Getting Started Guide

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5 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
SIM card error
The SIM card is
damaged.
Contact your network service provider
The SIM card is not
in position.
Check the SIM card
The metal face of the
SIM card is polluted.
Clean the SIM card 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