4. Repeatedly depress the HI/LOW beam switch rapidly, then, w w h h i i l l e e
d d o o i i n n g g t t h h i i s s , press and hold the V V o o l l u u m m e e D D o o w w n n / / C C a a n n c c e e l l l l i i n n g g C C a a l l l l
button until the following message appears on the display.