FAQ
This chapter lists some problems you might encounter when 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 card error
the phone or it is inserted
incorrectly.
Signal is weak or you
are outside the carrier
network.
No network
connection/
Dropped
network
Operator applied new
services.
To change a security code,
confirm the new code by
Codes do not
re-entering it.
match
The two codes you entered
do not match
No
Not supported by service
applications
provider or registration
can be set
required.
Downloaded
application
Remove the application.
causes a lot of
errors.
Appendix
All manuals and user guides at all-guides.com
Possible corrective measures
Make sure the SIM card is
correctly inserted.
Move toward 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 or USIM
card at your network provider's
nearest branch. Contact your
service provider.
If you forget the code, contact
your service provider.
Contact your service provider.
1. Tap
Settings.
2. Tap the General Apps.
3. Tap the app Uninstall.
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