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Uma Digital Meter

Julius M. Pionan

New Member
Pls help me with my Uma digital meter. I have one problem on my uma digital meter. I tested all the functions and settings and its working well, except the background light. Everytime I change from high to low beam or low to high beam. It doesn't change to different color. It only stays in one color and its always RED. Any help please?

by the way, im not the first owner. its 2nd hand.