Hobbies And Interests

How to Disable the Nes Lockout Chip

The Nintendo Entertainment System (NES) lockout chip prevents users from playing unlicensed or foreign game titles. However, it is also known to malfunction over time and prevent regular gameplay of licensed, domestic titles. Fortunately, with a quick modification, you can disable the chip so you can play all of your old games. Most people who perform this modification do not experience any issues, but, like with any game console modification, there are always risks and your console may stop functioning.

Things You'll Need

  • Phillips screwdriver
  • Wire cutters or scissors
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Instructions

    • 1

      Disconnect your NES from the TV and power source. Flip it upside down and use your Phillips screwdriver to remove the six screws holding the base in place. Lift the base off and set it and the screws aside. Inside, you will find a metal shield held in place by seven screws--remove them and the shield.

    • 2

      Locate the modulator. This is where the audio visual jacks lead into the console. Remove the two screws holding it in place. Find the six screws securing the cartridge slot to the circuit board and remove them. Lift the circuit board and cartridge slot from the console.

    • 3

      Disconnect the leads from the controller ports and buttons. There is a second metal shield on the bottom of the circuit board. Remove it and slide the cartridge slot forward.

    • 4

      Locate the lockout chip. It will have the phrase "U10 CIC" printed above it on the circuit board. On the chip itself will be model number information printed above and below the phrase "© 1986 Nintendo." This should be the only chip with "Nintendo" printed on it.

    • 5

      Hold the circuit board so that you can read the text on the lockout chip. On the bottom of the chip, you will see several pins. Cut the fourth pin from the left with a pair of scissors or wire cutters. Bend the top half of the pin upward to ensure it doesn't create a connection with the bottom half.

    • 6

      Work backward to replace all of the components of your Nintendo. When all of the components are in place, load a game into the console before completely fitting it back together and test it. Finish putting the console back together.


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