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My device runs on my own android build based on LineageOS 19.1

Not so long ago, I accidentally turned on an experimental feature for my phone and the entire screen went blank. When turned on, the system flashes for one second and the screen turns off.

I need to copy my files from my phone or disable the feature in the settings.

  • The touchscreen is working.
  • The bootloader is unlocked.

But all my data is encrypted, and the phone rejects all USB, while the system is running. Everything works in the bootloader and recovery.

  • I tried to use TWRP, but it can't decrypt the data after Android 8.
  • I also tried to use USB debugging, but it doesn't work without disabling the USB restriction.
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    Does the phone have a lock screen? If yes which type? For enabling adb you could try to modify the system partition. This should work as only the user data is encrypted. xdaforums.com/t/…
    – Robert
    Apr 24 at 11:42
  • Yes, It does. a PIN code.
    – Kra1v
    Apr 24 at 11:45
  • So you could enter it using an usb keyboard. Afterwards the user data files would be accessible (decrypted). If you would manage to enable adb by default you had full access then.
    – Robert
    Apr 24 at 11:47
  • Does not work. The terminal writes "adb: inaccessible or not found"
    – Kra1v
    Apr 24 at 12:03
  • 1
    The system partition is never encrypted. Thus Android doesn't has to decrypt anything if you want to modify it. On normal devices modifying the system partition is prevented by the locked bootloader and the vbmeta signatures from Android Verified Boot, but as you are running LineageOS both shouldn't be a problem.
    – Robert
    Apr 25 at 7:01

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