Question How should I troubleshoot my trimmed Wii?

[EU_patty]

Hey guys, I just attempted my first boot test and realistically didn't get a signal. I was just wondering what are some methods of identifying where I may be having shorts or other problems so that I may address them. I'll also provide my wiring so there is additional context as to what I've done this far. I would also like to add that my 21700 battery is at around 3.5V.

 

[randomguy]

Hi,first you need to put at least two grounds wire from the wii to the PMS