LG P920 User Manual page 212

Troubleshooting
Message
Hang up or freeze
104
Possible causes
Intermittent software
problem
Possible Corrective Measures
Remove and re-insert battery.
Turn on the phone.
If the phone is locked and does not work,
press and hold the Power/Lock key for
10 seconds to turn it off. Then, press the
Power/Lock key again for 3 seconds to reboot
the phone.
Try to do a software update service via the
website.