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  1. ipetro

    Macbook A1989 820-0850

    RAM T2 or motherboard?
  2. ipetro

    Macbook A1706 820-00923

    I removed the cable on the J8500 connector and found a burnout between PP5V_S0_ALSCAM_F and GND, possibly due to water damage. Maybe this will help determine the malfunction (no short circuit was found)!
  3. ipetro

    iMac 27 2017

    Hello ! I'm repairing an iMac with a bluetooth problem, the connection with the devices is lost, making it difficult to work with the trackpad and keyboard! AirPods and AirPods Max wireless headphones cannot be used, the microphone clicks in the headphones and the microphones lose connection! os...
  4. ipetro

    Macbook A1706 820-00923

    There are two options: bad T2 and bad CPU. And as I understand it, it’s impossible to check either one or the other?
  5. ipetro

    Macbook A1706 820-00923

    Thanks for the BIOS, unfortunately the behavior remains the same! no change 20V 0.215a
  6. ipetro

    Macbook A1706 820-00923

    I replaced the BIOS chip from another identical board, no changes! could you give me your bios?
  7. ipetro

    Macbook A1706 820-00923

    To reset SMC and NVRAM you need a keyboard, but as I wrote earlier, the touchpad clicks but the caps lock does not light up green when pressed, which means the keyboard does not work.it's just stuck at 20v and 0.200-0.218a
  8. ipetro

    Macbook A1706 820-00923

    I replaced the BIOS chip from another identical board, no changes! could you give me your bios?
  9. ipetro

    Macbook A1706 820-00923

    L7030=13,08v\diod mode 0.436 L8410=0.012v\diod mode 0.778 LB700=0v\diod mode 0.129 L9400=2.7v\diod mode 0.335 L7660=3.35v\diod mode 0.322 L7600=5.13v\diod mode 0.387 L7700=1v\diod mode 0.123 L7900=1.2v\diod mode 0.165 L7960=0.95v\diod mode 0.016 L8050=1v\diod mode 0.008 L8000=1v\diod mode 0.010...
  10. ipetro

    Macbook A1706 820-00923

    Did you try SMC bypass? No ! How ?
  11. ipetro

    Macbook A1706 820-00923

    The image is not displayed on the internal or external display. The fans don't spin, the caps lock doesn't light up, the touchpad clicks
  12. ipetro

    Macbook A1706 820-00923

    PPBUS_G3H=12.09V 20V 0.200A no battery 20V 2.200A battery conected
  13. ipetro

    Macbook A1706 820-00923

    hi 20V 0.200A no image where to begin ?
  14. ipetro

    MacBook Pro A1706

    Is it possible to change the display board?
  15. ipetro

    MacBook Pro A1706

    there is no image on the display but the backlight turns on, a MacBook works with the donor display! The problem is in the display itself in the controller. what to pay attention to? This is not the first display on which there is simply no image, although they themselves are in excellent...
  16. ipetro

    SSD MacBook A1708

    There is a burnt element on the SSD! please tell me what this element is and where else it is found? On which MacBook motherboards is it used or what can replace it?
  17. ipetro

    Macbook A2179 820-01958 no sound

    I see a tendency that all my MacBooks are being repaired with bad T2s, I think this time we don’t have to check anything else, it will probably be a bad T2 again (
  18. ipetro

    Macbook A2179 820-01958 no sound

    SPKRAMP_RESET_L=0.004V SPKRAMP_RESET_L= 0.00 short circuit
  19. ipetro

    macbook pro A1707 820-00928-A

    voltage 20v 2.5A, battery not connected, gets very hot near the processor
  20. ipetro

    macbook pro A1707 820-00928-A

    I replaced the chips and here is the sound again. please listen. What is this ?!
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