Hi, I tried that and still it did not work. After flashing android 9 - the tablet display is grey-blue and doesn't display anything. Even so, I managed to get back into download mode and flashed android 10 without BL - is showed success but still the screen is grey-blue/black - and displays nothing.
And like previously mentioned, the tablet is on - but the display is not showing anything - any idea why the display would not show anything?
Thanks
I recommend the following actions:
1) flash full firmware 10 android, that is, all 4 parts.
The device should start up normally.
2) Lock the bootloader - this is done in the same way as unlocking, but in the reverse order.
3) flash 9 android, parts BL, AP, CP, CSC (not HOME_CSC), that is, with data reset, otherwise rollback is impossible.
4) if the device starts successfully, then unlock the bootloader.
5) flash 10 android, but no BL file
P.S. If the bootloader was unlocked on Android 9, then it will remain unlocked on Android 10 ...
My second device T295 has a production date of 10/10/2020 and I don't see any such problems ...