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macbook pro a2141 20v 0.04A

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  • som_b1
    Member
    • May 2024
    • 21
    • Ukraine
    #1

    macbook pro a2141 20v 0.04A

    Hi. Help!!! I'm at a dead end. I removed the faulty SSD,
    removed the U9580,
    removed all the coils that power the SSD,
    removed the U9500,
    replaced others the cd3217,
    reflashed other the U2980
    and still on the board 20V 0.04A.
    There is no DFU!!!
    here are the measurements on the board:
    -P1V8_SLPS2R = 1.8V
    -PP1V1_SLPS2R = 1.1V
    -PP0V8_SLPS2R = 0.8V
    -LDO_RTC = 1.5V
    -PMU_SYS_ALIVE = 1.78V
    -PPVBUS_USBC_XA (B105 U3100) = 19–20V
    -PP3V3_G3H_RTC_X (near U3100) = 3.3V​
    -USBC_XA_USB_TOP_P = 2.3V
    -USBC_XA_USB_TOP_N = 3.3V​
    -TBT_X_SPI_CLK ≈ 0.15V
    -TSPI_MOSI ≈ 0.35V​ other pins on u2890 3.3v? ub090 equally
    Tags: None
    • som_b1
      Member
      • May 2024
      • 21
      • Ukraine
      #2
      Don't have 5v on both sides maiboard (cd3217 does not do 5v).

        Comment

        • PITERPENY
          Badcaps Veteran
          • Jul 2023
          • 527
          • Ukraine
          • microelektronics
          #3
          did you manage to solve the problem?

            Comment

            • som_b1
              Member
              • May 2024
              • 21
              • Ukraine
              #4
              hello. I got to the point that the reason is in the SSD. I removed everything, I don't have a donor yet and this board is on pause. When I do, I will definitely update

                Comment

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