53
Unable to turn
The battery is empty.
Look at the
on the phone
remaining electricity
or recharge.
SIM card
SIM card is damaged.
malfunction
SIM card is not properly inserted.
There is a dirty substance on the metal
surface of the SIM card.
Unable to connect Expired SIM card.
with the networ
Outside the GSM service area.
Poor signal.
Unable to make
Using the call bar function.
a call
Using the call bar function.
Incorrect
Consecutively enter the wrong
PIN number
password three times.
Unable to charge
The Battery or charger is damaged.
Recharging in the environment of less
than -10 or higher than 55.
Poor contact.
Contact your
network service
provider.
Confirm SIM card is
properly inserted.
Contact your
network provider.
Consult your
network provider on
the service area.
Please move to a
place with a better
signal and try again.
Cancel the call
bar function.
Cancel the fixed
call setting.
Contact your
network provider.
Replace the battery
or charger.
Change the charging
environment.
Check if the plug is
properly connected.
Use a clean cloth to
wipe off the metal
contact point of the
SIM card.
Frequently
Cause
How to Fix
Occurring
Problems
