The Weirdest Asus TUF Repair: Perfect on AC, Dies on Battery (0V Mystery Solved!)

We have a fascinating diagnostic puzzle on the bench today. This Asus TUF FA507 runs flawlessly when plugged into the wall, but the moment you switch to battery power... chaos. Freezes, weird memory Blue Screens (PFN_LIST_CORRUPT), and eventually, the battery completely trips its protection circuit and drops to 0V! In this video, I walk through the complete troubleshooting process. We start by ruling out the usual suspects like Asus Armoury Crate software bugs, bad RAM, and power state driver issues. When flexing the chassis triggered the crash, it was time to pull the board and get the multimeter out. I even went as far as resoldering the battery connector and replacing the BATFET, but the issue persisted. The ultimate fix came down to the golden rule of board repair: isolate your peripherals! Watch how a tiny, seemingly unrelated component was pulling down the whole system and sending the battery's BMS into a panic state. #AsusTUF #LaptopRepair #MotherboardRepair #RightToRepair #TechRepair #Electronics #BSOD #Diagnostic #FA507 #HardwareRepair