Hi guys, I just received this Teclast M30 (version M5P3) and wanted to flash a custom ROM on it. But I'm now stuck on a bootloop.
- Went to developer option, allowed Bootloader unlocking.
- Unlocked the Bootloader without any error via:
fastboot flashing unlock
- Flashed TWRP (found on this thread) without error on fastboot:
fastboot flash recovery twrp-3.3.1-teclast-m30-20191201.img
- Flashed a GSI (ARM64 A-only) ROM and no error occured during flashing.
(I used the "Android 9 - Havoc-OS v2.9" ROM on this link => github.c*m/phhusson/treble_experimentations/wiki/Teclast-m30-%28MT6797x-helio-x27%29 )
fastboot flash system Havoc-OS-v2.9-20190914-phhgsi_arm64_a-Official.img
Then when trying to boot after flashing, I'm stuck on a bootloop.
It shows the Teclast Logo with some text saying it's in Orange State (= bootloader unlocked) and then go to a screen with an Android Logo and a message saying: "No Command".
The problem is this screen stays only for about 3 seconds, and then the screen become black for 1 sec, then the "No Command" screen appears again for 3 sec, then it disappears again, endlessly. Pressing "Power & Vol+" or "Power Button & Vol-" on this screen does nothing, I just can't enter fastboot mode as it keep looping and do not stay on the "No Command" screen.
The "Reset" button on the tablet seems useless and when pressing it, it only shut down the tablet and stops the loop. I tried pressing it for long periods like 10-20-30 seconds but it just keep shut down and do nothing.
When the tablet is completely shut down, I tried powering it up pressing just the "Power" button, but also "Power & Vol+", "Power Button & Vol-" but it does the same thing every time. It also acts identical whether the tablet is plugged in via USB or not.
Does someone have any leads on what I can do to revert back to original state or even just access fastboot mode ?
EDIT: I just realized the TWRP given on this topic (https://forum.xda-developers.com/sho...5&postcount=56
) was for the M4P7
version and mine is M5P3
.. Makes sense it's not working BUT even with this info, it doesn't help for my problem.