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Hi there. I have an 820-00840. No power. Stuck at 5v and 0A from charger. There was some corrosion around CD3215's so I replaced with brand new ones (from your store) as well as ISL9239 (new) and U6990. PPVIN _G3H is 5V going into U6990 but there is no PM_EN_P3V3_G3H coming from ISL9239 even...

This system is running 11.4, which I believe is the newest version. SMC and PRAM reset apparently works with 2016/2017 MBP but this is an older L2013 A1398.

Did PRAM reset, SMC reset, completely drain and then charge to full overnight, SMC reset again, PRAM reset again. No change.

I have been successfully replacing batteries using "Original" Apple parts on several models of A1502, A1398, A1466 MacBooks. Systems that are running macOS 11 Big Sur are now reporting a "Service Recommended" warning in the menubar after installation. Booting into older OS (High Sierra, Mojave...

Webcam is disconnected. Only Magsafe and LVDS display connector attached, board is out of case on desk. Fans spin up after magsafe connected, then turn off after 8 seconds or so, then turn on again and ramp up to full blast. No image, USB power but no acivity to drive connected.

Thank you. I connectectd original 85W and board turns on but no image on screen and fans spin full blast.

Hello This machine was working fine until i disassembled it and replaced the display. There was a fair bit of dust and debris inside and I found corrosion around U5420. I removed the corrosion and reflowed the area and PM_SLP_S3 is still missing (0v). Power adapter is 18.5V @ 20ma. Where do I...

This MacBook was purchased in working condtition and the top case, screen, and battery were all replaced. It was in my posession and worked beautifully for a week before I sold it to a customer. It started acting up days later after a faulty/cheap USB-C cable was used for charging. I have had it...

I have a 2016 A1707 820-00281 Machine here that slowly starting acting up (shutting off randomly, no power) I have had it back in my shop four times and it just randomly starts working again after removal and reinstallation of the logic board. Currently this is what the board does (removed from...

I removed, reinstalled and reconnected the battery and now its charging normally.

Hi there I have in my posession a 2012 MacBook Pro A1286 (Board 820-3330-B) that has been randomly shutting off while on power and on battery. The battery has been replaced. I have gone through and all the power lines seem good. The only anomaly is that the charger is pulling 18.5V @ 380ma...

Yes. Active Low. You're right Voltages for U7200: 16 - 12.59V 13 - 3.42V 3 - 2.00V 8 - 3.32V 17 - 5.02V 6 - 0.79V Thanks in advance

Green light on charger, pulling 28MA, wont turn on Missing P3V3S5, P3V3S5_EN_L (0V) no short to ground P5V3V_REG_EN is present SMC_PM_G2_EN is present Replaced U7941, no change Where do I go from here?

Hi there. I have an A1708 13" MacBook Pro. 2017 Year. I have no history of this MacBook. After removing bottom cover everything is clean and appears new. There is no indication any work has been done. Everything functions as it should, just high fan speed and system runs extremely slow. I...

It was the webcam! Thanks!

Hi I am having an odd issue with this board. It works perfectly when installed the case and oriented vertically, but when oriented horizontal...the fans kick in to high gear and these three sensors are tripped: Memory Module 1 Heatpipe Incoming Air Heatpipe Outgoing Air. The board is...

Can the screen be replaced on the 2016-2017 A1708 MacBook Pro with T2 Chip? WIll this chip see the new screen and prevent from booting? The reason I am concerned is because I replaced the keyboard/topcase in a 2017 A1707 15" MacBook Pro and it booted right into network recovery mode. When I...

I have an 820-3115-B pulling 120mA and not powering up. Green light on charger. Is able to charge battery. I have checked ALL voltages and they are all good. No short to ground on any power lines. I then went ahead and checked S0 PGOOD on Q7950 and ALL SYS PWRGD is only measuring .52V with all...

R6910, R6911 are both bad. Where do I find these resistors? Digikey and Mouser only have available in 10,000 quantity.

U6903 swapped out. PP3V3_G3H is now 1.7V, Charger is still at 5.1V, but now drawing 0 Amps. Here are the same measurements: Diode: R6915 = 0.362V C6905 = 0.572V U6903 Voltages: Pin2 = 5.02 Pin10 = 4.99 Pin1 = 6.52 Pin 3 =1.80 Pin 9 = 0.46 PPBUS_G3H is 0.24V