Problem
Cause
Solution
Files cannot be
opened
The file format
may not be
supported
Check the file formats.
Phone does
not turn on
On/off button
may be pressed
and held for
a very short
duration.
Press and hold the on/
off button at least 3
seconds.
The battery may
be empty.
Charge the battery.
Applications
cannot be
opened
May not be
supported by the
service provider.
Contact your service
provider.
Phone
calls cannot be
placed
Dialing error.
Network is not
identified.
A new SIM
might have been
inserted.
Check the
restrictions.
Cost limit
might have been
reached.
Contact your service
provider.
SIM Error
No SIM inserted
or SIM is
not correctly
inserted.
Make sure your SIM
card is inserted
correctly.
The screen
does not
display when a
call is received
May be a
proximity sensor
issue.
If you are using a
protective band or a
case with your device,
make sure that it does
not cover the space
around the sensor.
