Ok, so I soldered the 4 wires and applied the heatsink without too much trouble. It's not beautiful solder work, but it gets the job done.
I put everything back together and it works... kinda. It works over HDMI, but it does not work via the built-in screen. Controls and everything work fine. Any tips? I've been messing around with the config file, but I'm not really sure what I'm doing. Using Retropie btw.
I should mention, and this might actually be the issue, I'm using stock Retropie. The seller provided a download for Retropie, Lakka, and something else, but it was on a Baidu website where everything was Chinese, it wanted me to install a program and create an account. Everything looked really sketchy so I noped out. But I'm thinking that specific build had everything configured correctly and maybe I should go back and download it. Any advice from anyone?