Introduction
This is a teardown guide on the GC Legacy wired controller by Retro-bit, Model Number RB-GC-4718, a 3rd party controller compatible with the Nintendo Gamecube and Nintendo Wii using a Gamecube controller cable and port.
This will show how to remove the screws, the membranes, buttons, and printed circuit board.
What you need
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On the back of the controller, there are four visible screw posts around the controller. Use a PH00 Philips head screw bit to remove the screws.
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A brand new controller likely has an inspection sticker on the bottom of the back of the controller.
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This sticker is covering a fifth hidden screw. Use a sharp object to peel off the sticker, then use the PH00 screw bit to remove the last fifth screw.
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After removing the screws, the back shell piece can be removed from the controller.
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The ZL and ZR buttons are one piece. Simply grab one side and lift it out of the shell.
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The L and R buttons are the next piece that can be removed. Simply grab them and lift them out of the shell.
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Lift up on the small, rectangular daughter board out of its grooves.
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The membrane can then be removed from the controller.
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The printed circuit board can then be removed from the controller shell by hand.
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The front shell of the controller will have the front side buttons and its membranes.
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Remove the turbo button's membrane by hand or tweezers.
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Remove the clear button's membrane similarly.
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Remove the Start/Select membrane by hand or tweezers.
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Remove the D-Pad membrane similarly.
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If the A-B-X-Y buttons are covered by a membrane, that may also be removed at this time.
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The last remaining pieces are the A, B, X and Y buttons, the Turbo button, the Clear button and the D-Pad.
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Remove each piece by hand or tweezers.
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Alternatively, place a flat palm over the front shell, then use your other hand to turn the shell over. The pieces will fall onto the flat palm for a quick button removal.
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