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Other settings : Security : Lock and unlock phone
•
When the sensor can't read the fingerprint
Fix a problem
Problem: Sometimes the sensor can't read my fingerprints.
Each finger has a unique print. If you've added only one fingerprint, add more for other fingers you want to
use with the sensor.
The sensor may have trouble reading fingerprints if your finger is:
•
Wet
•
Oily
•
Dirty
•
Injured
If a registered fingerprint isn't working as expected,
injured, add fingerprints for your other fingers and use them until healed.
Problem: Fingerprint option disappeared from Security menu.
After each troubleshooting step, check to see if your issue is fixed.
1.
Turn your phone off and then on again.
2.
Check if a
software update
3.
Check for app updates.
Open
the Play Store app and touch
4.
Use
safe mode
to see if apps you installed are causing the issue and uninstall as needed.
If the sensor works correctly in safe mode, a 3rd party app is probably causing the issue. These apps can
cause issues: lock screen apps, app locks that use the fingerprint sensor, RAM boosters, and RAM
cleaners.
5.
Reset
the phone.
Pin your screen
Turn on pinning
Use pinning to keep the current app in view until you unpin it. For example, you can pin a game and your
child cannot navigate anywhere else on your phone.
You can set up a pattern, PIN, or password required to unpin.
1.
Go to
Settings
> Security > Advanced > Screen pinning.
2.
Turn screen pinning on.
3.
By default, you must always enter your pattern, PIN, or password when unpinning a screen. If you don't
want this security before accessing your other phone screens, turn this option off.
is available for your phone.
> My apps & games.
remove
and re-add the fingerprint. If your finger is
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