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Former Member's avatar
Former Member
4 years ago

Biometric Unlock unavailable

Trying to turn on biometric unlock in 1P produces an IllegalBlockSizeException.
I saw a similar thread with the same error but no resolution was posted.
https://1password.community/discussion/119024/biometric-unlock-unavailable

Android 10
Moto E
1P 7.9.1
Fingerprint unlock set up (face unlock not available on this phone)


1Password Version: 7.9.1
Extension Version: Not Provided
OS Version: Android 10

  • Former Member's avatar
    Former Member

    @djlittlemind, I'd like to ask you to repeat Timothy's initial steps, but with a few additional steps:
    1. Uninstall the 1Password app on your Android device.
    2. Open your device's Settings > Security > Fingerprint Unlock > Delete your saved fingerprints.
    3. Go back to the Security settings and disable all forms of lock screen security (pattern, PIN, or password).
    4. Reboot your device.
    5. Turn on Fingerprint Unlock and save your fingerprints again.
    6. Turn on lock screen security again.
    7. Reinstall the 1Password app.

    Let us know how that goes!

  • Former Member's avatar
    Former Member

    I did exactly as you suggested. I get the identical error again.

  • 1P_Timothy's avatar
    1P_Timothy
    Icon for 1Password Team rank1Password Team

    Hello @djlittlemind thanks for reaching out to us!

    I'd like to ask you to try resetting your biometrics. Before you proceed, make sure you can sign in to your account on the 1Password website and have your account password and Secret Key handy.
    1. Open 1Password for Android.
    2. Tap > Settings > Security > Turn off Biometric Unlock.
    3. Open your device's Settings > Security > Fingerprint Unlock > Delete your saved fingerprints and turn off Fingerprint Unlock.
    4. Restart your device > Turn on Fingerprint Unlock and save your fingerprints again.
    5. Open the 1Password app.
    6. Tap > Settings > Security > Turn on Biometric Unlock.