Database Users

RK3066 flashed with bad mcu

Hello,
I have flashed my rk3066 7" (model s07) with a bad mcu, and he doesn't want to boot.
When i restarted device, i have a black screen only.... no access recovery (reset button power)
I need help for an issue...
Thank much.

You should still be able to get into recovery and reflash with a good MCU. Is recovery not working either?

War-Rasta said:
You should still be able to get into recovery and reflash with a good MCU. Is recovery not working either?
Click to expand...
Click to collapse
Doesn't work.
Only one bip when i press reset button, and that's all...

Suzuki Grand Vitara - M779 Head Unit PX5 Octa Core - stuck on Bootlogo

Hey guys,
I bought a Navigation System M779 (androidautoplayer.com) for Suzuki Grand Vitara from AliExpress one month ago.
At first, everything was fine and I was very happy about it. Nothing to conplain about.
Then I went on Holidays for about 14 days, in which the car wasn't used in any way.
Yesterday I started the car for the first time after Holiday, the battery still was fine but the radio did not boot. The screen stayed black and the Buttons did not light up.
After checking the Plugs on the back, the screen showed a Bootlogo, but got stuck.
I did not modify anything and everything was fine until Holiday.
Can you please help me?
Pressing reset did not change anything. Sometimes, selecting reverse does activate the rear cam. That's it.
I don't know how to enter Recovery or how to install the Firmware.
It is an Android 9 PX5 System. This is everything I know.
Kind regards
Robin

May be able to reflash firmware using this method - https://forum.xda-developers.com/showpost.php?p=79144579&postcount=2 assuming that the manufacturer posts firmwares on their site, or can provide it to you via download, email, etc.

Thank you for your reply.
I tried some Firmware-files, just to see If the head unit enters Recovery. This failed.
The manufacturer also replied to a Mail, telling me that they will hand me out a possible solution next week.
I will wait eagerly.

Hallo again,
unfortunately the manufacturer did not provide a solution to recovery my Head Unit.
I managed to get into the Recovery Menu and tried to wipe data, but this had no effect at all. Still stucking in bootloop.
The information given in Rcovery Mode are:
rockchip/rk3368/rk3368
9/PQ2A.190305.002/hct204281503
userdebug/test-keys
Recovery V9.0.5.
Supported API: 3
Can anyone please help me restore the Head Unit?
Kind regards
Fisatec

Fisatec said:
Can anyone please help me restore the Head Unit?
Fisatec
Click to expand...
Click to collapse
Did you try to disconnect the main connector from the unit and leave it that way for a few minutes ?
And then reconnect it again.

Thanks for your reply... But I think I did very stupid today and bricked the device.
Reagrding to this topic "forum.xda-developers.com/android-auto/android-head-units/head-units-rockchip-px5-mcu-csn2-t3912413" I flashed my device with "Fake Android 10 - July 6th 202007061156".
The flash ran smooth without any errors. But the screen seems dead now.
The buttonlights still turn on and do blink if I press the powerbutton for about 10s, but there is no bootlogo or anything at all.
I cannot enter recovery anymore.
**** happens?!?
Kind regards
Fisatec

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 ...