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Aporte original por: Minho ,


If iTunes recognizes your device and multiple screens don't work, then check the LCD with a flash light. If you see a dim image, then it sounds to me like you have a blown backlight circuit on the logic board. It's usually the filter but it can also be the rest of the circuit.

It's either the screen or the backlight circuit on the logic board. If you have access to a known-good screen, try that first. Otherwise, you will need to find a reputable shop that does micro-soldering.