Help locating short in iPhone

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  • caphair
    Badcaps Legend
    • Nov 2011
    • 1249
    #1

    Help locating short in iPhone

    Hi guys I'm working on an iPhone 6s+ that has a short on the vcc_main line.

    I've soldered a wire to the vcc_main test point and applied power from bench supply. It draws 3 amps but I can't feel anything getting warm.

    Ive also tried using freeze spray, nothing. Usually doing this makes it evident what's shorted but this time it's not.

    Any tips on how to locate the faulty component?
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31278
      • Albion
      #2
      Re: Help locating short in iPhone

      increase the current?

        Comment

        • caphair
          Badcaps Legend
          • Nov 2011
          • 1249
          #3
          Re: Help locating short in iPhone

          It's maxed at 3 amps

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31278
              • Albion
              #4
              Re: Help locating short in iPhone

              consider building a new psu?

              my next project!
              http://www.banggood.com/DP50V15A-DPS...p-1072236.html

              http://lygte-info.dk/review/Power%20DPS5015%20UK.html

                Comment

                • sam_sam_sam
                  Badcaps Legend
                  • Jul 2011
                  • 6070
                  • USA
                  #5
                  Re: Help locating short in iPhone

                  Originally posted by stj
                  consider building a new psu?

                  my next project!
                  http://www.banggood.com/DP50V15A-DPS...p-1072236.html

                  http://lygte-info.dk/review/Power%20DPS5015%20UK.html
                  I just bought one of these power supply I watch the video I was impressed with what I saw but we will see when I have it in my hands just what will it do
                  Last edited by sam_sam_sam; 01-07-2017, 07:15 PM.

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