Post #1490346

@TeflonTrout @FrankauLux It's also possible to be a BIOS bug. I've had a laptop which hung instead of booting if one did as much as enable boot from USB (even if no USB device was connected to it), and was fixed by installing new firmware. Now, this is clearly different, but maybe check if there's a firmware upgrade mentioning USB issues, or at least other people reporting USB issues to the manufacturer?