Please remember to provide as much information as possible including all troubleshooting steps you have already taken. If this is a hardware issue, please provide clear in-focus images of the issue, PCB (circuit board), installation, and any soldering you have done. Help us help you, posts with insufficient information will be deleted
Because this post has the "Game Boy Color" tag, we recommend checking out this wiki page https://gbwiki.org/en/consoles/color
Once your issue has been resolved, please click the "Solved" button (This will lock your thread)
Game Boy Wiki