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    A2251 820-01949-A 5.1V 0.24A on USB-C port after liquid damage

    So I've got this motherboard - 820-01949-A from an A2251 13" macbook pro. I am told the board previously had liquid damage (not told where on the board the spill was) - there are no visible signs, but it was cleaned about 2 years ago and stored since then. All four USB-C ports show 5.1V at 0.24A...
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    A1989 4.8V, 0.23A on USB-C charge ports after severe liquid damage

    3 out of 4 USB-C ports show a current draw of 0.23A at 4.8V while the 4th port stays at 0.00 A. I am told that the machine was severely soaked inside and run with the water still inside. There's residue visible around 3 small chips next to the left side CD3215 chip as well as at some capacitors...
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    A1708 820-00840-01 5v fluctuating between 0 and 0.65A on USB-C, no power

    Actually, when I have the battery plugged in, my type C charger doesn't even detect anything - no voltage or current shown. When I remove the battery, though, and plug in the rear USB-C port, the charger reading fluctuates between 0 and 0.65-ish amps. If I plug in the port that's towards the...
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    A1707 820-00281-10 2016 Powers ON, but no display (no POST?)

    Got a 2016 A1707 MacBook Pro with an 820-00281-10 board (Not sure what the difference between this and the 820-00281-A is). The laptop powers ON, the fans spin, touchpad haptic feedback works, but there is nothing on the display or touchbar, and the Caps Lock light doesn't do anything. My first...
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    A1707 820-00928 erratic 5V+bootloop on USB-C

    Got an 820-00928-A (no liquid damage, but a crude battery replacement some time ago, was working until now). Doesn't charge - USB-C port stays at 5V 0.2-0.3A, and bootloops every few seconds. BUT - if I leave all power from the board disconnected for some time (like 15 minutes) then plug in the...
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    A1466 2015 MacBook Air not charging or turning on, reverse charger light behavior after liquid damage

    The laptop had drinking alcohol spilled on it. Cleaned the board with (isopropyl) alcohol, replaced the keyboard, a week later it's dead with no power. When you plug in a charger, the LED on the charger lights up green. If I disconnect the battery from the motherboard and then plug the charger...
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    A2337 M1 MacBook Air stuck in boot loop

    I have an A2337 M1 MacBook Air that had coffee spilled on it, but there was no liquid at all visible on the logic board or audio/power button board. The laptop was stuck booting to the boot options menu, and if I tried to pick Macintosh HD it would pause, then reboot back to the boot options...
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    820-00281-A 2017 15" MBP Fan Control Transistor Q6000 broken, doesn't work after resoldering

    I have a 2017 15" MacBook Pro motherboard (820-00281-A) where the transistor in the fan control circuit (Q6000) accidentally got broken off the motherboard while doing a board swap into a new topcase. Result was that when I turned the computer on, the left side fan would run continuously full...
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    820-00840-A (2017 13" MBP) PPBUS_G3H at 1.1V, USB at 20V but 0.04A flowing, No Power or Charge

    I have a 2017 13" MacBook Pro motherboard (model 820-00840-A) that won't turn on. I measured the PPBUS_G3H line with a USB-C charger connected, and get around 1.08V (instead of 12V?). No short to ground in this line - resistance measures 1K ohms rapidly increasing to infinity. Fuses F3000 and...
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    A2141 820-01700 No LCD Backlight; 55 ohms between PPVOUT_S0_LCDBKLT and ground

    Hello, I have a 2019 16" MacBook Pro (A2141) with no LCD backlight (the laptop does power on, boot to macOS and display stuff on the screen, but the backlight is off so you have to shine a light at the screen to see anything). I tested the PPVOUT_S0_LCDBKLT line at the terminals of L8452 and...
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