Hobbyist or repairer ยท for some experience
Gameboy Color Power Switch and Corrosion Repair
About this video
Cleaning the battery terminals and the power switch revives a yellow Game Boy Color that would not start, make sound or show a picture, according to the maker.
Good to know: Leaked battery residue is corrosive, so clean it with care and keep it off skin and eyes.
Why watch it
Three symptoms at once can suggest a dead board, yet the maker traces all of them to dirty battery terminals and the power switch, so cleaning comes before any soldering.
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