Recent content by SmartDoc

  1. SmartDoc

    MacBook Air A1932 – Kernel panic, fans ramping up, login impossible (data recovery needed)

    it goes into target mode, I'm extracting the data and then I'll proceed to format it hoping that the card has no problems. For now THANK YOU SO MUCH!
  2. SmartDoc

    MacBook Air A1932 – Kernel panic, fans ramping up, login impossible (data recovery needed)

    Hi everyone, I’m working on a MacBook Air A1932 that’s showing a very odd and blocking behavior. The system takes a long time to boot, and once it does, it automatically logs into the guest account, ignoring the two existing user accounts. From the guest desktop, the system is extremely slow...
  3. SmartDoc

    820-02098 board with no audio (A2442)

    To find out which frequency range the amplifiers belong to, follow the signal to the FPC of the speaker, there it says woofer or tweeter
  4. SmartDoc

    820-02098 board with no audio (A2442)

    Hi, yes all 6 amplifiers must be working properly to enable audio output.
  5. SmartDoc

    iMac M1 A2439 (820-02188) – 3 LEDs On but No Boot

    the new PM already cost me €60, damn it... I can't find donor motherboards anywhere, do you have any? :(
  6. SmartDoc

    iMac M1 A2439 (820-02188) – 3 LEDs On but No Boot

    ok thanks for the precision but sorry I'm new here :) I tried in every way with Force_Dfu but in any case it doesn't go into dfu and DFU_STATUS is always 0v.. now I'll try to do another test by assembling the mac in the body and connecting the display (could it be the lack of the latter that...
  7. SmartDoc

    iMac M1 A2439 (820-02188) – 3 LEDs On but No Boot

    Hello, is my great pleasure to be here :) yes C8300 have 5v, no activity on usb c ports, no dfu status. MPMU is brand new I already soldered RV001 but if i bridge SV000 Nothing happen. DFU_STATUS signal still 0v and in usb c have no dfu communication. Also i don't have any activity on...
  8. SmartDoc

    iMac M1 A2439 (820-02188) – 3 LEDs On but No Boot

    Hey everyone, I received a completely dead iMac M1 (A2439, 820-02188, 2-port version) — no signs of life at all when trying to power it on. I disassembled it and checked the debug LEDs — all off. Flipped the board and found a shorted capacitor near the main power manager. After some further...
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