LG E400 User Guide
117
This chapter lists some problems you might encounter while using your phone. Some
problems require you to call your service provider, but most are easy to fix yourself.
Message
Possible causes
Possible corrective measures
SIM error
There is no SIM card in
the phone or it is inserted
incorrectly.
the phone or it is inserted
incorrectly.
Make sure that the SIM card is correctly inserted.
No network
connection/
Losing
network
connection/
Losing
network
Signal is weak or you’re
outside the carrier network.
Operator applied new
services.
outside the carrier network.
Operator applied new
services.
Move towards a window or into an open area. Check the
network operator coverage map.
Check whether the SIM card is more than 6~12 months
old. If so, change your SIM at your network provider's
nearest branch. Contact your service provider.
network operator coverage map.
Check whether the SIM card is more than 6~12 months
old. If so, change your SIM at your network provider's
nearest branch. Contact your service provider.
Troubleshooting