36
Troubles
Possible Causes
Solutions
Unable to
switch on
When there is no signal received, the
phone will keep searching for the base
station can shorten standby time.
Move to areas with
strong signal or
temporarily turn
off the phone.
Battery out.
Check battery
status or charge.
SIM card
problem
SIM card damaged.
SIM card unfixed.
Stain on SIM card surface.
Contact the network
service provider.
Make sure SIM card
has been inserted
and fixed properly.
Wipe the metal
contact of SIM card
with clean cloth.
Unable to
connect to
network
SIM card invalid.
Contact the
network provider.