Bootloop RK3566 MTCHR Help - MTCD Android Head Units Q&A

My radio no longer starts after an unsuccessful root attempt. I've been trying to get into recovery for days now with no success. Maybe someone has a solution how I can get into the recovery of the radio so that I can install the original firmware.
The radio is a Pumpkin AA0717B, MTCHR_HT3_V3.81d_2 MCU, Rockchip RK3566
I would be grateful for any help
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Use otg

marchnz said:
Use otg
Click to expand...
Click to collapse
Thank you for your prompt reply. Have the cable (USB-A USB-A) connected to the PC. The device is still in a bootloop and is not recognized when switched on. Have tried to achieve something via RST button, unfortunately unsuccessful. Am I doing something wrong?
Edit:
Maybe the pictures of the board will help. Have these attached

Hi, check out my OTG thread

marchnz said:
Hi, check out my OTG thread
Click to expand...
Click to collapse
Hey, do you mean the thread with the homemade OTG cable?
[PX3 & 5] [OTG] - No Headunit Mod, recover or flash a SOM with a simple USB cable
"Factory" Recovery for MTCx PX3, PX5 and PX6 SOM. Finally - OTG for all without modifying your head-unit. With only basic electronic/soldering skills, get OTG and fearlessly flash or recover a 'bricked' MTCD/E (HCT printed on SOM) Rockchip PX3...
forum.xda-developers.com
If so, do you know which points I have to solder to so that the board is recognized on the PC? Since this board is very different from the PX3/5/6 board on your pictures. Here are some more pictures of my PX30 board.

Related

Brick px5 T_T help ME

hi, sorry I'm Italian.
I was going to install android 8 but something went wrong.
the stereo does not start, I tried to go into recovery but it does not go.
I tried to make the usb SD_Firmware_Tool with the original update image but it does not work.
I tried to follow the guide with the welds but the pc does not read anything.
my autoradio e chip:
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I followed the guide, link below.
I have unsoldered the two feet gl8506.
I removed the pin to ctl_recovery and connected to 3.3v
I welded usb like photos.
but the pc does not detect anything fueling everything.
https://forum.xda-developers.com/an...tions-development/px5-stuck-bootloop-t3635412
Nexet said:
hi, sorry I'm Italian.
I was going to install android 8 but something went wrong.
the stereo does not start, I tried to go into recovery but it does not go.
I tried to make the usb SD_Firmware_Tool with the original update image but it does not work.
I tried to follow the guide with the welds but the pc does not read anything.
my autoradio e chip:
I followed the guide, link below.
I have unsoldered the two feet gl8506.
I removed the pin to ctl_recovery and connected to 3.3v
I welded usb like photos.
but the pc does not detect anything fueling everything.
https://forum.xda-developers.com/an...tions-development/px5-stuck-bootloop-t3635412
Click to expand...
Click to collapse
ok I managed to connect to the nand, now I just need complete firmware, but downloading it from here and password protected.
https://yadi.sk/d/umCvHqCDzHccr/RockChip PX5 Android 8.0/GS
HCT version

Win10 drivers needed for N8000

Hello.
Would you please be so kind to point me to correct driver for a GT-N8000 on Windows 10?
I want to flash a custom rom on it and it seems I can't make it work.
Every time I plug in it says something like in the screenshots attached.
Tried:
- installed Samsung USB Driver (v1.7.43.0)
- on 2 dif laptops
Thank you.
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ToothFairy' said:
Hello.
Would you please be so kind to point me to correct driver for a GT-N8000 on Windows 10?
I want to flash a custom rom on it and it seems I can't make it work.
Every time I plug in it says something like in the screenshots attached.
Tried:
- installed Samsung USB Driver (v1.7.43.0)
- on 2 dif laptops
Thank you.
View attachment 5231755View attachment 5231759
Click to expand...
Click to collapse
It could be, that your cable / dock connector is dirty or faulty.
If your could test another cable (or buy one), this would be the first step I would do.
U're right, thanks!
I have another cable, tried that and it worked!
Thanks! Never crossed my mind to check with another cable since it's the original one.
One more thing html6405 please!
Which of rom's from your page would you recommend in terms of stability and higher vers of android?
Thanks again.

Diy Zebra tc72 charger.

Need help identifying positive and negative pins on a zebra tc 72 . Reyes with multimeter do find positive and negative terminals with no luck. Can anybody help me how to make a diy charger
Hi, on Pin1 you have GND, on Pin 3 +5.4V.
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thank you any chance you know how to install a sim card slot in it? or unlock the bootloader
On TC72 not possible to install SIM card. TC77 has this funcionality. For second question, I can't share this info.
autoid_OS said:
Hi, on Pin1 you have GND, on Pin 3 +5.4V.
View attachment 5403717
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Click to collapse
Hey autoid_os
I have the TC77 with identical Port. I want to make a USB cable for ADB/Fastboot Connection.
To you know what the Data pin's are in your Picture?
For this new Port I don't find any technical information.
Thanks in advance
Blizzrar
But I think better is to buy cable for few usd
autoid_OS said:
But I think better is to buy cable for few usd
Click to expand...
Click to collapse
Yes, this is what I did for the USB cable.
I have another question, do you know how the serial cable works for the TC7x series?
I mean the part number CBL-TC7X-SERL1-01
It seems to connect to the same connector but the serial connector seems to be very big so I guess it is using some circuit like USB to serial for computer? I cannot find it anywhere to buy it that's why I am asking.
Can some one make me a charge cable and send to me.
I do not want to pay $100.0 of $30.0 for the cable the tc70.

Any idea how to unbrick MXQ-EP-2-V1.0

Please help with how to unbrick MXQ-EP-2-V1.0.
Thanks
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Is it softbricked or hardbricked?
xXx yYy said:
Is it softbricked or hardbricked?
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Not sure of the difference the two, maybe you can explain but there is no lights
Geek17 said:
Not sure of the difference the two, maybe you can explain but there is no lights
Click to expand...
Click to collapse
Want to bridge using paper clip
Hardbricked means a hardware component got defective, softbricked means either Android OS or device's bootloader got corrupted.
xXx yYy said:
Hardbricked means a hardware component got defective, softbricked means either Android OS or device's bootloader got corrupted.
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Ok thanks I understand now. So with device if I press the reset switch within the av port and connect USB cable nothing happens. Software doesn't detect any bootloader.
Hi, if still works, you must to short circuit the point that show you in the picture, the board go to maskrom mode. (the secuence must be, press an hold reset button, keep and hold the shortcircuit and connecto the usb male to male on to computer), i use RKdevtool for install RK322XMiniLoaderAll_V2.32.bin and reboot. Now is in LOADER mode, so you can flash a firmware normally. Any doubts just send it.
My BOARD.
MXQ-EP-2-V1.0
RK3228A
8GB/128GB
WIFI SV6152P

HCT SOFIA 3GRW stuck in bootloop

Could someone please give a old geezer a hand fixin this thing. Its been a few years since I've mucked around with it and not sure what new stuff all the cool kids are rockin these days. I do have a usb thats hooks to the back I do hear the windows sound but gives some sort of error in device manager & nothing I've tried will connect to it. Weird thing is this is the screen when android is supposed to boot
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Can I try using a stm32 programmer to the test pins on the main board ? If so which pins I have gnd M_RST SWCLK SWDIO & 3.3V on the main board and the programmer has 3.3v rx rst IO0 en IO2 tx gnd
Cheers
Is MCU isn't android.
Refer my threads https://forum.xda-developers.com/an...px3-5-headunit-mod-recover-flash-som-t3766892
marchnz said:
Is MCU isn't android.
Refer my threads https://forum.xda-developers.com/an...px3-5-headunit-mod-recover-flash-som-t3766892
Click to expand...
Click to collapse
Thanks buds but the link to the driver is stale & not sure what its called do you have a name or a good link ? Oh and do you know where the maskrom short would be ?
TY
Also does anyone know where these pins go to on the board ? The traces are gone & shining a high powered light thru the board doesnt show anything that they were connected to..

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