Introduction
Repair of the Mayfan 3rd party Jon-Con Switch controller shoulder button. These buttons seem to stop working after a couple of drops on the floor.
There seem to be multiple controllers out there with the same design per my Amazon search.
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Use a J0 Philips screwdriver to carefully remove the four screws. Screw head strips easily. Do not force it.
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Use a pry tool to open the controller once the screws are removed. The plastic cover for the shoulder button will most likely fall out. There are no springs on this button.
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The button will be bent back. This is especially visible from the front. You will see a gap between PCB and the button. Use some needle-nose pliers to bend the button back such that it is flush with the PCB.
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To reassemble your device insert the shoulder button cover, and follow these instructions in reverse order.
Note: With additional drops the button will bend again and eventually break. The way it is mounted is a bad mechanical design.
