User manual

19
9.12.8 Advanced
-Language settings
-SIM1 call settings
-SIM2 call settings
-Security settings (Set for protecting your phone or main card from been illegally used under this
menu.)
-Memory details
-Master reset, restore the settings to default.
10. Appendix
Appendix 1：Troubleshooting
If you find exceptions when operating the mobile phone, restore the factory settings and then refer
to the following table to solve the problem. If the problem persists, contact the distributor or service
provider.
Fault
Cause
Solution
USIM/SIM
Cards error
The USIM/SIM
Cards is
damaged.
Contact your network service provider
The USIM/SIM
Cards is not in
position.
Check the USIM/SIM Cards
The metal face
of the
USIM/SIM
Cards is
polluted.
Clean the USIM/SIM Cards with a clean cloth
Poor received
signal quality
Signals are
obstructed.
For instance,
radio waves
cannot be
effectively
transmitted
nearby a high
building or in a
basement.
Move to a place where signals can be effectively transmitted
Line
congestions
occur when
you use the
mobile phone
in high-traffic
hours
Avoid using the mobile phone in high-traffic hours
The mobile
phone cannot
be powered on
The battery
energy is
exhausted.
Charge the battery