Zte Axon 7 User Manual page 145

Problem
Cannot turn
your phone on
nano-SIM card
error
Unable to
connect to the
network
Cannot answer
incoming calls
Cannot make
outgoing calls
Possible causes
If you can‟t 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 shortens standby time.
Battery power is depleted.
The nano-SIM card
malfunctions or is damaged.
The nano-SIM card is
inserted improperly.
There is debris on the
nano-SIM card contacts.
The nano-SIM card is
invalid.
You are not within the
network‟s service area.
The signal is poor.
You have activated the Call
barring feature.
You have activated the Call
barring feature.
Possible solution
Change to a location where
the network is accessible, or
temporarily turn off your
phone.
Recharge the battery.
Take the nano-SIM card to
the 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. For
more information, see
Certain
Disable this feature. For
more information, see
Certain
145
Bar
Calls.
Bar
Calls.