Zte Q301C User Manual page 164

Problem
PIN Code
blocked
Unable to
enter
information
into the
phonebook
Phone
crashes,
reboots,
freeze, or
cannot be
powered on
Possible
causes
You have
entered an
incorrect PIN
code three
consecutive
times.
The
phonebook's
memory is
already full.
Some
third-party
software is
not
compatible
with your
phone.
164
Possible
solution
Contact your
service
provider. If the
service
provider
provides the
micro-SIM
card's PUK
code, use the
PUK code to
unlock the
micro-SIM card.
Delete
unnecessary
data from the
contacts.
Reset the
phone to
factory status.
Enter safety
mode and
uninstall the
software that
may cause the
problem.