Huawei P30 Lite no display

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  • unimatrix93
    Badcaps Veteran
    • Oct 2021
    • 347
    • Magyarország
    #1

    Huawei P30 Lite no display

    Hello everyone!

    I received a Huawei P30 lite for screen replacement today.

    The original screen worked, but had crack at the top left part and made the screen glitch out. This is why the customer wanted a screen replacement.

    Now after I received the replacement part. I transferred all the components from the original case to the new one. It's a frame + display replacement combo.

    Now after installing the new screen a I quickly turned on the phone to test it, huawei logo showed up everything was nice and cool.

    But I noticed I forgot to transfer the power button circuit from the old frame, so I proceeded to take it apart and do it.

    Now, since I reinstalled everything the screen won't work.

    The phone turns on, since it's connecting to my PC, showing up its driver installer in the file explorer. But the screen backlight flashed only for a second then goes dark for ever.

    I measure around 0.60v on the backlight caps on the motherboard. But otherwise i cannot find a short on this rail.

    Where I should look now?
    Thank you for reading the wall of text and for helping me!
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