User manual

119
Problem Possible causes Possible solution
Unable to
connect to the
network
nano-SIM card invalid. Contact your service provider.
You are not within the network’s
service area.
Check the service area with
your service provider.
Poor signal.
Move to an open space, or
if you are inside a building,
move closer to a window.
PIN Code
blocked
You have entered an incorrect PIN
code three consecutive times.
Contact your service provider.
If the service provider
provides the nano-SIM card’s
PUK code, use the PUK code
to unlock the nano-SIM card.
Phone crashes,
reboots,
freeze, or
cannot be
powered on
Some third-party software is not
compatible with your phone.
Reset the phone to factory
status.
Uninstall the software that
may cause the problem.
Upgrade the phone software.
Troubleshooting