Is it safe to downgrade to Android 9?

tassapan

Model: Lenovo TB-X605LC
Android version: 10
Is it safe to downgrade to Android 9?

Mario.CH

Yes it is safe.
Since after installing the operating system Ubuntu Touch only the hardware drivers of Android remain, um -er -erm - uh, now very simplified of course.
That's how you have to think of it in rudimentary terms.

Best regards

Mario

tassapan

@mario-ch I flashed my device with file from mirrors.lolinet.
TB-X605LC_S100026_200926_ROW.ZIP
But I'm still on Android 10.
Where can I find an Android 9 firmware?

MrT10001

@tassapan Check here.

tassapan

@mrt10001 Thank you, but they are also on mirrors.lolinet. And I think they are newer than 200926. I'll try 200813 instead.

tassapan

@tassapan Still on Android 10. I'll take a risk try 191229.

tassapan

Whoa, finally, Android 9.

MrT10001

@tassapan If you are looking to install Ubuntu Touch to the device, unless you are porting yourself, I think the TB-X605LC is slightly different to the TB-X605F/L and it may not install correctly or at all. Double check your device is correct as I may be wrong.

tassapan

@mrt10001 Thank you. I cannot install UT with an installer or inject it with fastboot as described at link text.
Now returning to latest Android 10.