Sony F5121: Forgot Device Encryption Passwort, locked bootloader

by bonanza   Last Updated April 15, 2019 09:11 AM

I forget the device encryption password for my F5121 (locked bootloader). Is there any way to hard-reset the device, so I can use it again (I don't care about the data on it)?

I already tried some combination with Power Button + Volumne Up/Down, but I don't see any options popping up.

Also, unlocking the bootloader does not seem to work (probably I should have enabled oem unlocking in the android settings before), it says:

FAILED (remote: 'Command not allowed')

Same error, when trying to flash TWRP.



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