I've also had some dead boards at recommended settings. I've been very careful and understand the risk. I wouldn't have bothered posting about it because I know their can be consequences. What the other poster stated was true, although it has been a small number in my situation. To be clear I'm not blaming or crying, I know what can happen the minute I flash a aftermarket firmware.

EDIT: I'm trying the firmware on S17 56T, S17 50T Pro, S17 53T Pro