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
battery.
SIM card is not inserted properly. Make sure SIM card is inserted
properly.
Dirt on metal side of SIM card. Wipe metal point of SIM card
with a clean cloth.
Cannot connect to
network
SIM card is unusable Contact your operator.
Out of GSM service area. Request service area to
operator.
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