LG P920 User Manual page 244

Troubleshooting
Message
Charging error
Number not
permitted
Impossible to
receive / send
SMS & Picture
Files not open
SD Card not
working
The screen does
not come on
when I receive
a call.
No Sound
102
Possible causes
Battery is not charged.
Outside temperature is too
hot or cold
Contact problem
No voltage
Charger defective
Wrong charger.
Battery defective.
The Fixed Dial Number
function is on.
Memory Full
Unsupported file format
FAT16, FAT2 file system
supported
Proximity sensor problem
Vibration or manner mode
Possible Corrective Measures
Charge battery.
Make sure the phone is charging at normal
temperature.
Check the charger and connection to the
phone. Check the battery contacts, and clean
them if necessary.
Plug the charger into a different socket.
If the charger does not warm up, replace it.
Only use original LG accessories.
Replace battery.
Check settings.
Delete some messages from the phone.
Check the file formats that can be supported
Check SD card file system via card reader, or
format SD card using phone
If you use a protective tape or case, check
whether it is covering the area around the
proximity sensor. Make sure the area around
the proximity sensor is clean.
Check the settings status of the sound menu
to make sure you are not in vibrate or silent
mode.