More → App lock setting card
Security
App lock
Require a PIN when opening the app
Fingerprint unlock
Default — PIN stays as fallback
Lock after leaving app
Only on open
When App lock is off, fingerprint unlock is disabled.
App lock OFF → biometric disabled
App lock
Require a PIN when opening the app
Fingerprint unlock
Requires app lock to be enabled
Toggle App lock on to enable fingerprint unlock.