LG -P990 User Manual page 220

Troubleshooting
Message
Impossible to
receive/ send
SMS & Picture
Files not open
SD Card not
working
The screen
does not turn
on when I
receive a call.
No Sound
Hang up or
freeze
98
Possible causes
Memory Full
Unsupported file
format
FAT 16 file system
supported only
Proximity sensor
problem
Vibration or manner
mode
Intermittent software
problem
Possible Corrective Measures
Delete some existing messages in
the phone.
Check the file format that can be
supported
Check SD card file system via card
reader Or format SD card using phone
If you use any protection tape or case,
check if it is covering the area around
the proximity sensor. Make sure that
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.
Remove battery and re-insert battery.
Turn on the phone.
Try to do a software update service
via WEB site.