Askey ADT-3 Bricked? Can't access Bootloader or Fastboot

by Holpil

Hello,

I installed the Android 12 developer preview on my AskeyADT-3 yesterday to check out the features and any new services. After I was done I then installed the Google TV preview. Pretty swish UI.

Now today I've gone to flash the OS back to Android 11 using the stock ADT-3 image with the usual flash-all script.

After flashing and on re-booting the device, the Android 11 splash logo displays, but I simply cannot get it into the bootloader or fastboot. Holding down the button before power does nothing, and on powering up and connecting to a PC it connects and disconnects within a second.

I tried sending adb reboot bootloader/fastboot cmds in the brief time it connects to the PC but no success here.

Does anyone have any ideas or is my ADT-3 broken? I opened up the device and there's a 3 pin port but of course I don't have the kit to make use of it. The chip is an Amlogic S905Y2.

Thanks!

latinriky78

I'm not sure what they mean but according to the developer website:

""...you will not be able to go back to the previous Android 11 build without wiping the user data"

I guess you should get more help over there than in here.

https://developer.android.com/tv/preview

Askmetech

Can you plz tell the steps to flash Android 12 to askey adt-3

Kodi_Fan_Omicron

Just upgrade ADT-3 from the Sept.2020 image to the the latest July2021 and manually updated the image using a Linux machine. Input the INSTALL script manually to see what the problem was...

The Android 11R image's problem, from what I saw, was that the USB SERIAL wasn't registering on PC when you que <lsusb> cmd after done rebooting to the BOOTLOADER or FASTBOOTd, therefore acting like it wasn't connected. So make note of USB Serial number beforehand while connected through ADB, all that was needed was to force FASTBOOT to us use the device's USB SERIAL.

Example #cmd used while device booted to bootloader, with added cmd variable to list all connected fastboot devices as well:

fastboot -s 1234:5678 devices -l