G'Five D90, User Manual

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56
FAQ and Solutions
You can check the phone simply before contacting with the post sales server in
order for you to avoid the excessive maintenance time and expense waste.
Cannot power the phone on

Check whether the Powering-on key is pressed and hold for 1 second or
above;

Check whether the battery is contacted badly or not. Please remove the
battery firstly and then try to power the phone on;

Check whether the battery capacity is used up or not; please charge the
battery;
Upon power-on, there is information displayed

Input phone lock password: select the locking function and should input the
phone password before use.

Input PIN: select the function of inputting PIN when the phone is powered
on. The PIN shall be input;

Input PUK: after the PIN is input wrongly for successively 3 times, the
phone will be locked. The PUK provided by the network operator should be
input;
SIM card error

There is some dirt o the metal surface of the SIM card. Please wipe the
metal contacts of the SIM card with a clean cloth ;

SIM card is not installed. You should install the SIM card based on the
User’s Manual.

SIM card is damaged. Please contact with your network supplier;
Cannot access to network

The signal is weak, please move to the place where the signal is strong and
retry;