LG P350 User Manual page 170

Troubleshooting
Message
Impossible to
receive/send
SMS & Picture
Files not open
SD Card not
working
No Sound
Hang up or
freeze
76
Possible causes
Memory Full.
Unsupported file
format.
FAT 16 file system
supported only.
Vibration or silent
mode.
Intermittent
software problem.
Possible Corrective Measures
Delete some existing messages in the
phone.
Check that the file format can be
supported.
Check SD card file system via card reader
or format SD card using phone.
Check the setting status of sound menu
to make sure you are not in vibrate or
silent mode.
Take out the battery and reinsert it.
Turn on the phone.
Try to do software update service via
website.