User's Manual

44
SIM Card Void
When the phone shows “SIM Card Void”, you can try the
following:
Powers the phone off then restart to sure if can solve.
If your SIM card is a prepaid card, to sure whether the card is
insufficient.
Please turn to your network provider, and to sure whether to be
refused registration network by other reasons.
Weak signal or no signal
You may be in a location where the reception is bad, such as
tunnel or cellar, please relocate and try again.
You can try turning around slightly or get near the window if you
are in the room.
Bad talking quality
Weak signal, you can try solutions above.
Low battery, change a new battery or charge the battery.
Use up volume key to adjust microphone volume.
Can’t make a call
Check if you enter the correct number and press send key.
Check if you set call barring, if yes cancel it.
Can’t receive calls
Check if your phone is turned on.
Check if screen shows no signal, if yes, try solutions above.
Check if you set call barring, if yes, cancel it.
Screen is dark
Check if battery is low, change a battery or charge the battery.
Adjust the brightness in settings.