LG -P720h Guia Del Usuario página 146

Troubleshooting
Message
No sound
Hang up or
freeze
144
Possible causes
Vibration mode
Intermittent software
problem
Possible corrective measures
Check the settings of the sound menu to
make sure you are not in vibrate or silent
mode.
R
emove and re-insert battery. Turn on the
phone.
Try to do a software update service via the
website.