Introduction
Follow this guide to replace the 3.5mm headphone jack and game card reader board in a Nintendo Switch gaming console.
Tools
Parts
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            Use a clean fingernail to flip open the lock on the game card reader ZIF connector by prying it straight up. 
 
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            Use the tip of a spudger to gently slide the game card reader ribbon cable out of its socket. 
 
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            Use a Phillips driver to remove the single 3.1 mm screw from the headphone jack and game card board. 
 
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            Use the tip of a spudger to disconnect the headphone jack by prying its connector straight up. 
 
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            Gently lift the game card reader board, starting with the headphone jack. 
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            Slide the game card reader board away from the copper heat pipe, and remove it. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.