21
Need to change battery.
Insert a new battery.
When you cannot receive signals, your cellular
phone will continue to send to find a basis. A lot
of battery power is used, so as to limit idle time.
Please move to an area where
the signal is strong or
temporarily turn off your phone.
Cannot
switch on
Battery is drained.
Check battery volume or
charge the battery.
Wrong SIM
card
The SIM card is damaged.
Contact your operator.
The SIM card is not inserted properly.
Make sure the SIM card is
inserted properly.
Dirt on the metal side of the SIM card.
Wipe the metal point of theSIM
card with a clean cloth.
Cannot
connect to
network
The SIM card is invalid.
Contact your operator.
Out of GSM service area.
Request service area to
operator.
Feeble signal.
Please move to an area where
the signal is stronger and try
again.