Introduction
This guide will show you how to replace a faulty USB input by taking apart the keyboard.
Tools
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            Remove the tablet portion of the device from the keyboard by pushing on the silver button located at the base of the tablet and lifting up on the tablet. 
 
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            Remove two 5mm Phillips #0 screws on the top corners. 
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            Remove four 2.5mm Phillips #0 screws on the top corners. 
 
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            Use the size 0 Phillips screwdriver and remove the nine screws from the back panel. The four you need to remove across the top are 3mm and the four across the bottom are 2.5mm. 
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            The screw in the top right, shown where the screwdriver is, is a 5mm screw. 
 
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            Flip the connectors back to release the wires 
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            Take the white tab and gently pull it to the right in order to release the connecting piece. 
 
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            Place soldering tool on each of the four connecting pieces in the corner until each becomes unattached. 
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            Remove old USB input and replace with the new one. 
 
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To reassemble your device, follow these instructions in reverse order.