37
FAQ
Cause and Solution
Dirt on the metal surface of an SIM card.
Use clean cloth to wipe the metal touch
point on an SIM card.
The SIM card is not installed.
The SIM card is damaged. Please contact
your network service provider.
SIM Card
Error
Please check if you press the dial key after
dialing.
Please check if calling is forbidden because
of defaulting.
Please check if the SIM is valid.
Please check if the call barring is set.
Please check if the fixed dial function is set.
Please check if the mobile phone is on
and connected with the network.
Please check if the Call barring or call
divert is activated.
Please check if the SIM card is valid.
Fail to dial
out
Callers can
not contact
you
Poor contact. Please check if the plug is
connected well.
Please confirm if the environment
temperature is within the range of 0ºC
~40ºC while charging.
The battery or charger is damaged. You
need to replace it.
Fail to
charge
