Database Users

Android Head unit still in boot loop even after update

Hi all,
Allow me to apologies if I post in the wrong thread.
Recently I bought "Bosion 420" head unit from Aliexpress
800x480, quad core, 1G RAM 16GROM. Android 4.4.4
It was working fine for first week. I download and install Sygic app. That's the last thing I did. After next time I start the unit, the unit loop in android boot logo
.
I contacted the seller and he send me the ROM to update. He asked me to put in the ROM sd card and boot up. It automatically goes into progress bar. And it run till 100%. After 100%, the screen become blare out and nothing happened. But when I took off the card and reboot, it goes back to the android boot loop still. Seller is not responding me anymore and its already out of time for dispute so I am out of options. Can somebody help me with that?
Thanks in advance!

Geminra said:
Hi all,
Allow me to apologies if I post in the wrong thread.
Recently I bought "Bosion 420" head unit from Aliexpress
800x480, quad core, 1G RAM 16GROM. Android 4.4.4
It was working fine for first week. I download and install Sygic app. That's the last thing I did. After next time I start the unit, the unit loop in android boot logo
.
I contacted the seller and he send me the ROM to update. He asked me to put in the ROM sd card and boot up. It automatically goes into progress bar. And it run till 100%. After 100%, the screen become blare out and nothing happened. But when I took off the card and reboot, it goes back to the android boot loop still. Seller is not responding me anymore and its already out of time for dispute so I am out of options. Can somebody help me with that?
Thanks in advance!
Click to expand...
Click to collapse
wath version of the room is it ?? do you know ??

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
Click to expand...
Click to collapse

My Android 7 inch head unit stcuk on Android boot logo

Hi,
My android head unit stuck on boot logo, even i try to press refresh button it wont work. recovery mode is also not coming. how do i re install firmware using a flash drive? there is no specific name on the head unit since its a chinese one but it have a sticker that says
"7" TOYOTA T3L8035 1 + 16G IPS"

danuja01 said:
Hi,
My android head unit stuck on boot logo, even i try to press refresh button it wont work. recovery mode is also not coming. how do i re install firmware using a flash drive? there is no specific name on the head unit since its a chinese one but it have a sticker that says
"7" TOYOTA T3L8035 1 + 16G IPS"
Click to expand...
Click to collapse
May be you can find something by using this link to search for T3L.

Android head unit doesn't turn on

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 ...