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  1. M

    820-01700 Not turning on

    0.67 coil (L7030? is this the coil/inductor to measure? sorry im a noob so I've been reading the Rossmanngroup repair guide but I couldn't find anything about coils) gets 4.02 in diode mode
  2. M

    820-01700 Not turning on

    R7020 = 5.7v F7000 & F7001 have continuity diode mode to ground at PPBUS_G3H = 067 No 3V3_G3H
  3. M

    820-01700 Not turning on

    I have what I thought was a clean 820-01700 board not turning on. After close inspection under a microscope I could see there was a tiny amount of crap on F7000 chip. With the power plugged in the board is sitting at 1.33v and not turning on. Could you please tell me where I should go to from...
  4. M

    2014 15” retina MacBook Pro - won’t fully boot into macOS

    2014 15” retina MacBook Pro - won’t fully boot into macOS. It’s gets stuck half way not matter the boot source. Running the D hardware test shows no error. Gpu gets hot and booting in safe mode I got the following pic. Is this a failure that can be repaired ? Or maybe something simple like...
  5. M

    2015 15" Macbook 820-00426 a1398 - Trackpad issues

    Thanks for your help, I ended up creating a new user admin and this solved the issue.
  6. M

    2015 15" Macbook 820-00426 a1398 - Trackpad issues

    resistors and traces RA294-99 look ok
  7. M

    2015 15" Macbook 820-00426 a1398 - Trackpad issues

    Ok so I plugged in a USB keyboard and all the keys work. I replaced the trackpad+cable and the keyboard. The MacBook does the same thing. The trackpad works and all the keys on the replacement keyboard work before logging into the macOS. After logging into macOS the trackpad stops working...
  8. M

    2015 15" Macbook 820-00426 a1398 - Trackpad issues

    Happy New Year guys! I have a 15" MacBook with a trackpad that works when you press option/alt and choose the start up drive however once the Mac is booted into the OS the trackpad is unresponsive. I changed trackpads and cables and no change. A couple of keys are not working as well, I have...
  9. M

    820-2915 no video capture devices were found

    Hi, I swapped the screen out but on this 2011 15" Macbook however the camera is still not detected. I can't see any liquid damage near the connector for the webcam. Could you please advise me on where I should start problem solving this board?
  10. M

    A1398 display issue

    I have an a1398 that has a display issue as pictured , I changed the cable but the issue persists. Is this display toasted or is there a chance there could be an issue with the board?
  11. M

    820-3332 Backlight issue

    Q9706 Pin 1 - 0v Pin 2 - 0v Pin 3 - 1v Pin 4 - 11.7v Pin 5 - 0v Pin 6 - 0v Q9707 Pin 1 - 0v, Pin 2 - 3.2v Pin 3 - .7v Pin 4 - 0v Pin 5 - 0v Pin 6 - 0v
  12. M

    820-3332 Backlight issue

    Q9706 Pin 3 .98v, Pin 4 11.7v and 0v on 1,2,5,6 Q9707 Pin 2 0.7v, Pin 3 3.24v and 0v on 1,4,5,6.
  13. M

    820-3332 Backlight issue

    I'm trying to diagnose a no backlight on a 2012 15" Macbook. When I measure voltage on pin 3 of q9706 the backlight turns on, as soon as I take the multimeter off pin 3 of q9706 the backlight turns off again. Should I replace q9706 ?
  14. M

    a1706 Trackpad issues

    So after swapping in a new trackpad and cable. I have returned the Mac with a new charger lead(even though I gave him 1 but he gave it to his daughter) Hopefully this corrects the issue. I read all the links about the Critical software update error however I could find nothing that pertains to...
  15. M

    a1425 - When camera is plugged in Mac will not boot into macOS

    Thanks for your help mate, I cut the cut off ALS_SCL/SDA lines on J3502 and the Mac boots fine with the camera plugged in and the best part, the camera works :)
  16. M

    a1425 - When camera is plugged in Mac will not boot into macOS

    Forget it! I get what you mean, Ill give that a go, thanks for your help 2informaticos!!
  17. M

    a1425 - When camera is plugged in Mac will not boot into macOS

    I ran the EFI ASD and this is the report with the camera plugged in and the camera checked out ok but yes your are correct about the ALS When you say cut off ALS_SCL/SDA lines close to J3502 what would that entail?
  18. M

    a1706 Trackpad issues

    Hey, thank you for the reply. After cloning the drive I am no longer getting a critical software update. The trackpad issue is intermittent and do not happen all the time. I have been using it for the last few hours and its been fine. Ill check those links, thank you
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