820-3115 b MacBook Pro no usb working

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • lordgeny
    Badcaps Veteran
    • Apr 2016
    • 223
    • Italia
    #1

    820-3115 b MacBook Pro no usb working

    Hi i have this laptop with usb not working , i found u4600 heating .
    I found PP5V_S3_USB_A_ILIM short to ground . What can i do ??

    i thinked remove u4600 and inject 5v on the lin to see what heat up
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4439
      • France
      #2
      Re: 820-3115 b MacBook Pro no usb working

      Chances are the culprit will be either U4600, D4600 or the connector J4600 itself that's damaged. I'd start by removing D4600, the most likely to be shorted if connector looks fine.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • lordgeny
          Badcaps Veteran
          • Apr 2016
          • 223
          • Italia
          #3
          Re: 820-3115 b MacBook Pro no usb working

          fixed was c4695 in short , no need to remove and inject voltage , caps was visible damage under scope

            Comment

            • lordgeny
              Badcaps Veteran
              • Apr 2016
              • 223
              • Italia
              #4
              Re: 820-3115 b MacBook Pro no usb working

              that it
              Attached Files

                Comment

                • piernov
                  Super Moderator
                  • Jan 2016
                  • 4439
                  • France
                  #5
                  Re: 820-3115 b MacBook Pro no usb working

                  Ah right, I missed c4695. Good job!
                  OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • obelix24
                      Macbook Air 2020 (a2179) - touch id not working
                      by obelix24
                      Hi i have one Macbook Air 2020 where touch ID is not working (it's not scanning fingerprints). Touch ID was working before, there is no error message during scanning fingerprint it's just not scanning on screen you can see only fingerprint but there are no red updates as when it's working. Power button is working fine.

                      I've checked boardview and also schematics but i'm not able to find anything related to TouchID ... i have similar issue on a2338 where there was problem with PP3V0_TOUCHID​ and after replacing UT610 it was working but here i'm not able to find anything related to...
                      02-09-2025, 12:57 PM
                    • ahmarzo
                      MacBook Air a 1466 keyboard and touch not working
                      by ahmarzo
                      Have a MacBook Air a 1466 with part no 820-00165-a with keyboard and touchpad not working.have tried another working keyboard and touchpad.have check the cable to board and it's good
                      The voltage on connector j4800 is following
                      Pin no 1-3.3v
                      Pin no 10 3.3v
                      Pin no 14 - 5v
                      Pin no 15-20 all pins have 3.3v

                      Have reballed the ic u 5000. And tried another ssd with working os .
                      10-18-2025, 10:40 AM
                    • obelix24
                      Macbook Air a1932 only right speaker working
                      by obelix24
                      I just got one macbook air a1932 that is fullu working (no signs of liquid damage but there is strange issue that only right speaker is working (that one that is connected directly to audio board)
                      the other one is not working at all.

                      i've tried to replace left speaker 3x and still no sound, i've also replaced audio board but still the same.

                      Do you know what can cause this issue ?
                      10-30-2024, 01:31 AM
                    • biosdi
                      MacBook Pro A1989 trackpad and keyboard not working
                      by biosdi
                      Hi guys.
                      I Just replaced battery on my MacBook Pro A1989. Unfortunately doing that, I’ve broken the trackpad flex cable (821-01701-a), and I’ve already ordered a spare one. At the same moment I’ve noticed that also the keyboard it’s not working anymore and I’ve found an SMD chip unsoldered and moving freely inside the backplate. I can read L20L on the chip. Is something could explain the keyboard not working or the keyboard doesn’t work due the unconnected trackpad?




                      thanks...
                      04-17-2025, 09:42 AM
                    • daltonjr.
                      MacBook Air M2 820-02536 trackpad not working
                      by daltonjr.
                      Hi,

                      I have this MacBook that I can not restore, because trackpad is not working. I have tried other topcases, trackpads, cables.... no su​ccess. I have replaced UT360 twice and UT320, no lu​ck.

                      Main power lines are present, but at:

                      SPI_IPD_MOSI_CONN = 0V
                      SPI_IPD_MCU_CS_CONN_L = 3.28V​
                      SPI_IPD_MISO_CONN = 0V
                      IPD_SYS_AWAKE_CONN = 0V

                      Maybe someone has better u​nderstanding of these circu​its and can help. Thank you​.
                      ​
                      09-22-2025, 06:32 AM
                    • Loading...
                    • No more items.
                    Working...