They finally figured out[1] why some docks would brick the Switch. The bad docks were implementing USB-PD in microcontroller and putting too much voltage on pin

They finally figured out[1] why some docks would brick the Switch. The bad docks were implementing USB-PD in microcontroller and putting too much voltage on pin. Proper USB-PD adapters are fine; it is only a couple Switch-specific docks that were problematic. 1: https://arstechnica.com/gaming/2019/08/heres-why-nintendo-switch-consoles-keep-frying/ https://arstechnica.com/gaming/2019/08/heres-why-nintendo-sw...