94
95
Problem
Possible causes
Possible solution
Unable to
connect to the
network
The micro-SIM card is 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 make
outgoing calls
You have activated
Fixed Dialing
Numbers
.
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
SIM card’s PUK code, use the PUK
code to unlock the 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, freezes,
or cannot be
powered on
Some third-party software is not
compatible with your phone .
Uninstall the software that may
cause the problem .
Upgrade the phone software .
Reset the phone to factory status .
Device is
sluggish or
responds slowly
Your phone is allocating memory to a
large number of apps running at the
same time .
Go to
Task Manager
and close
apps that are not being used .
TROUBLESHOOTING
FOR YOUR SAFETY
For your safety
General safety
Don’t make or receive
handheld calls while
driving . And never text
while driving .
Don’t use at gas stations .
Keep your phone at least
half an inch (15 mm) away
from your ear or body while
making calls .
Your phone may produce
a bright or flashing light .
Small parts may cause
choking .
Don’t dispose of your phone
in a fire .
Your phone can produce
a loud sound .
To prevent possible hearing
damage, do not listen at high
volume levels for long periods
Avoid contact with
anything magnetic .
Avoid extreme temperatures .
Keep away from
pacemakers and other
electronic medical devices .
Avoid contact with liquids . Keep
your phone dry .
Power off when asked to
in hospitals and medical
facilities .
Don’t take your phone apart .
Power off when told to
in aircrafts and airports .
Only use approved accessories .
Power off when near
explosive materials or
liquids .
Don’t rely on your phone as a
primary device for emergency
communications .
Summary of Contents for Grand X Max+
Page 1: ...ZTE Grand X Max User Guide ...
Page 58: ...112 NOTES Notes ...