68
Problem
Causes
Solution
The phone cannot
be switched on
1.Check if the battery
power has been used up
completely.
2.Did you press the End
Key for adequate time?
3.Have you inserted the
battery properly?
1.Charge
the
battery
2.Press the power
on key for about 1
second.
3.Please
remove
and re-install the
battery and turn on
the phone.
SIM card error
1.SIM card malfunction
or damage.
2.SIM card is not
inserted properly.
1.Take the SIM
card to your service
provider for testing.
2.Insert the SIM
card properly.
Unable to make
calls
1.Has the signal bar
disappeared?
2.Is the phone number
entered by you is
correct?
1
．
Move to a place
with strong signal.
2.Please re-check
whether
the
number entered by
you is correct or
not.
You
cannot
1.You have activated
1.Go to Settings >