Hi all
the text below is an email exchange between me and joying support. Besides the obvious language barrier I also don't think they are willing or able to do much troubleshooting. I was wondering if anyone here would be kind enough to point me to the right direction.
The problem basically has started after two or three unsuccessful root attempts that most likely left some script that I cannot erase with a factory reset. It could also be one of those very unlucky coincidences where the problem appeared then but rooting was not the cause.
It looks like the unit powers up normally after a period of complete inactivity that has to last at least a few hours and then everything is normal for about one hour. Then it shuts itself off again but will not restart for a few hrs. i didn't get a chance to troubleshoot further and provide detailed timing but I don't think its a heat issue as described elsewhere
After I rooted it successfully I installed the "joying extra tools" but was not really able to use the app.
any help would be appreciated
thanks
Hi I just installed my US-JY-UL135N2 a few weeks ago. It was working fine for a few days but had the same problems described in various posts.
I tried to install superSU in order to install a complete backup application (titanium backup) following the directions from this forum (cant post link yet) first couple of times I was unsuccessful (could not get permission to write the files). After that it started rebooting at random times and sometimes it wont wake up for a few hrs. A couples of days later I rebooted the unit and tried again to root and this it worked. The crashes did not stop so I did a factory reset from the settings menu. When that was completed I looked at the applications and superSU was still there and the crashes continue. I think that maybe some incomplete files have remained when I tried to root the first time. What else can I do? If I did a factory reset shouldn’t it wipe everything? Also should I upgrade from 5.1.1 to 6.0? how? Will that solve the problem?
Do you have support in the USA? Can I talk to someone here?
Dear friend,
Thanks for your email .
Do you mean that the head unit will be crashed after you download the backup application ?
we think that maybe the application is not much more compatible with our head unit .
could you try to directly unload the SuperSu app ? and then check whether it will still crashed ?
and could you show a video to us how it crash ? so that we can know more ?
Hope your positive reply and then we will help you .
Thanks
candy
Thanks
Candy
No I never got a chance to install the application. The unit is now dead it does not start at all so there is noting to show. Is there is a way to make it start? If there is I can uninstall the superSu and let you know if it helped but for now I can't do anything
Dear friend,
Thanks for your reply .
please noted :
You said that you have not installed the application , so how your head unit go dead ? we are a little confusing .
could you please explain what you have done before then the head unit go dead ?
because you also said the Supersu is there , if you have not installed it successfully , bow it will be there .
we hope your kindly reply then we can know that how to help you .
I Said I did not install the backup application (titanium backup) but i did install superSu.
I tried to root the unit but failed a couple of times. The third time I rooted it but then It started random crashes and reboots so I didn't get the chance to install anything else. Can you just tell me if there is a way to restart it or do I have to send it back for warranty repair?
hope you can have a try and feedback us .
Candy
Add joy to your car with Joying !
Because sometimes root also will make mess the head unit .
you can try to update the head unit and then check whether it will solve your problems .
here is the update link : sorry cant post links yet
please try to update (2017-7-7 )
please check whether it can update successfully .
Sent: Wednesday, August 09, 2017 7:03 AM
Subject: Re: US-JY-UL135N2 crashing and wont recover for hours.
Dear friend,
Thanks for your reply .
Sent: Wednesday, August 09, 2017 7:23 AM
To: 'Joying support'
Subject: RE: US-JY-UL135N2 crashing and wont recover for hours.
Hi
The unit came back on today by itself after about 15 hours. I uninstalled superSU and reset it again. I don’t know if its going to be stable this time but I will let you know in a few hours
The update you’re suggesting is 6.01 and I read that there is problems with it. Isn’t it better to stay with 5.1.1?
Where can I find the latest file for 5.1.1?
From: Joying support
----
Date: 8/9/17 11:38 PM (GMT-05:00)
Subject: Re: US-JY-UL135N2 crashing and won’t recover for hours.
Dear friend,
so we suggest that you go to update the system to android 6.0 .
because it will enter the recovery interface . please check whether it can .
Hope your try .
Thanks
Candy
Ok so I left the car off for a few hours and just tried it again. I turned the car on and the unit DID NOT TURN ON AGAIN. It just wakes up whenever it feels like it.
I can’t do anything to it until it turns on again. I there a way to reset it completely?
here is the blog on how to update the android 6.0 : sorry cant post links yet
(please update to 2017-7-7 )
you update the head unit according to the blog , then it will occurred the recovery interface .
Hope you can try .
Thanks
Candy
How do I make it enter recovery?
-------- Original message --------
Ok I just I did the update 2 hrs ago. Then I drove for about 40 minutes and shut off the car. Went back 20 minutes later and tried it and it turned on without problem. I just tried it again now and it won’t turn on. I don’t know what else to do at this point. Is there a way to get logs when it turns back on? It usually turns back on after 6-7 hours
From: Joying support
Sent: Thursday, August 10, 2017 6:25 AM
To: Spiro S
Subject: Re: US-JY-UL135N2 crashing and won’t recover for hours.
Dear friend,
additional observations/thoughts
I just noticed something else. When I start the car in the morning to go to work the headunit is always on immediately. Does this mean that it stays on after it restarts itself at some point at night ? or does it boot up that fast? (less than a second)? I dont remember ......if this is a heat issue and it started at the same time as when I was trying to root it wouldn't that issue kind of go away when I installed 6.0.1? its supposed to have better cpu management right?
idlt said:
Ok I just I did the update 2 hrs ago. Then I drove for about 40 minutes and shut off the car. Went back 20 minutes later and tried it and it turned on without problem. I just tried it again now and it won’t turn on. I don’t know what else to do at this point. Is there a way to get logs when it turns back on? It usually turns back on after 6-7 hours
Click to expand...
Click to collapse
In my opinion it's the heat that's causing the problems combined with with the fact that maybe some of the electronics gave out. It returns back to life when it's cool enough.
Either way make a video demonstrating the issue, complain and demand a new unit under warranty.
In the meantime you can install an app that can monitor the CPU temperatures
Like :
1. https://play.google.com/store/apps/details?id=info.kfsoft.android.MemoryIndicator
2. https://play.google.com/store/apps/details?id=com.yanyan.cputemp
That can display the temperature at all times no matter the app that you are in
Use this app to test the stability and temperature under heavy CPU load : https://play.google.com/store/apps/details?id=com.into.stability
Check the temperature it reaches before blacking out.... it could be the CPU giving out on high temps or maybe something else... just a thought...
Thank you for your reply I will try to work around its schedule and do that. I just went and disconnected the power completely so it stays cool until I'm able to work on your suggestion. Hopefully after work it will start up normally and I can sit there for an hr looking at the temperatures (not happy bout that for a brand new unit) .
the funny thing is that it gives out when the car is off so the unit should be on sleep. How can the temps go up high enough to shut it off when its not even doing anything? The dormancy setting is on so I was assuming it went to sleep.
here is the reply i got from joying below. Basically suggesting to do what I have already done to it
Also some people suggesting sending them a video but a video of what? when its on its running ok when its off its off for hrs and when it comes back its normal again.....it would be a veeeery boring video
Dear friend,
Thanks for your well-cooperated with us together .
please noted :
1) we think that the files on the head unit maybe mess after your root the head unit .
2) So now the head unit can not turn on again , and it may turn back on after 6-7 hours ?
3) if yes , please try to do following processes and check whether will be workable for your problems :
1. Download the update file from window syetem computer, then upzip it and copy the files into
SD card without any folder. Then please insert the SD card into GPS maps card slot.
The files also will be the same updated file :
2. Put ACC wire(red one) and BATT wire(yellow one) together, then connect it to positive power supply 12V;
Put GND wire(black one) to GND.
3. Turn on the head unit,it stuck on JOYING logo, please click "reset"( first time).
4. After the first time reset, the item will restart and it stuck on JOYING logo, please click" reset"(second time)
5. After the second time reset, the item will reboot and it stuck on JOYING logo, please click " reset"(third time)
6. After the third time reset, please don't power off the head unit and wait for a while to update the head unit.
Then watch this video to learn how to update the system: xxxxxxxxxxx
Please check whether it can appear the "Joying logo " and go on the processes we suggested .
Thanks for your time
Candy
Add joy to your car with Joying !
Please have a try . and then feedback us how it going on ?
Thanks
Candy
Oh man... you made a big error telling them that you rooted the unit... rooting had nothing to do with the behavior at hand but it's enough to give them something to talk about and delaying to delivering a new unit.
What you should have done before telling them you have a warranty problem.
1. Start the default Joying File Manager go to the internal storage, select all, delete
2. Take out all the SD card and USB sticks and DON'T put them back
3. Reset the unit to defaults, that does not remove root but removes all the apps and settings
4. if the unit is still unstable and it seems related to heat... wait till it cools down
5. prepare a stick with the firmware that you have already on the unit for a reflash
6. flash the unit - now the root is gone - everything is back the way it was when you bought the unit
7. test for stability... if you still have issues that means it's not software it's hardware.... warranty time.
Thanks a lot man!
You have no idea how many times I searched for a way to restore back and wipe all data because I could still see the garbage in there even after a factory reset but couldn't find out how to.
I will follow your steps and then call it a day because it would have to be a heat issue at that point
I ts funny though that it didn't show up prior to root.
On the rooting issue now. I thought they provide a link on "how to root" on their blog....I didn't think I was doing something wrong by just rooting it. I didn't really get a chance to use the root access anyway! You would think they would provide a way to do a full back up in case something went wrong this way we didn't have to resort to rooting
thanks again. I will update the post when I have news
BTW does anyone know what temp the CPU should be running at? or whats the max before it shuts down?
idlt said:
BTW does anyone know what temp the CPU should be running at? or whats the max before it shuts down?
Click to expand...
Click to collapse
Search!
The past weeks have been full of this in 2 threads: the upgrade thrad and the heatsink thread.
And edit, who also answered you in this post, added even more on this in his Q&A thread, which you obviously also missed.
Update .....and some thoughts
@ surfer63. Point taken....I realize I was been lazy. Please accept my sincere apology for taking all the work you guys do for granted.
I don't have much to contribute but here is an update on my issue and also some thoughts on what to do in order to be able to enjoy the best of both worlds _Reliability and function_ in a car radio experience.
BTW. I ripped out my very expensive but very restrictive factory rocford fosgate navigation/camera/Bluetooth/overhead console/back up sensor/ infrared headphone ..blah, blah, blah system in order to install this one, so I had high hopes that I could get this to at least function somewhat reliably but I've been driving for two weeks without a radio or Bluetooth for my phone.
anyway...
Joying USA finally came through with a solution. They offered to send me a 6021 to replace my most likely burned out 5009 unit _new one is on the way_
I had to pay shipping and I was charged $300.00 for the unit but I will be refunded $200.00 when I send the other one back. I'm happy that at least I will have a radio again and have learned my lesson about how real a Chinese warranty is. I hope I wont have any problems getting my $200.00 refund ( I have only used the old radio for about 2 weeks before it burned out)
I chose to "upgrade" to the 6021 _ It would be the same cost for either unit _ because I was told it is more stable after the re-design of the main board and the LCD board. I'm hoping that the overheating issue will be less of a problem with this one although I read reports to the contrary....
I also took surfer63's advise and read up a little and I now know that there is no way to rely on a Chinese android unit to replace a factory head-unit or even a brand name one for that matter because the stability is not there yet (my opinion). We should probably be thankful though that at least Joying and others are not afraid to try and provide this alternative.
I also read up on all the newest high end brand name head-units and nothing has changed since last time I looked. They are all crippled, restrictive and proprietary for the most part when it comes to peripherals. They offer really good sound quality but the ones with the most features also suffer from software and hardware glitches though less frequent than the Chinese ones. The Chinese android units do offer a glimpse into the future but my experience is that they are not at all reliable or fully functional. I believe that in a car environment the most important functions are ease of use, radio reception and phone/Bluetooth quality and reliability (terrestrial radio is still more reliable than internet radio for people that want to listen to the news or traffic updates or local events and such...) . Once that's covered then I guess sound quality, internet connectivity for online content, online navigation and voice commands as well as other similar features become important.
I don't think there is one single head-unit out there that covers all that but maybe not all hope is lost.
My solution is to purchase a single din head-unit with a reliable radio, good sound quality, stellar quality hands-free phone Bluetooth function and maybe USB phone connectivity. I have a spare space in my console so I will install that in there and install the Joying unit _or the next android experiment_on the double din space above. If space is not available on the console one could probably hide it in the glove-box or under the dash.
when the Joying dies again _notice I wrote "when" not if... I can revert back to the simple one until I replace it with the next upgrade or maybe with a tablet. They now make some nice built in mounts for them https://soundmanca.com/
I haven't had time to research the single din unit yet but it most likely will be one of the major brands. maybe this one https://www.amazon.com/Pioneer-DEH-...ud-20&linkId=644693c89a21ea33f675e3023ce5cc4b
I will try to figure out a way to make them both work through the same amplifier and be able to use the hands free function on the single din one, navigation and backup camera on the android and have the choice to play music from either one. I'm not sure how to do that yet but looking into it now. Maybe I can use the Aux input or another "source" input on the single din one which could also be wired to the factory steering wheel controls so that when I answer the phone the AUX switches off and the hands free takes over. I think when the phone call ends it would have to switch back to AUX . I will try to update this post when I figure this out and in the mean time I welcome any thoughts or suggestions
Thank you all for your support
Hello everyone!
I've recently bought and setup my brand new and shiny Xtrons TE103AP 10.1" HU and unfortunately came to realize one very ugly truth about this particular unit.
You see, although encrypting your device is an option in the OS, it simply does NOT work (I have an email from Xtrons confirming this) and locks up the device completely, so that the only way to recover it is to do a FULL factory reset
Now, you can imagine what would happen if your HU got stolen from your vehicle, with all of your email accounts logged in, not to mention your storage for example (Drive, DropBox, Box, etc.)
Having to type in a PIN or a password, everytime one starts a car, is plain stupid and irritating. And not to mention the automatic screen lock.
I want to keep my eyes on the road and not mess with logins, PINs and unlocking my device every so often while I'm driving and/or starting my vehicle.
On the other hand, if/when the device gets stolen it loses power completely and is therefore booted from scratch (cold boot vs Oreo's "smart sleep mode"), so by design the OS will prompt for a PIN/Password to unlock the device and decrypt the device.
And that is where the problem lies. Apparently, quote: "these units cannot be encrypted and encryption will not be added to them, even through subsequent firmware/OS upgrades", according to Xtrons technical support.
So my question is, is there anyone familiar enough with these units to answer whether there's another ROM that CAN be loaded onto the existing hardware, that will have the same functionality as the stock MTCE_GS_V2.78_3 ROM + support device encryption, or is this really some kind of a hardware related issue and we're basically stuck?
Any feedback and assistance on this matter will be greatly appreciated.
Thanks!
Any thing here?
Try a search, thoroughly discussed before, especially locking device with pin.
I'm wondering if anyone here has dealt with an ATOTO A6 bootlooping after doing playstore updates. From what I could gather from their support site, it's fairly common and usually a reset fixes it.
Well I have this problem as it stopped booting after doing a bunch of playstore updates. Did them one day, let the truck sit overnight and next morning turned it on and unit boots up to the first boot image and that's it. Never goes further.
I've been trying to work with ATOTO for a week now, and I think they are truly clueless. They told me I needed the remote control and it could reset the system. They acted like it would start a full blown system recovery and then I'd have a "fresh" unit again. So I followed their commands after getting the remote in and nothing. It acts no different than hitting the reset button on the front of the unit.
Has anyone gone through this? I have a feeling I will have to ship it to them all the way on the other side of the country, but it's been less than 6 months. I really can't see having to ship this out to them every 6 months to be fixed. It seems to me that there should be a way to force a full system recovery just like any android phone or tablet I've ever owned or messed with when something goes wrong. I don't have a male to male USB cable to mess with it myself.
So I am really just hoping someone has already been through this and figured it out and my google fu sucked and the countless threads I've read, I've just missed the right one
One and a half months ago, I have this China Android Head Unit 8227L (YT9216B_00002_V004_20190729)
In the first month of using the unit, the unit goes to sleep when i turn off the car after drive, in my next drive it will wake from sleep without going through boot process.
However starting from last 2 weeks, the unit start from book process when I start the car. Even if it is just a 20 mins stop in between my drives, the unit will start from boot.
Is it any setting problem, or probably i need to do a factory reset?
Your unit isn't an MTCB, so likely your question will be missed. (Thread moved to Android Head Units)
Try searching for "8227L" to query information and thread for your unit.
Had my S8 now just over a week. I'm finding that the Bluetooth on the unit is starting to fail to initialise when started. Seems to get gradually slower to initiate Bluetooth until it fails to start altogether. So no phone connection for calls, contacts etc. When I attempt to reset in under the Bluetooth 1 app the device name field is blank and when I try and reset it nothing happens. I have to perform a hard reset before it comes back.
Then, when I reconnect my phone, it proceeds to nuke my contacts and I'm forced to restore them from Google. Absolutely awful.
Not looking good, this has now happened 3 times and each time it's left me stranded at the side of the road and scrambling to fix it.
Worth getting it sent back to China? Could this be a hardware or firmware bug....I think I'm shafted. Should've gone with a Kenwood all along... So yeah it's looking like a big fat AVOID for these head units.