Introduction
If your Flydigi Vader 4 Pro needs new action buttons, also known as face buttons, this guide can be used to replace them. The action buttons are located on the upper right side of the console, labeled XYAB. The action buttons are the most frequently used during gameplay, so damage and need for replacement is common.
What you need
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Remove the four 10 mm screws on the rear case using a Phillips #0 screwdriver.
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Insert an opening pick into the seam between the rear and front case.
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Pry around the perimeter of the controller.
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Remove the rear case and set it to the side of the front case, with care not to strain the connected cable.
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Disconnect each of the two vibration motor connectors.
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Remove the vibration motors.
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Remove the seven 10 mm screws securing the mainboard using a Phillips #0 screwdriver.
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Remove the four 6 mm screws securing the action buttons bracket with a Phillips #00 screwdriver.
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To reassemble your device, follow these instructions in reverse order.
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Utah Tech University, Team 1-2, McMurrin Spring 2026 Member of Utah Tech University, Team 1-2, McMurrin Spring 2026
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