![Zte Z777 User Manual Download Page 102](http://html1.mh-extra.com/html/zte/z777/z777_user-manual_941242102.webp)
102
Problem
Possible causes
Possible solution
You cannot
make
outgoing
calls.
You have activated the
Call barring
feature.
Go to
Call Barring
Settings
, and then
select
Deactive All
.
You have activated the
Fixed dial numbers
feature.
Go to
Fixed Dialing
Numbers
and disable it.
PIN Code
blocked
You have entered an
incorrect PIN code three
consecutive times.
Contact your service
provider. If the service
provider provides the
micro-SIM
card’s PUK
code, use the PUK code
to unlock the micro-SIM
card.
Unable to
enter
information
into the
phonebook
The phonebook’s
memory is already full.
Delete unnecessary
data from the contacts.
Phone
crashes,
reboots,
freeze, or
cannot be
Some third-party
software is not
compatible with your
phone.
Uninstall the software
that may cause the
problem.
Upgrade the phone
software.
Summary of Contents for Z777
Page 1: ...1 Z777 USER MANUAL www zteusa com ...
Page 19: ...19 ...
Page 20: ...20 ...
Page 63: ...63 entering 0000 or 1234 the most common passkeys or refer to the documents for that device ...
Page 103: ...103 Problem Possible causes Possible solution powered on Reset the phone to factory status ...