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So i got a Macbook Pro 16 in last week with no power (5V 0.30A). Diagnosed it down to PP2v5_NAND_SSD0 shorted - injected 1V onto that line saw U9580 heating up - under close microscope inspection can see U9580 had exploded - removed U9580, replaced and now got 20V 0.30A draw and looping. One of...

So i've got an A1989 2018 year model in - stuck on flashing folder with ? Internet recovery I have tried with multiple different wifi networks and it doesn't start it gives the 2003F error every single time. I tried to boot to external drive with Mac OS on it - you can't do that because of...

Now i'm already 90% certain the SSD is dead on this one but if there's anything else I can check let me know! 820-01041A received with liquid damage around U9000 and U9080 - cleaned up all and: Board Charges the battery USB C meter negotiates to 20V but does not start no fan spin. All...

So got my first 820-02536 board in today for repair - customer says it just turned of by itself completely negating to tell me the full story of the liquid spilled onto it! Anyway originally when it came in I had 5V 0.3A power draw, after taking the board out I found heavy amounts of corrosion...

Just had a very clean 820-4924 board in today, but it's not posting/chiming. The CPU is heating up when the charger is connected as is the SSD, no image on the screen and no USB activity however. SMC reset works normally (light changes on the charger) No visible signs of corrosion anywhere that...

Just got an 820-01958-A in symptoms are stuck at 5V on USB-C Meter, no signs of life and 0.10a current draw. Visual inspection reveals: Damaged flex cable between audio board and main board No visible corrosion or water damage present. Device is not visible when connected to another mac with...

Got an A1707 820-00281, symptoms it takes 20v but doesnt draw any current. PPBUS_G3H, PP3V3_G3H are all present at 12.58v and 3.3v No S5 or SUS voltages are present and there are no shorts which I can find. PP3V3_PMICLDO = 3.3V PP1V25_PMICVREF = 1.24V PP3V0_G3H = 3V PM_SLP_S5_L is low 0.2v To...

So got an A1708 in today doesn't appear to turn on, When the charger is connected it does go up to 20v and also appears to charge the battery - the trackpad clicks but nothing on the screen. No fan spin but the CPU does appear to be getting warm. Caps lock doesn't light up when pressed, PRAM...

So last week I got in an A1708 with 820-00840 board just for a straight battery swap, took the old battery out as usual no issues, connected new battery up powered on and I get the flashing folder with ? symbol. Replugged the SSD - same behaviour - unplugged battery and tried without battery -...

Got an A1990 820-01814 which is stuck at 5V with no current draw. Occasionally it does switch to 20v and also with no current draw and no power but i havent seen it do that very often! It was slightly liquid damaged around JB200 and C9080 - i've cleaned up both areas and no issues there, have...

So a little bit of backstory on this one I received an A2338 820-02020 in for repair again. This is a device we previously repaired around 9 months ago for no power - in that instance we replaced one of the CD3217's (UF400) as it was burned out which fixed the problem. Same device has come...

So i've got an 820-01958 liquid damaged and it's stuck at 5V 0A - it's been ultrasonic cleaned and looks good now. Only real area of corrosion was around U6960 where we had R6960 loose and has been replaced. All other resistors are connected and measuring normally. PPBUS_G3H is 12.3V Device is...

So I had a bit of free time to look through some of my boards with weird issues and I had this 820-01958 which had sound only from headphones - no sound from speakers at all. Troubleshooting got me to SPKRAMP_RESET_L having an odd diode mode reading (0.002) and 20ohms to ground. Obviously went...

So I have an 820-01958 in for fixing now - was liquid damaged but customer neglected to tell us this before we opened the device and found it. So we had liquid damage and a burned port going to the type c ports - we also had liquid damage around the top CD3215 controller. I've replaced the...

Got an 820-02098 in which had liquid damage. I've gone through the board under the microscope cleaning all areas I could find any issue with and i've run the board through the ultrasonic. I ran through the power on sequence on the repair wiki and found that PPBUS_AON was shorted - i've...

So I got an 820-1521 in today - completely dead no sign of liquid anywhere. No damage visible - the machine is stuck at 5V on both ports. PPBUS is 12.31 PP3V3_G3H_RTC is present. PP5V_G3S and its associated enable is missing. Awake and Sleep voltages are also all missing. Not detected at all...

Got an 820-01949-07 in today - problem is it won't start up - stripped it down to just the board and charger and it takes 20V 0.09A current draw. Popped it under the thermal camera and the only thing which is heating slightly is U9080 - nothing visible shorted on the NAND power lines either...

So i got an 820-00850 in today - was originally fully shorted out stuck at 5V which I identified to a burned cap. Now the board turns on and works fine but the left fan as looking at it from the bottom runs at absolutely full speed (right one working normally) and also continues to run after the...

Posted this in the wrong section by accident somehow so apologies for that! Reposting here: Got an 820-00165 here on the bench which is causing some confusion. Green Light is there which turns orange as normal, ppbus present 8.6V. Visual inspection revealed tiny amount of corrosion around...

Got an 820-00165 here on the bench which is causing some confusion. Green Light is there which turns orange as normal, ppbus present 8.6V. Visual inspection revealed tiny amount of corrosion around u1930 - pulled this off replaced from a donor board and still no power. Pulled it off again and...