LG KM555 User Manual page 144

Troubleshooting
MESSAGE POSSIBLE CAUSES
Phone On/Off key pressed too
cannot be briefly Battery empty
switched on Battery contacts dirty
Charging Battery totally empty
error
Temperature out of
range
Contact problem
No mains voltage
Charger defective
Wrong charger
Battery defective
Phone Signal too weak
loses
network
68 LG KM555 | User Guide
POSSIBLE CORRECTIVE
MEASURES
Press On/Off key for at least
two seconds. Charge battery.
Check charging indicator in
the display. Clean contacts.
Charge battery. Make sure the
ambient temperature is right,
wait for a while, and then
charge again.
Check power supply and
connection to the phone.
Check the battery contacts,
clean them if necessary.
Plug in to a different socket or
check voltage.
If the charger does not warm
up, replace it.
Only use original LG
accessories.
Replace battery.
Reconnection to another
service provider is automatic.