The seller likely has something called 'AutoRCM' installed on the system. This is not a bad thing and the blank screen is normal. 'AutoRCM' means you do not need what is referred to as a 'Jig'.
Basically, in a powered off state the switch needs...
Problem Resolved!
Before I get to that, a response:
Apologies for the delay. My internet and cell went out for the past ~30-40 hours and wasn't able to respond in a timely manner. Regardless, I decided to do more testing (apologies for not...
FailST, the exploit that launches Aroma launches too late, when the Gamepad is already turned on. The Already mentioned PadCon can turn it off again. It's properly off then, not just the screen.
To prevent IOSU from turning the Gamepad on, you...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi