Introduction
If your Nintendo NES Advantage Model NES-026 joystick is stiff or has no range of motion, you may need to replace your joystick spring.
To replace the spring you will need to have another spring that is the correct size as well as a Phillips #0 screwdriver and a spudger.
When replacing the base of the joystick, be sure to line up the marks correctly or your joystick won't move at all when you reassemble your Nintendo NES Advantage.
The joystick spring ensures that your joystick has full range of motion, giving you the ability to move freely throughout your game.
Tools
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Remove the six 8 mm screws from the bottom of the device with a Phillips #0 screwdriver.
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Use your hands to pull the back panel away from the controller.
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Remove the four 12 mm screws from the small square panel on the right with a Phillips #0 screwdriver.
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To reassemble your device, follow these instructions in reverse order.