116
Troubleshooting
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.
Make sure that the SIM card is correctly
inserted.
No network
connection/
Losing
network
Signal is weak or you're
outside the carrier network.
Move towards a window or into an open area.
Check the network operator coverage map.
Operator applied new
services.
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.
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