152
Problem
Possible causes
Possible solution
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.
Uninstall the software
that may cause the
problem.
Upgrade the phone
software.
Reset the phone to
factory status.
Содержание Z837VL
Страница 1: ...1 Z837VL User Manual ...
Страница 12: ...12 Headset jack Flash Speaker Back camera Back cover Charging micro USB jack ...
Страница 26: ...26 Touch at the bottom of a home screen thumbnail to set it as the main home screen ...
Страница 88: ...88 separate 3 Touch Separate 4 Touch OK to confirm ...