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Step 1
Blow on the game cartridge before placing it in the console. NES game cartridges attract dirt, which you can often blow off.
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Step 2
Dip a cotton swab into a window cleaning solution. Rub the swab over the game’s contacts to remove any dirt buildup. Repeat until the swab shows no signs of debris. After cleaning, rub a fresh cotton swab over the contacts to dry them.
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Step 3
Use a nail file. If the system has trouble reading the cartridge, rub a nail file lightly over the contacts. Apply light pressure to avoid irreparably damaging your game.
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Step 4
Check the console. If you still experience problems with your NES games, clean the game console. Remove all the parts and clean the pin connector with rubbing alcohol.










