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MacBook Air 2018 not turning one

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    MacBook Air 2018 not turning one

    Hello, so I get on e-Bay an higly water damaged mother board, to replace another one with a dead T2. So I managed to fix the water damged one, after a day of schematic readings and components replacing. But I made a BIG mistake. The computer turned on, with backlight and everything, Apple logo showing but the power button wasn't working, so I unpluged the cable for audio jack and pwrbttn and pluged it in back.... And now it doesn't boot anymore, staying at 20V around 0.039-0.041 Amps. In the T2 power boot sequence the last line to get power is PP2v7_NAND, so the NAND is corectly powers on. But no PP3v3_S5 and don't understand why cause not shorted and I have PP3V3_AWAKE from the T2. Any help please?

    #2
    Re: MacBook Air 2018 not turning one

    Post your 820-xxxx number from your logic board so that we can reference the proper schematic.

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      #3
      Re: MacBook Air 2018 not turning one

      Originally posted by mon2 View Post
      Post your 820-xxxx number from your logic board so that we can reference the proper schematic.
      I will check that when I get back from work

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        #4
        Re: MacBook Air 2018 not turning one

        If I me rember well it is a 820-01521

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          #5
          Re: MacBook Air 2018 not turning one

          Originally posted by mon2 View Post
          Post your 820-xxxx number from your logic board so that we can reference the proper schematic.
          I comfirm, it is a 820-01521 mother board, I checked

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            #6
            Re: MacBook Air 2018 not turning one

            Can anyone Help me ?

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