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Hi there. This Macbook came in with no power. Stuck at 5V on both USB-C ports and hovers between 40mA and 26mA, never gets to 20V. . I believe it was a cheap power cable that caused this.
Board is 820-00840. PPBUS_G3H is missing, all other necessary voltages appear to be present. There are no...
I have a L-2011 820-2936 here that came in with a no charge issue. Battery tested faulty. Board will not power up fully on charger with battery connected (fan spin for 3 seconds then power off) Zero signs of liquid or corrosion on board. Will boot with battery AND charger connected, but will not...
Hello. I have a 2015 15" MacBook Pro here that all of a sudden fails to chime or display an image following removal of the logic board and thermal re-grease. Its an 820-00426 Board. I tested this unit fully before disassembly and it ran perfect and passed all diagnostic tests. There is ZERO...
Hi there. I have a liquid damaged unit here. 2016 13"MBP 1706 (820-00923)
It originally had a no power issue due to issues one of the CD3215's. I resolved that issue by cleaning up the areas that were corroded and then tested all capacitors and resistors. The board was now able to power up but...
I am attempting to recover data off of an A1707 2016 Touchbar - 820-00281. It refuses to boot either one of the two accounts, with filevault enabled, but will boot into Guest mode. I have also made several attempts in connecting the drive via Target disk mode. The machine successfully enters...
I have a 2020 M1 MacBook Air here that my client claims water was spilled on. There is no image on the display, but the backlight is on. There are no signs of liquid damage on the display or connector. I tried another known working screen and ended up with the same result. I proceeded to remove...
Hello
Liquid damaged board, A1466, 2015. There was a bit of corrosion around PP3V3_SUS chip (U8020) but I cleaned up the area and its working. I tossed it in the ultrasonic to rule out any hidden corrosion.
Charger is taking 29mA and not turning on.
PP3V42_G3H=3.42V
PPBUS_G3H= 8.56V...
Hi there
I removed the trackpad assembly/cable on an 820-00850 (2018) to install new battery in this unit. Cable is not damaged in any way, nor the trackpad. after reassembly, there is no click and no cursor. Keyboard is working fine. I tried another trackpad with no success. What might the...
Hi there. I just replaced the display on an A1706 (2016 13" Touchbar) and after installation, the machine would not boot up fully (20V @ 200-400mA, no image, no chime) Inspection using thermal camera indicated U7600 was getting hot. I proceeded to remove the board and test. I connected power and...
Client was using their 2020 13" MacBook Pro and it gave a low battery warning, after plugging in the charger for one minute, there was a small "zap" sound emanating from the speakers, then the machine just shut off and never turned back on. Heres what the charger is doing:
Google drive video
I...
I have an 820-00138 that had corrosion around the display connector area, and had no image. After a quick clean with alcohol and a toothbrush, I was able to get an image, but the area needed to be touched up to be reliable, and replacement of the LVDS connector and display cable was also needed...
Hi there
I have a A1989, 820-00850 board that is not powering on. When i plug in the charger it switches from 5V to 20V, 200-300millamps for about 4-5 seconds and then drops to 0 milliamps. It stays like this for about 10 seconds and then goes back up to 200-300 milliamps, 20V for a few seconds...
Hi there.
I have a board here that had a small amount of liquid around the keyboard backlight connector causing it to randomly shut off. I repaired the corrosion as well as some bad traces arounf this connector, then tested for any shorts. I then cleaned the board with my ultrasonic cleaner...
HI there. I have an intermittent issue with this board that I am able to replicate. Currently its pulling 130ma off the charger @18.5V. There was no liquid damage on this board. If I unplug and re-insert the magsafe (off the DC power supply set @19V) over and over, eventually this board will...
Hi there.
I successfully repaired this board a few days ago after it failed to power on. There was excessive buildup of corrosion around the SMC as well as a few other components. I had to repair traces and replace multiple damaged capacitors and resistors using a donor board. What finally got...
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...
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...
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...
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...
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...