I have replaced the broken screen of my Oneplus 8T (KB2003), where I have used a screen already attached to a new frame including the fingerprint sensor from AliExpress. The delivered screen with frame etc. looked exactly like the original one. This means I actually just had to switch over all parts inside the device. The phone is not rooted (never was) and still uses the stock recovery.
Now, everything works, except the fingerprint sensor. In Android 13 (Oxygen OS 13) the icon of the fingerprint appears on the screen, but the fingerprint is neither recognized nor there is a vibration. I already tried the following things:
Now the interesting part comes: If I boot the device with the old fingerprint sensor connected (Android 11 or 13), and switch to the new one while the phone is running, everything works. This means I can use the fingerprint of the new screen, register new fingers etc. with the new sensor. Once I reboot the phone, it does not work any longer.
Does anyone have an idea what I could try to be able to use the new fingerprint sensor even after a reboot? Thank you!
Now, everything works, except the fingerprint sensor. In Android 13 (Oxygen OS 13) the icon of the fingerprint appears on the screen, but the fingerprint is neither recognized nor there is a vibration. I already tried the following things:
- delete all pins and fingerprints and reboot in Android 13
- delete all pins and fingerprints in safe mode and reboot in Android 13
- wipe all data (in the stock recovery)
- factory reset
- downgrade to Android 11 (via local install of the zip), here an error appears if I try to register a new fingerprint: "Error during fingerprint registration, please try again"
- delete all pins and fingerprints and reboot in Android 11
- delete all pins and fingerprints in safe mode and reboot in Android 11
Now the interesting part comes: If I boot the device with the old fingerprint sensor connected (Android 11 or 13), and switch to the new one while the phone is running, everything works. This means I can use the fingerprint of the new screen, register new fingers etc. with the new sensor. Once I reboot the phone, it does not work any longer.
Does anyone have an idea what I could try to be able to use the new fingerprint sensor even after a reboot? Thank you!