Zte BLADE V7 LITE User Manual page 157

Problem Possible causes
Cannot turn
Battery power has been
your phone
depleted.
on
The nano-SIM card
malfunctions or is
damaged.
nano-SIM The nano-SIM card is
card error inserted improperly.
There is debris on the
nano-SIM card contacts.
The nano-SIM card is
invalid.
You are not within the
Unable to
network's service area.
connect to
the network
The signal is poor.
Cannot
answer You have activated the
incoming Call barring feature.
calls
157
Possible solution
Recharge the phone's
battery.
Take the nano-SIM card
to your service provider
for testing.
Insert the nano-SIM
card properly.
Use a soft, dry cloth to
clean the nano-SIM card
contacts.
Contact your service
provider.
Check the service area
with your service
provider.
Move to an open space,
or if you are inside a
building, move closer to
a window.
Disable this feature. See
on
Bar Certain Calls
page 83.