FW13 (13th gen) fully bricked

[xoe]

Check this thread it has more relevant steps for doing the mainboard reset to the 13th gen mainboards:

Intel 13th Gen Power On Issue

The way to do the mainboard reset on newer machines without RTC battery is to plug in power and then press the chassis open switch for 2 seconds, wait for the red open chassis blinkning and repeat 10 times and then start using the SW1 switch.