Introduction
Replacing the USB port requires a little bit of work, however it is easier than soldering a new port onto the existing board. Once again as with most of the repairs on this device it is relatively straight forward, the only thing it requires is a couple tools, also, the only hazard to note is to not use metal tools if possible because it is a circuit board with electrical connections that could short out. For example, if a metal spudger were to make a connection between two components on the board it could render the board useless.
Tools
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Slide one of the plastic opening tools in the crack on the side of the device with the windows button.
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Slide the other plastic opening tool facing the opposite way in the crack next to the first one and pry the back cover off a little bit at a time or slide them around the edge as necessary.
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Finally, slide the two plastic opening tools all around the case until it is open.
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Unscrew the three black, 4mm screws with a phillips screwdriver size PH 0 (one of which is under the gold colored ribbon cable.)
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Unscrew the three gray, 3mm screws with the same screwdriver (phillips screwdriver size PH 0.)
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Unplug the connector the connects the battery to the mother board.
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Use the plastic opening tools to lift up the black cable shown in the picture.
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Slide one end of the speaker to the other side and the speaker will be out.
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Unscrew the shown screw in the picture.
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Remove the silver tape using the plastic tool as shown in the picture.
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Unscrew the three screws shown in the picture.
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3 mm screws.
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Slide the small piece shown in green square on both black pieces and lift them up using the plastic tool as shown in the picture.
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Finally, take the USB port out. You will have three pieces out: the port and the two black pieces as shown in the picture.
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To reassemble your device, follow these instructions in reverse order.