2.2 Buttons and ports operation guide
2.2.1 Power/lock button
1)When the M3 Pro is powered off, hold it for 2s to turn it on;
2)When the M3 Pro is on, press it briefly until a power off prompt shows up. Choose
Yes to turn off it;
3)Under working mode, short press it to wake up or turn off the screen;
4)If the M3 Pro is stuck, long press the power button for 10s to force a shutdown. After
that do another 2-second long press to wake it up to normal working.
2.2.2 Volume up
1)When the display is on, short press it for 1 step volume up while long press to
continuously increase the volume until it is maximum;
2)If the M3 Pro is playing tracks and the screen is locked, long hold the Volume up
button to switch to the next track.
2.2.3 Play/pause button
In the now playing page (or lock/off screen state), short press it to play or pause.
2.2.4 Volume down
1)When the display is on, short press it for 1 step volume down while long press to
continuously decrease the volume until it is mute;
2)If the M3 Pro is playing tracks and the screen is locked, long hold the Volume down
button to switch to the previous track.
2.2.5 TF card slot
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