LG Optimus F6 Guide De L'utilisateur page 348

Troubleshooting
Message
The screen
does not
turn on
when I
receive a
call.
No sound
Hangs up
or freezes
110
Possible causes
Proximity sensor
problem
Vibration mode
Intermittent software
problem
Possible corrective measures
If you use a protection tape or case,
make sure it has not covered the
area around the proximity sensor.
Make sure that the area around the
proximity sensor is clean.
Check the settings status in the
sound menu to make sure you are
not in vibration or silent mode.
Try to perform a software update via
the website.