Getting started
Please make sure that the phone is powered off before proceeding.
Buttons
Power key: To power off M4 B3, press and hold power key for a few
seconds, then tap the options to confirm.When M4 B3 is on, press
the power key once to activate or deactivate the screen.
Home key:Touch the key to return to the home screen. In idle
screen, touch and hold the key recently accessed features.
Menu key: In idle screen, touch the key to view recently accessed
features.
Back key: Touch to go back to the previous menu.
Screen
M4 B3 features a 6.0" screen with 1280*720 high resolution. Which
make your phone looks fascinating.