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Hi, We have an M1 MacBook Pro in right now that is stuck on 5V. Customer states it ran out of battery then wouldn't charge. The board is clean with no signs of liquid anywhere. I have tested all LDOs and none have shorts, I am getting 12.28V on PPBUS_AON but 0v on PP3V8_AON. No shorts that I...

Hi, got an M1 MacBook Air on the bench. Unit is extremely clean with no signs of a drop or liquid. Unit will power on as normal but will only charge NORMALLY from the USB C port closest to the user. the other port stays at 5V 0.3-0.4A and no cycling (CORRECTION - unit CHARGES at 5V3A when...

Another 820-00923 that had severe liquid damage. I had to replace the thunderbolt controller chips, the U7000 charging IC and remove a short circuit on PPBUS_G3H to get it working. It works great when it isn't in sleep mode or trying to update. I am actually typing this message from this board...

I have got an 820-00923 with some heavy liquid damage around one of the thunderbolt sockets. It has been cleaned and components replaced to the point where it will turn on and pass AHT with no issues. but as soon as I type the customers password to login, the loading bar starts and then the...

Got an 820-3437 Air on the desk which was turning on intermittently. U1930, C1930 and R1931 were corroded. Replaced and unit is booting but does not see serial number. SPI traces all good. I ordered and replaced the EFI chip which was meant to be pre programmed but still have the same issue. I...

Hi everyone, got an 820-00281-10 on my desk that has no signs of corrosion or liquid damahe and was told it just died one day. I started out getting 20v on the charger but not drawing anything. I then found that I had all S5 rails and S5_PWRGD but no PM_SLP_S5_L. I found that PP3V0_G3H was only...

Hi, I've got an 820-3437-B that won't recognize the iSight camera. Board was liquid damaged and had no backlight, no battery charge, wouldn't run on battery etc. Fixed everything except this last issue. Checking U3900, PP0V675, PP1v8_CAM, PP1v35_CAM and PP1V2_CAM are all present during boot...