Repaired a GameBoy Color that didn't turn on, no display, and a bit of corrosion on the cartridge slot that caused my game saves to get destroyed and some game to not start up.
Used 30AWG wiring, solder, flux, and exposed trace copper to fix the switch issue, reflowed the IC between the volume wheel and the CPU to fix the display issue, and removed the corrosion from the 1 pin on the cartridge slot using IPA, DeoxIt F5 (couldn't find my D5), and a small screwdriver (flat tip).
Also, I fixed my Pokemon Red game by swapping the Blue ROM out and installing the Red ROM onto the cartridge board and it works without issues (also restored my save thanks to the backups I have).
Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser