not sure where i'll safely take 12v from? especially with the car having a can bus if i splice any wires that may cause an error? Surely these units put out a 12v signal somewhere?
heres the wiring diagrams... https://ae01.alicdn.com/kf/HTB1z7DmnMn.PuJjSZFk763_lpXaZ.png
Also another Q regarding using an external amplifier for speakers and a sub.. is there an issue with the actual volume sent to the amps and can this be resolved? depending what input i give the head unit the volume differs, aux a lot quieter than usb stick or bluetooth.. but even both of them at volume 30 neither are really very loud where you here the speakers distorting, with a standard radio or branded head unit towards top end the speakers would distort so i can set a 'safe' max limit, my concern is the android head unit will limit the amp? and i've seen no info on rooting these units for viper4audio if that would help.
Thanks
Edit: how would i check if the 'cam-pow' wire is putting out 12v with a multimeter? just hold one probe to the wire and touch a ground point with the other?
BT & USB Support on PX5
Guys,
Sorry to tell you, the ROMS are very stripped down and as a result, the only support will be for the listing of BT modules that are on the main board and only for the ones list in the setup. You will not be able to add an external usb BT module to the head unit, it will not reconize them, and therefor will not work. Same with other USB devices. All support has been stripped out of the firmware. Some of these company's are getting slick enough to modify the firmware even more to only support devices that they sell, locking you into buying there junk. Good Luck! I had a BT problem with a Seicane Head Unit, and tried every possible, BT usb module only to find out what they do. Anyone want to purchase BT usb modules cheap!!!!!!
Seicane PX5:
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
So basically I've had nothing but bad luck. In short, Originally my unit would freeze and would also lose GPS signal on top of very poor internal or external microphone quality to the decree it was unusable, absolutely noone could hear me even if I shouted directly into the microphone.. I added a heatsink for the GPS issues... I then upgraded to the 6021 motherboard and still the external microphone and internal microphone are unusable. I tried using a splitter, tried using a different external microphone, tried without the external mic, nothing worked.. leaving me very frustrated but what is worse is the agent on here who I purchased the 6021 motherboard from has gone MIA and I cannot reach him.
I really want an Android Car Stereo, but I also want it to function properly.
Are the new Octocore Units any good? Do the Google Voice commands work as well as external microphone?
If not, What would happen if I use a Pico ITX Board with an I7 processor, installed Android on a solid state drive, added 8GB DDR3 RAM and paired it with a 7" display? How would I aquire touch drivers? Will I be able to get GPS to work? how about bluetooth calls and how would they be handled?
I'm interested to see what you turn up
I have parts you might be able to use, from the metal 2 DIN box and other Joying parts PM me if I can help.
Guys I need help.
I am extremely...extremely...pissed right now. I just blew off hundreds of dollars on a replacement Intel Joying unit (shipping, cost of the unit, wiring, ect) only to find it arrive DoA. It will not make bluetooth phone calls regardless of what I do. It will innitiate the call but there is absolutely no audio. All other bluetooth functions work. I checked settings on both my phone and the unit and everything seems fine. My older unit atleast was able to HEAR the call, this one cannot even do that.
I am done with Joying... This is my 4th replacement - I want to make my own unit now but I don't know where to begin. I was to use an Intel Mother Board and I want to beable to make / receive bluetooth calls but not sure what I would need to do to do that. I also want to run Android. Basically I want to build a Pico ITX minimum of Android 6 and minimum of 2GB of RAM, preferably 4GB and 16GB SD -- Not sure what to do about the screen, touch display / drivers, or audio for both music or bluetooth phone calls / microphone
If I'm forced to do Micro ITX I'd rather make a Windows Unit since I wouldn't be able to fit it where the radio goes.
Any help would be appreciated.
Need4Camaro said:
Guys I need help.
I am extremely...extremely...pissed right now. I just blew off hundreds of dollars on a replacement Intel Joying unit (shipping, cost of the unit, wiring, ect) only to find it arrive DoA. It will not make bluetooth phone calls regardless of what I do. It will innitiate the call but there is absolutely no audio. All other bluetooth functions work. I checked settings on both my phone and the unit and everything seems fine. My older unit atleast was able to HEAR the call, this one cannot even do that.
I am done with Joying... This is my 4th replacement - I want to make my own unit now but I don't know where to begin. I was to use an Intel Mother Board and I want to beable to make / receive bluetooth calls but not sure what I would need to do to do that. I also want to run Android. Basically I want to build a Pico ITX minimum of Android 6 and minimum of 2GB of RAM, preferably 4GB and 16GB SD -- Not sure what to do about the screen, touch display / drivers, or audio for both music or bluetooth phone calls / microphone
If I'm forced to do Micro ITX I'd rather make a Windows Unit since I wouldn't be able to fit it where the radio goes.
Any help would be appreciated.
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Click to collapse
Try to get in contact with lbdroid (doitright). He is working on a HiKey960 unit to build it up from the ground. You can possibly find him via his repositories: https://github.com/lbdroid?tab=repositories. He had his track of work on the previous no longer existing carjoying forum. He is now active in the hikey forums.
Another option is to go for a Sony XAV-AX100/AX200. Look for superDave's posts/threads in the https://forum.xda-developers.com/android-auto/android-auto-general subforum
surfer63 said:
Try to get in contact with lbdroid (doitright). He is working on a HiKey960 unit to build it up from the ground. You can possibly find him via his repositories: https://github.com/lbdroid?tab=repositories. He had his track of work on the previous no longer existing carjoying forum. He is now active in the hikey forums.
Another option is to go for a Sony XAV-AX100/AX200. Look for superDave's posts/threads in the https://forum.xda-developers.com/android-auto/android-auto-general subforum
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Click to collapse
I'll see what I can do.
Meanwhile what do you think of these?
This case:
Case: https://www.mo-co-so.com/ByByte-Black-Box-N-Nano-ITX-Car-PC-Case-p/mcs-byb-bbn.htm
One of these Boards:
#1: https://www.amazon.com/dp/B078RT6H8...d_r=a663cc29-8384-11e8-8137-95af0e3aa013&th=1
#2: https://www.amazon.com/Jetway-NP591...51%2B1nH7bs1L&preST=_SY300_QL70_&dpSrc=detail
#3: https://www.amazon.com/Jetway-Pico-ITX-Celeron-Quad-Core-1-83GHz/dp/B01C6FB834
#4: https://www.amazon.com/ODROID-XU4-S...D=51GIGaNDk1L&preST=_SX300_QL70_&dpSrc=detail
Hi
I've been looking at getting an android unit to replace the OEM stereo/sat nav in my 2012 Passat. I want to move to get Spotify and Google maps (I'd like to plug a SIM into the unit for internet rather than link to my mobile).
The audio on the OEM is great so I'm worried about moving to something with much worse quality.
All the posts I've read here suggest that all the Chinese units have very bad quality audio? I've been looking at units with the TDA7851L chip.
Is there anything out there now that won't disappoint me? I don't want to go down the road of needing a separate amp.
If not I think I'm stuck with the OEM until I buy a new car!
Thanks in advance for any useful advice!
Does your car have a factory premium audio system? I've seen a few threads about getting Chinese HU to use the factory amp and there are after market adapters available too. Here's a couple threads that mention it. The best advice is to question the seller about compatibility of the HU with the car's system before you buy and talk to many sellers.
If your current OEM radio only has a built in amp then you should probably look for a HU with DSP. The poor sound of some units had a lot to do with the fake EQ they used and the sound got fixed with using Viper4Android. The DSP EQ actually works and saves you the trouble of rooting the HU and installing a custom ROM.
One important consideration you get what you pay for. There are Allwinner and Mediatek HU that sell for cheap and they are cheap so expect the sound quality to be the same.
Amps are pretty cheap. I wouldn't worry about it.
Sent from my Pixel 3 XL using Tapatalk
My experience with a few of chinese HUs is the sound quality is very good. You will find the specs of the off the shelf e.g. TI sound chips are very good Hi Fi. The chinese devs usually use the standard circuits of the chip manufacturers reference design-right down to the same component values.
One problem they sometimes have, is matching these blocks. One HU I had had issue with: volume from radio was full blast at just over min setting of volume control i.e could not reduce volume level to a low enough-full or off! My fix was soldering in resistors in-line at radio audio output ahead of the internal amp. to match levels. Smooth control resulted. Any external fix would have resulted in distorted audio. Max volume, all inputs, should occur at 75-90% of volume setting. This gives full range and a small allowance for weaker than normal signals.
Thanks for the comments. I don't have a separate amp at present and I don't want to put a separate one in, not to do with price, more about keeping things simple. Also I don't want to get involved with soldering etc, I just want 'plug and play'.
Sounds like the HUs with DSP are now pretty good - all the Chinese one's seem to use the same chips, so now need to choose a brand!
Sorry if this topic is covered elsewhere, after searching i couldn't find anything.
I've just bought a generic 8227L HU which claims to have Android 10.1 installed. Everything appears to work fine except the audio side of the AV in App.
Iv'e fitted this HU to my Range Rover along with DVB Television and whilst i get a great picture, there is no sound.
Iv'e verified there is sound actually getting into the HU by removing the cover and checking there is audio using an Oscilloscope on the circuit board.
I did read elsewhere someone else had a similar issue and was told after Android 9.0 Aux Audio in was no longer supported.
Iv'e yet to decide if this is a hardware fault, App problem or the version of Android. Does anyone know of an app for AV in i could try?
TIA
You ever figure this out?
Does your RR have optical audio?
Hello. I bought a damaged radio and replaced the PX5 processor module from another radio (PUMPKIN). After replacing the PX5 processor module, the radio works - I only had a problem with Bluetootch - the GOC-RF210 module was installed in my radio, which was not on the factory settings list. So I replaced the BT i140 module with Pumpkin. After switching the BT module to the i140 and selecting it in the factory options - it works without any problems. Radio works, navigation, DSP processor, bluetootch. The only problem is the lack of voice only in the MUSIC application (e.g. from a flash drive) and movies from the Internet and navigation. Visually, everything works only without a voice. Oddly enough, there is sound from the radio and BT. There is also a beep sound from the buttons all the time. I was restoring factory settings, updating the MCU but nothing changed. I did not find a solution in the factory settings. There was also no sound before replacing the BT module. Can anyone help in solving the problem? Regards.
So, based on some of your comments, I am assuming the PX-5 module still has the same Android SW that it had on the PUMPKIN unit, or you installed it again using a PUMPKIN release
"the GOC-RF210 module was installed in my radio, which was not on the factory settings list "
Could it be that you're mixing PX5-Android OS from one provider with the MTCD/E board of another provider? Do you know who manufactured the "original unit" (the Physical unit, regardless of where you took the PX5 from)
So, while I can not give you a definite answer, this is the thinking process I'd follow if I were on your shoes:
1) PX5 is a standard board/HW. All units are the same. What is not (always) the same is the modifications each provider makes to the underlying Android OS to be able to control the MTC-D from Android... although there is a lot of overlapping and compatibility among providers.
2) The fact that you were not able to see on the "Pumpking-Flavor" of Android-UI the Bluetooth module used by your motherboard, points to some level of incompatibility there... but that incompatibility would be between Android-flavor and the micro-controller of your motherboard, not between PX5 and your motherboard (because all PX-5 are the same, HW-wise)
3) I'd try to define who was the manufacturer of the motherboard/main unit and flash on the PX5 an Android version provided by them and a Firmware version provided by them. Meaning, your unit won't be a Pumpkin anymore. It will become back whatever it was before changing the PX-5, but with a new PX-5
If you are not sure who was the original manufacturer, try with Hal9K ROM or Malaysk. But DO NOT change the Android version you have now... let's focus on a problem at a time
My gut-feeling is that your MTCD/E microcontroller is expecting a specific code to instruct the BCM chip (the audio processor, which selects input audio to be played) to connect the PX-5 Audio to the Output... but the App running on the PX-5 which is in charge to talk with the micro-controller is sending some other code, because it expects to be talking to a different board.
While somebody could counter-argue "why only the sound is not working, if the motherboard is not compatible", I'd say that maybe the Android-SW is expecting the motherboard to have a DSP while it doesn't have one (or the other way around), so it COULD be that everything works except the audio...
Is either that, or some physical failure... Do you know why the original PX-5 failed?
Thank you for valuable information. The USB handling system (GL850G) burnt in the processor of the processor module, but after replacing it, nothing changed. There is still a short circuit in the module that I have not located. As for the rest of your information, I have to analyze it for a while because I do not have much experience in software modification. regards
bogsie said:
Thank you for valuable information. The USB handling system (GL850G) burnt in the processor of the processor module, but after replacing it, nothing changed. There is still a short circuit in the module that I have not located. As for the rest of your information, I have to analyze it for a while because I do not have much experience in software modification. regards
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Click to collapse
What I was able to check. The sound from the multimedia certainly reaches the BU32107EFV sound processor - there is an analog signal at the processor's input, but the sound does not come out of it. I admit that I have no experience in programming - I only managed to update the MCU to the CSN2-D-1152020_114103 version - I understand that this applies to this processor module? So how do you find the right motherboard firmware? I am also asking for tips on how to install it. regards
bogsie said:
I admit that I have no experience in programming - I only managed to update the MCU to the CSN2-D-1152020_114103 version - I understand that this applies to this processor module? So how do you find the right motherboard firmware? I am also asking for tips on how to install it. regards
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Not MTCD, requested a moderator moves to [Android Head-units] forum.
This and other questions have been written about almost daily.
Note that the replies about "MTCD" do not apply.
Then please give me a link to solve this problem, because I am not English-speaking and it is difficult for me to navigate the forum here. regards