![Zte Z777 User Manual Download Page 101](http://html1.mh-extra.com/html/zte/z777/z777_user-manual_941242101.webp)
101
Problem
Possible causes
Possible solution
Cannot turn
your phone
on
Battery power has been
depleted.
Recharge the phone’s
battery.
micro-SIM
card error
micro-SIM card
malfunction or damage.
Take the micro-SIM card
to your service provider
for testing.
micro-SIM card inserted
improperly.
Insert the micro-SIM
card properly.
Debris on the micro-SIM
card contacts.
Use a soft, dry cloth to
clean the micro-SIM
card contacts.
Unable to
connect to
the network
micro-SIM card invalid. Contact your service
provider.
You are not within the
network’s service area.
Check the service area
with your service
provider.
Poor signal.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Cannot
answer
incoming
calls
You have activated the
Call barring
feature.
Go to
Call Barring
Settings
, and then
select
Deactive All
.
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 ...