Zte Grand S Flex User Manual page 160

Problem
Unable to
enter
information
into the
phonebook
Phone
crashes,
reboots,
freeze, or
cannot be
powered on
Possible causes
The phonebook's
memory is already full.
Some third-party
software is not
compatible with your
phone.
Possible solution
Delete unnecessary
data from the contacts.
Reset the phone to
factory status.
Enter safety mode and
uninstall the software
that may cause the
problem.
Upgrade the phone
software.
160