Motorola Z3 master reset
Reset all options except unlock code, security
code, and lifetime timer:
> 
Settings > Initial Setup > Master Reset
Motorola Z3 master clear
Caution: Master clear erases all information you
have entered (including contacts and calendar
entries) and content you have downloaded
(including photos and sounds) stored in your
phone’s memory. After you erase the
information, you can’t recover it.
> Settings > Initial Setup > Master Clear
