ZTE Z750C Cell Phone User Manual


 
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Problem Possible Causes Possible Solution
Shortened
standby time
The standby time is related to your service
provider system configuration. The same
phone used with different service providers’
systems will not provide exactly the same
length of standby time.
If you are located in an area where
signaling is weak, temporarily power off
the phone.
The battery is depleted. In high temperature
environments, battery life will be shortened.
Use a new battery.
If you are not able to connect to the
network, the phone will continue to send
out signals as it attempts to locate a base
station. Doing so consumes battery power
and will consequently shorten standby time.
Change your location to one where the
network is accessible, or temporarily turn
off your phone.
Cannot turn your
phone on
Battery power has been depleted. Recharge the phone’s battery.
Unable to connect
to the network
You are not within the network’s service
area.
Check the service area with your service
provider.
You cannot make
outgoing calls.
You have activated the Fixed dial numbers
feature.
Go to Call settings to check the Fixed
Dialing Numbers and disable it.
PIN Code blocked
You have entered an incorrect PIN code
three consecutive times.
Contact your service provider.
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
powered on
Some third-party software is not compatible
with your phone.
Reset the phone to factory status.
Troubleshooting
General Safety
For Your Safety
Don’t make or receive handheld calls
while driving. Never text while driving.
Keep your phone at least 15 mm
away from your ear or body while
making calls.
Small parts may cause choking.
Your phone can produce a loud sound.
Avoid contact with anything magnetic.
Keep away from pacemakers and other
electronic medical devices.
Turn off when asked to in hospitals and
medical facilities.
Turn off when told to in aircrafts
and airports.
Turn off when near explosive materials
or liquids.
Don’t use at gas stations.
Your phone may produce a bright or
flashing light.
Don’t dispose of your phone in fire.
To prevent possible hearing damage,
do not listen at high volume levels for
long periods.
Avoid extreme temperatures.
Avoid contact with liquids. Keep your
phone dry.
Don’t take your phone apart.
Only use approved accessories.
Don’t rely on your phone for emergency
communications.