On a Cubot Quest phone with android 9: Each time I reboot, the login screen does not accept my password at first attempt. It shows Wrong Password and immediately asks for a password again. At the second time the password is accepted. This happened about 100 times in a row.
This may be related to a bunch of other problems that started a few days ago: Apps crash repeatedly and the phone crash usually within 10 or so seconds. I tried to empty the cash of some Apps but next time I reboot the change has been reversed ie the old cash size is shown for the app; I tried to delete several apps, but after a reboot they are back again; if wifi or bluetooth or location etc are off and I switch them on, after a reboot they will be off again. Internal Memory is said to be 33% full. Ram I don't know.
Given the phone hangs up within 10 seconds debugging or backing up is obviously close to impossible.
Any ideas before a factory reset?