What is possible defect of no lcd backlight
how to repair lcd backlight
Is this a good question?
Use these guides to repair phones from all manufacturers and service providers.
chad, since you did not tell us what make or model your phone is you can only get a generic answer. No backlight can be caused by multiple issues like a bad panel, a bad LED driver as well as multiple failed components like power coils, diodes and filters within the backlight circuitry. There is not one specific component that fails but a multitude of possibilities.
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