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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
There is no SIM card in
SIM error
the phone or it is inserted
incorrectly.
Signal is weak or you're
No network
outside the carrier network.
connection/
Operator applied new
Losing
services.
network
Possible corrective measures
Make sure that the SIM card is correctly inserted.
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.
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