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  1. 2informaticos

    Apple MacBook Pro / Water Damage / 20V 1.4a /

    Almost short; dead NANDs... https://www.masterliuonline.com/products/a2141-nand-ssd-chip?VariantsId=10355 You can buy with confidence there. Watch the videos first.
  2. 2informaticos

    Apple MacBook Pro / Water Damage / 20V 1.4a /

    NANDs shouldn't go so hot as you mentioned. Lift L9580/1 and check diode mode to ground on SSD side. Compare with good board, or other MLB side.
  3. 2informaticos

    Macbook A1398 820-00136

    Check voltage pulse and diode mode for page 69 outputs. Also check page 23.
  4. 2informaticos

    Macbook A1466 820-00165 Intermittent Fan Spin

    Fan spins always when trigger SMC_ONOFF_L? Check ALL_SYS_PWRGD behavior? Compare diode mode to ground on CPU coils with good board.
  5. 2informaticos

    A2681 820-02536 no power

    Replace L8430...
  6. 2informaticos

    A1707 820-00928-A no backlight

    What about CPU core voltage? Can you confirm Caps Lock reaction, or USB activity?
  7. 2informaticos

    820-01598 stop working

    Maybe bad solders on CD3217 chip. Compare diode mode readinggs around it with the other channel.
  8. 2informaticos

    Apple MacBook Pro / Water Damage / 20V 1.4a /

    The MLB can switch to 20V before enabling SSD voltages; even with short there.
  9. 2informaticos

    820-3332 NO POWER

    "3 : 0v" Fix this problem. U7000 requires good ACIN signal; 4V aprox.
  10. 2informaticos

    A2681 820-02536 no power

    If short without MPMU, then must be a bad capacitor. Voltage injection method should help.
  11. 2informaticos

    A2442 820-02098 not charging

    I don't have such dump in my library...
  12. 2informaticos

    MacBook Pro M1 - 820-02020 stuck on 5V 0.21A

    Get replacement CD3217 chip from same model donor board.
  13. 2informaticos

    A1707 820-00928-A no backlight

    DP_INT_HPD still 0V? Tried known good LCD assembly again? External video missing now?
  14. 2informaticos

    A2681 820-02536 no power

    "PP5V_MPMU_BSTLQ_XW has 0.002 on diode reading" Not normal; did you check it once MPMU was out of board?
  15. 2informaticos

    820-00597 Boot with apple logo freeze

    Did you test disconnecting J6600? https://boards.rossmanngroup.com/threads/how-to-collection.60974/
  16. 2informaticos

    A2442 820-02098 not charging

    D5403 is just a protection for CC1 line. Remove it completely, to avoid any leakage.
  17. 2informaticos

    A1707 820-00928-A no backlight

    Bad trace to pin 1? However, 0.179 looks lower than expected at pin 3. You should change U9850.
  18. 2informaticos

    820-02100 20V 0.15A bootloop (DFU error 21)

    Use external switch method for DFU access. https://logi.wiki/index.php/DFU_Mode_Restore_(Macs)#DFU_Mode_using_external_switch Any chance to stay on in recovery menu?
  19. 2informaticos

    Macbook A2918 Keyboard / Sleep/Wake Issue

    The "wrong" keys are placed in same row, or column? Save data and try DFU restore.
  20. 2informaticos

    820-3332 NO POWER

    Keep out F7040/1. Post U7000's basic voltages: 2, 3, 9,12, 13, 14, 15, 17, 19, 20, 27.
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