Zte Z855 User Manual And Safety Information page 107

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Problem
Possible causes
You have entered an incorrect
PIN Code
PIN code three consecutive
blocked
times.
Phone
crashes,
Some third-party software is
reboots,
not compatible with your
freeze, or
phone.
cannot be
powered on
Possible solution
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.
Uninstall the software that may cause the
problem.
Upgrade the phone software.
Reset the phone to factory status.
107

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