Zte Blade Spark AT&T User Manual page 59

Upgrading the Phone Software
There are several ways to upgrade your phone software:
1 . Use the online upgrade tool for mobile terminal products .
2. Use the one-press upgrade package offered by your mobile
service provider .
3 . Use your PC to download an upgrade package to your
microSDXC card and install it to your phone from the card .
Note: Visit the ZTE official handset service support website
(http://www . z tedevice . c om/support) and click your country or
region to learn more about the above upgrade methods, as well
as which phones and methods are supported .
114 UPGRADING THE PHONE SOFTWARE
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
The network signal is too weak
at your current location, for
example, in a basement or
near a tall building, because
wireless transmissions can not
effectively reach it.
Poor The network is busy at the
reception current time (for example,
during peak times, there may
be too much network traffic to
handle additional calls) .
You are too far away from a
base station for your service
provider .
Poor network link quality on the
part of your service provider .
Echo or
noise
Poor local telephone line quality .
Unable Your service provider does not
to select support these features, or you
certain have not applied for services
features that provide these features .
TROUBLESHOOTING
Possible solution
Move to a location where the
network signal can be properly
received .
Avoid using the phone at such
times, or try again after waiting a
short time .
You can request a service area
map from your service provider .
End the call and dial again . You
may be switched to a better-
quality network link or phone
line .
End the call and dial again . You
may be switched to a better-
quality network link or phone
line .
Contact your service provider .
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