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34
Problem
Possible
Cause
Solution
Can’t
turn
on the
device.
Low battery.
Charging the battery.
Operate the
wrong on/off
button.
Long press the center
button for 3 seconds to turn
the unit on.
The device is
charging.
Unplug the charging cable
and then use it.
Something is
wrong inside
the device.
Contact us if the device
still can’t be turned on after
trying all of the above solo
-
tions.
Can’t
adjust
the
mode/
intensi-
ty/time.
Adjust the
intensity for
the wrong
channel.
If you want to adjust the in
-
tensity for channel A, make
sure the “A” icon is select
-
ed and flashing on and off.
The screen is
locked.
If there’s a lock icon on the
top right side of the screen,
please press the center
button or tap the lock icon
to unlock it.