problem with an ipad4

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  • vinifera
    Vinifera
    • Aug 2018
    • 28
    • Belgium
    #1

    problem with an ipad4

    hi,

    I have also a problem with an ipad4
    PPVCC_main is going between 0,056V and 3,35V
    what can be the problem ?
    when i measure a short on this line i have 0,170 in diode mode ?

    can somebody help me
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20339
      • UK
      #2
      Re: problem with an ipad4

      Whats the history of it,has it been dropped,liquid damage etc
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • vinifera
          Vinifera
          • Aug 2018
          • 28
          • Belgium
          #3
          Re: problem with an ipad4

          i bought on e-bay a defect ipad (no backlight) and i see the apple logo on / off but not possible to put in recovery mode by i-tunes error 4005
          The PCB looks fine , and i think i made a short by measuring , because before PPVV_main was stable on 3,75 V

            Comment

            • vinifera
              Vinifera
              • Aug 2018
              • 28
              • Belgium
              #4
              Re: problem with an ipad4

              i think that PPVCC_MAIN has to be stable before going further ?

                Comment

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