Fixing eBay Junk - Game Boy Color Pokemon Edition - No Power or Sound

I recently picked up a Game Boy Color special pokemon edition. It won't power on. I go through some troubleshooting and end up getting this working.

Want to buy me a beer? Or a broken console? Hit up the donate link (But only if you want, don't feel obligated). https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=NSPGDNFDRBMJW

Thanks for watching