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Thread: One Plus 7 pro Diag port not working anymore

  1. #1
    Junior Member
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    One Plus 7 pro Diag port not working anymore

    Diag port won't read inside UMT Dongle Qualcomm Tools. I've tried downgrading firmware and even rooting it and using adb commands and still won't read it. Any suggestions? I'm currently on 9.5.8




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  2. #2
    Senior Member GsmRock's Avatar
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    Quote Originally Posted by pimp2xg View Post
    Diag port won't read inside UMT Dongle Qualcomm Tools. I've tried downgrading firmware and even rooting it and using adb commands and still won't read it. Any suggestions? I'm currently on 9.5.8
    Try code *#801# after downgrade search for forum downgrade firmware then code is working my tested
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