69
Upgrading the Phone Software
There are several ways to upgrade your phone software:
Use the online upgrade tool for mobile terminal products.
Use the one-press upgrade package offered by your mobile
service provider.
Use the upgrade package on your microSDXC card.
NOTE:
Visit the ZTE official handset service support website
(
http://www.ztedevice.com/support
) and select your country or
region to learn more about the above upgrade methods, as well
as which phones and methods are supported.
70
Troubleshooting
If you encounter problems while using the phone, or if it
performs abnormally, you can refer to the chart below. If your
particular problem cannot be resolved using the information in
the chart, contact the dealer where you purchased the phone.
Problem
Possible causes
Possible solution
Poor reception
The network signal is too
weak at your current location,
for example, in a basement
or near a tall building,
because wireless
transmissions cannot
effectively reach it.
Move to a location where
the network signal can be
properly received.
The network is busy at the
current time (for example,
during peak times, there
may be too much network
traffic to handle additional
calls).
Avoid using the phone at
such times, or try again after
waiting a short time.
You are too far away from a
base station for your service
provider.
You can request a service
area map from your service
provider.
Echo or noise
The network link quality is
poor on the part of your
service provider.
End the call and dial again.
You may be switched to a
better-quality network link or
phone line.
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Problem
Possible causes
Possible solution
The local telephone line
quality is poor.
End the call and dial again.
You may be switched to a
better-quality network link or
phone line.
Unable to
select certain
features
Your service provider does
not support these features,
or you have not applied for
services that provide these
features.
Contact your service
provider.
Cannot charge
the battery
The battery or battery
charger is damaged.
Contact the dealer.
The phone’s temperature is
below 0 °C or higher than
45 °C.
Adjust the battery charging
environment to avoid
extremes of temperature.
The contact between the
battery and charger is poor.
Check all connectors to
ensure that all connections
have been properly made.
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.
Contact the dealer to
change a new battery.
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Problem
Possible causes
Possible solution
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.
micro-SIM
card error
The micro-SIM card
malfunctions or is damaged.
Take the micro-SIM card to
your service provider for
testing.
The micro-SIM card is
inserted improperly.
Insert the micro-SIM card
properly.
There is 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
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.
The signal is poor.
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.
Disable this feature.
Cannot make
outgoing calls
You have activated the
Call
barring
feature.
Disable this feature.
