GoKawiilFloppy Emu Maker Traces Mysterious Boot Failures in New Circuit Board Batch
A developer of the Floppy Emu disk emulator found that a new manufacturing batch failed quality assurance with strange symptoms: some boards wouldn't boot, others showed erratic 'haunted' behavior jumping through code, and one ran in slow motion. After months of setting the failures aside, the developer began systematic debugging with power checks, solder reflows, and a hardware debugger to isolate the cause, suspecting a change introduced by a new subcontractor at the contract manufacturer.