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Hi, I have upgraded a M3 Air Macbook from 256GB to 2TB and now it is dead. I did this upgrades to M2 and M3's several times without any issues but this time board is dead. Voltage goes up to 20v after some seconds goes to 5v then to 0v abd goes up to 20v. This behaviour is repeating. It looks...

Good day friends, I have actually this board here and I don't really know where to start to search. Sometimes it power on with apple logo and it is booting with full fan speed and very slow. Sometimes it is drawing current about 600-700mA fan full speed and nothing happens no screen. Tried to...

So I have this board here, no liquid damage, the macbook looks like new. I checked some voltages and found out that PP3v3_S5 is missing. There is no short on this line, resistance is 112kohm. Some measurments: PPBUS_G3H = 12,60V PP3v3_G3H_RTC = 3,390V PP3v3_G3H_PMU_VDDMAIN = 3,355V PP3v3_S5 =...

Good day friends, so I have here this MacBook which is drawing 20V 180mA only the Mainboard and 1,4A with battery. No Apple logo no boot. Here are some voltages: PPBUS_G3H = 8,70V PP3V3_G3H = 3,30V PPDCIN_G3H = 19,7V PP3V3R3V0_AON = 3,3V PP5V_G3H = 5,1V PP5V_S4 = 5,1V PP5V_S0 = 5,1 PP3V3_S5 =...

Hi, I have this board here and PP3V3_G3H is 0,0V and PM_EN_P3V3_G3H is also 0,0V. Charger stuck at 5V and 32mA. Sometimes when board is lying around it switches to 20v also 32mA. But if you plug in plug out and so on normally getting only 5V. ISL9239 is getting 5volts but no output on...

Hi guys, so I have this macbook here and it have 3 problems. History not available, no water damage. 1) Touch bar not working, changed with known functional touch bar 2) Critical software update 3) Graphic errors on display and external display, no errors when in safe mode According to the...

So I have here this macbook pro 15" A1990 which produces this error codes in the diagnose mode. The fans are spinning high and the macbook is very slow. What I read about this error, that changing the touch pad will solve this. So I put this mainboard in an second functional macbook and the...

Hi, I have here this board on my desk and it have strange DC readings. No power no green light, complete dead. No water damage. Voltages: PPDCIN_G3H - 15,00V this should be 18,5v? R7005 Pin 1 - 15,00v R7006 Pin 1 - it starts with 0,7v and goes after a while below 0,2v D7005 Pin 3 - 14,11v...