ZTE-J G730/G740/G750/G780 GoTa Digital Mobile Phone User Manual
64
Trouble Possible
Cause
Solution
Call drop during a
call
Poor network signal
Move to other
places
No ring for a
incoming call
The phone is set to
Silence
, or the ring
volume is set to 0
Enter Profiles and
change the mode; or
check the ring
volume
Prompt to input PUK
UIM card is locked
due to successive
inputting false PIN
code for three times
Contact the
operators