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Thread: vivo y91 com port problem

  1. #1
    Junior Member
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    Mar 2020
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    vivo y91 com port problem

    My friend forgot his pattern in his vivo y91 and ask me to fix it. Problem is, com port dont show on device manager despite of drivers I already installed. please help, Thanks




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  2. #2
    Senior Member
    Join Date
    Sep 2017
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    105
    Thanks Meter: 14
    maybe ur phone is qualcom cpu....u need to cheak with test point

  3. #3
    Junior Member
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    Mar 2020
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    Thanks Meter: 0
    how do I check the test point?

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