Zte GRAND X View 3 User Manual page 44

Problem Possible causes
nano-SIM card nano-SIM card malfunction or
error damage.
nano-SIM card inserted
improperly.
Debris on the nano-SIM card
contacts.
Unable to nano-SIM card invalid.
connect to the
network
You are not within the network's
service area.
Poor signal.
Device Some third-party software is not
crashes, compatible with your device.
reboots,
freeze, or
cannot be
powered on
Possible solution
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.
Reset the device to factory
status.
Uninstall the software that
may cause the problem.
Upgrade the device
software.
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