Introduction
Having trouble with your headphones or USB ports? The Input/output board may be the source of your problem. Here is a quick an easy guide to replace your IO board, and get your devices working again!
Tools
Parts
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            Use your fingers to remove the connecting cable to the battery unit. Firmly grab the cord closest to the motherboard connection and pull straight back. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.