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The mobile phone can’t adjust the backlight brightness after changing the screen of VIVO iQOO UI
After changing the screen of VIVO iQOO UI, the mobile phone can't adjust the brightness of the backlight. This backlight is the brightest state and cannot be adjusted. Most of the circuits are damaged, so it can't give the reference voltage to the light control IC. Therefore, the CPU outputs with the rated voltage of the backlight.