Introduction

If your YCCTEAM YCC-SW4001 shoulder buttons (L, R, ZL, and ZR buttons) have debris under them, are broken, or are not functioning properly, you can follow this guide to clean or replace them.

The shoulder buttons are used as inputs for the controller and have different functions across different games. This guide requires taking out an extra ZIF connector compared to the other guides. It is not dangerous, but the ZIF connector is very thin and could break with too much force.

To take out the ZR and ZL buttons, a metal rod needs to be taken out. This is the most difficult part, and while it doesn't require any technical skills, it is difficult to maneuver the rods out from under the buttons.

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    • Use a Phillips #1 screwdriver to remove the eight 9.15 mm screws that secure the back case.

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    • Use an opening pick to pry the back cover off of the controller.

    • This exposes the battery’s housing.

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    • Use a Phillips #1 screwdriver to remove the three 9.15 mm screws from the back of the controller.

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    • Delicately lift the front case slightly by pulling it away from the back case.

    • Do not remove the front cover completely; it is still attached to the motherboard by a white ribbon cable.

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    • Use the tip of the opening pick to flip up the black locking flap of the ZIF connector.

    • The black flap holds the white ribbon cable in place.

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    • Use tweezers to disconnect the white ribbon cable from the ZIF connector.

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    • Remove the front case.

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    • Isolate the front cover.

    • Flip over the front cover and remove the four 5.77 mm screws from the back of the front cover using the Phillips #1 Screwdriver.

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    • Flip up the ZIF locking flap.

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    • Disconnect the cable from the ZIF connector using tweezers or by hand.

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    • Remove the circuit board and shoulder buttons assembly from the front cover.

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    • Remove the R button by hand.

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    • Remove the L button by hand.

    • Flip the shoulder buttons attachment and look at the metal rods.

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    • Remove the metal rod under ZL using the small needle nose pliers.

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    • Remove the metal rod under ZR using the small needle nose pliers.

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    • Remove the ZL and ZR buttons by hand.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Sam Borwick

Member since: 16/02/24

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