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one plus 7 display black and white dots

  1. Sagar_naidu Cupcake Jul 12, 2019 at 2:44 PM

    Sagar_naidu, Jul 12, 2019 at 2:44 PM :
    when i pressed the power button to unlock the device show black and white colours dots then i locked the device and i unlocked the phone and its good now
    can anyone tell me its that a bug or serious issue ??
    need help !
     

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