Android head unit doesn't turn on - Android Head-Units

Hey, I have a px5 head unit that was on android 6.0.1, I updated the mcu from version MTCE_HZC_v.75 to v.94
I tried to flash android 8 rom using an image I found online, so I booted the unit into recovery mode and selected update image, and then the unit restarted and never turned back on
before that, the USB port related to the unit received power, but now there is nothing
I tried to hold the reset button for different periods but it did nothing.
is there any way to try to turn it on without disassembling the whole thing?

Restore backup - connect device to PC and restore system using backup (if you backed up before flashing)
Android 6? That's old, most updates of yours only update to oreo 8.1. on PX5 device. Find updates and MCU files on 4pda Russian forum.

Anton TNT said:
Restore backup - connect device to PC and restore system using backup (if you backed up before flashing)
Android 6? That's old, most updates of yours only update to oreo 8.1. on PX5 device. Find updates and MCU files on 4pda Russian forum.
Click to expand...
Click to collapse
is there any way to make it boot/show any sign of life without taking it out of the car?

No , remove and connect to PC with USB cable

---UPDATE---
I have noticed that the touch buttons on the unit light up, but the screen doesn't
and I noticed that the lights respond to the reset button(if it's held for 10 seconds it flashes twice)
max8236 said:
Hey, I have a px5 head unit that was on android 6.0.1, I updated the mcu from version MTCE_HZC_v.75 to v.94
I tried to flash android 8 rom using an image I found online, so I booted the unit into recovery mode and selected update image, and then the unit restarted and never turned back on
before that, the USB port related to the unit received power, but now there is nothing
I tried to hold the reset button for different periods but it did nothing.
is there any way to try to turn it on without disassembling the whole thing?
Click to expand...
Click to collapse

max8236 said:
---UPDATE---
I have noticed that the touch buttons on the unit light up, but the screen doesn't
and I noticed that the lights respond to the reset button(if it's held for 10 seconds it flashes twice)
Click to expand...
Click to collapse
Search the internet for troubleshooting your device with those light codes, blinking twice means wrong bios or flash memory

Anton TNT said:
Search the internet for troubleshooting your device with those light codes, blinking twice means wrong bios or flash memory
Click to expand...
Click to collapse
Thanks for replying and helping, you have been very helpful
is there any website or source you know that may be helpful for troubleshooting?

max8236 said:
Thanks for replying and helping, you have been very helpful
is there any website or source you know that may be helpful for troubleshooting?
Click to expand...
Click to collapse
not that I know of, search ...

Related

Xtrons TD696A locking out if left off for an hour +

I removed the SD card from GPS slot and put another one back in it's place, from then it would not turn on.
The only way to restart it, is to unplug the unit, time differs for the plug to be out before it will boot up again to main OS,but when it does not boot, i can still reset and power to get into recovery.but if i load new image from there and reboot goes back to dead. Unplug again and will boot and run as normal until you turn off for some time then back to beginning again.
Any ideas as baffled, even got firmware from xtrons to upload fresh copy to the unit, still the same out come.
may be time to send back if i get no luk
raggatwins said:
I removed the SD card from GPS slot and put another one back in it's place, from then it would not turn on.
The only way to restart it, is to unplug the unit, time differs for the plug to be out before it will boot up again to main OS,but when it does not boot, i can still reset and power to get into recovery.but if i load new image from there and reboot goes back to dead. Unplug again and will boot and run as normal until you turn off for some time then back to beginning again.
Any ideas as baffled, even got firmware from xtrons to upload fresh copy to the unit, still the same out come.
may be time to send back if i get no luk
Click to expand...
Click to collapse
Hi,
Have you tried entering factory mode on successful boot, reviewing and then saving?
Also would you please post official firmware as would be beneficial to myself and others. What version is this - found in about machine?
Happy to help.
Cheers,
Marchnz
marchnz said:
Hi,
Have you tried entering factory mode on successful boot, reviewing and then saving?
Also would you please post official firmware as would be beneficial to myself and others. What version is this - found in about machine?
Happy to help.
Cheers,
Marchnz
Click to expand...
Click to collapse
yeah done that. no joy still doing the same but have noticed now, that when in recovery mode that android is on his back with a red triangle on top, so to me looks like MCU mite be corupted so looking to reflash when i can get a match (MTCB-HZC-V2.69) or something that will go in.
as for the firmware image as soon as i get 10 post's ill up it for all to use...
cheers buddy

Help - Unit on loop...

Hi
I recently bought a Joying UMS01N2 - 2GB 7" Single Din unit... I had previously posted about recommended upgrades, and was successful in doing some basic mods...
I changed the boot logo to a custom , and was then playing around with the bootanimation.zip file to get a custom boot animation (duh)... however, I may have messed something up because now the unit starts, shows the custom boot logo, and then goes to a lit black screen - almost as if in an endless loop... it will not load onto the launcher/app and stays as a black lit screen... I have tried to recover by restarting, and long/short pressing the PWR and RST buttons, but nothing is allowing a reboot/recovery...
Any advise?
I am running Android 6 as per the latest factory ROM (unit received in August) - not updated in Sep to recent update posted on the joying page
Thanks!
I would try to make a "blind" reflashing by attaching flash drive with latest FW.
How exactly is that done? Thanks in advance
Just connect flash drive containing unzipped FW files. Optionally do a soft reset with a toothpick into RST hole. Then wait. Hopefuly reflashing can wipe those boot animations for good (which I am not quite sure of).
As to me, I can not see any point in installing boot animations which under normal conditions one is not going to see on his/her HU screen ever. Only if something wrong happens and some sort of reset performed. Good reminder would be to me what a "beginner" I am
*Needless to say that USB flash drive should be error free irrespective of formatting option.
Would you not see the bootanimation every time the car is started? I say every time since I will probably only drive once a week (weekend toy) and I believe the Joying unit shuts down within 3 days of going into standby...
I will try to reflash using a USB... will post back if I need any further help... Thanks!
It worked!! Thanks!!!
I was able to reflash with a soft boot using the Sep 1 firmware... all my old apps are still there, but I will test them out later... for now the only issue I have is none of my left panel buttons on the screen are working anymore? I have a single din detachable screen with a column of buttons on the left side (power, home, nav, and volume)... and none of them respond to touch?? Is there a setting I need to adjust for this?
There is in settings - something like MCU HW buttons (do not remember exactly, may not contain "HW", but does contain "MCU" and "button"). Should work.

Joying JY-VL130N2

Hello all ,
I am facing a problem with my Joying Head unit JY-VL130N2.
I tried to update the system from website with the latest file ( carjoying.com/blog/joying-head-unit-after-sale-support/59.html ) , but unfortunately the installation was not successful , message coming that "System has not enough space ". Please see below photos .
drive.google.com/open?id=1FE6BekfeumBxuy3dN7JD5oNgki3QEwpH
drive.google.com/open?id=1_2-OQStRCGlCYpGxZbUGE1fsyYApX22i
drive.google.com/open?id=1xqItQ2XKMHNuUAPnA_7FaqGlyiyNCRSh
I tried to reset the headunit through the small button on the right bottom side , unplugged and re-plugged the USB stick , same message after. Tried as well with three different USB sticks (FAT32),same thing . I wrote a few emails to Joying support team , but no success until now as they keep telling me to do factory reset and then update again , which I cannot do it as the system does not load at all.
Can anyone please help me to solve this ?
Many thanks
Do you have lots of 3rd party apps in stalled? Do full factory reset and internal storage clean, then repeat flashing FW.
See edit's FAQ thread for details:
https://forum.xda-developers.com/android-auto/android-head-units/intel-sofia-to-micro-tutorials-qa-t3616074
Hi ,
Can you please tell me how to do a factory reset and internal storage clean as the head unit is not loading into Android system ? Many thanks
Oh, that...
1. First I would leave HU ON, maybe pressed reset and left (no sticks in USB). There mighg be a chance of magic self recover happening after several unsuccessive boot.
2. While performing step 1, I would search this forum for some key combination/long reset press or something of this kind followed by purple text output - only today have seen this instructions here or on carjoying forum, but can not find it again.
3. Continue to press Joying team for a solution.
ste2002 said:
Oh, that...
1. First I would leave HU ON, maybe pressed reset and left (no sticks in USB). There mighg be a chance of magic self recover happening after several unsuccessive boot.
2. While performing step 1, I would search this forum for some key combination/long reset press or something of this kind followed by purple text output - only today have seen this instructions here or on carjoying forum, but can not find it again.
3. Continue to press Joying team for a solution.
Click to expand...
Click to collapse
1) like ste2002 says: be patient. It can take 20 minutes, but that is in case your system is correct but had 3 unsuccessful boots. But in this case when the unit already mentions that the update was unsuccesful, it will probably not work, but it is always worth a try as it is the "laziest and easiest" method.
2) The reset option is with a "pointy" thing in the reset hole until the boot logos appear. Then reset again. After 3 uncompleted boots this early in the process, the system will go into the recovery boot, which are the purple leds. Use this purple led boot to connect at that moment your usb stick with the firmware.
Have you tried to re-download the update rar file again? Maybe it got somehow corrupt.
How big is the file Allapp.pkg? It should be 302,066 KB (~295 MB)
In case this does not help...
You could experiment with contents of file SQLSOFIA.
Since Feb 2017 it contains
Code:
mass
twipe_all
#make_updates
Before that it contained only
Code:
mass
No idea if this could help to make sure that the system partition is reformatted before the content is written there.

How to fix a problem of boot loop in joying px5 4gb 32GB system?

I have a joying px5 4gb 32GB system
I tried to do an update for Android 8
And the system got stuck in the boot loop
The system loads the company logo and then reboots itself
How to fix the problem and reinstall the system
As Joying has several kind of units having different kind of hardware it is easily to flash the wrong firmware.
ALWAYS mention which unit you have and which firmware you (tried to) flash.
Your info is "non-info".
Now blindly assuming you have a FYT unit using the latest firmware for the right resolution you can try:
Put a USB-disk with the firmware in the unit. It might be picked up immediately after reboot.
If not: Put a USB-disk with the firmware in the unit and reset the unit with a pointy thing like a needle.
If that does not help: Put a USB-disk with the firmware in the unit and reset the unit. When the boot logo appears, immediately reset the unit. do this 3x until the leds start blinking pink. Then it will go into forced flashing the unit (if a usb-stick is inserted).
surfer63 said:
As Joying has several kind of units having different kind of hardware it is easily to flash the wrong firmware.
ALWAYS mention which unit you have and which firmware you (tried to) flash.
Your info is "non-info".
Now blindly assuming you have a FYT unit using the latest firmware for the right resolution you can try:
Put a USB-disk with the firmware in the unit. It might be picked up immediately after reboot.
If not: Put a USB-disk with the firmware in the unit and reset the unit with a pointy thing like a needle.
If that does not help: Put a USB-disk with the firmware in the unit and reset the unit. When the boot logo appears, immediately reset the unit. do this 3x until the leds start blinking pink. Then it will go into forced flashing the unit (if a usb-stick is inserted).
Click to expand...
Click to collapse
I have JY-UOS03P4V/
u can bring me the file?
shlomifi said:
I have JY-UOS03P4V/
u can bring me the file?
Click to expand...
Click to collapse
I assume you mean JY-UOS03P4
And which file?
You need the top firmware download from this page: https://www.joyingauto.com/blog/
this one if you have indeed a JY-UOS03P4
My system came with Android 6
I tried to upgrade to 8
It seems that the files that are still sitting in the system are of version 6 also where the same steps are performed?
Where can I download the version 6 back to restore the system and then upgrade it?
shlomifi said:
My system came with Android 6
I tried to upgrade to 8
It seems that the files that are still sitting in the system are of version 6 also where the same steps are performed?
Where can I download the version 6 back to restore the system and then upgrade it?
Click to expand...
Click to collapse
Contact Joying: [email protected]

Help: how can i enter recovery mode for this unbranded head unit ?

Hello guys. First of all, I've been searching for weeks for any similar situation with mine but couldn't find anything. I have Unbranded Chinese Android Head Unit running Android 4.2.2. with physical button and a reset pin. I tried tonnes of ways to get to the recovery with any possible method and nothing seems to be working.
can anyone show me how to get into recovery or force hard reset on the unit ?
I have attached a few pictures of the Unit info and the circuit board.
i tried to connect a USB keyboard to my Unit and pressed PrtScr + "E" but my unit did not show factory rest option. you can see what happened in the attached video
i will be thankful for you, if you tell me how to get into recovery mode of make a hard factory rest or install a new ROM.
Thanks in advance .
Post MCU version
marchnz said:
Post MCU version
Click to expand...
Click to collapse
the unit stuck on boot logo so i don't know MCU vesion. i just want to know how can i boot the unit in recovery mode
Emad Islim said:
the unit stuck on boot logo so i don't know MCU vesion. i just want to know how can i boot the unit in recovery mode. i attached a a picture of the chip on main board of the unit maybe this can help
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Click to collapse

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