Introduction
In this guide, the process of partially breaking down the Canon Powershot S110 and replacing the option dial will be explained in detail.
Tools
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            Remove the six screws by using a small Phillips head screwdriver. 
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            Remove the two screws on the side of the camera on either side of the HDMI input panel. 
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            Remove the two screws on the opposite side of the camera. 
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            Remove the two screws on the bottom of the camera located on either side of the tripod mounting hole. 
 
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            Using an opening tool, carefully remove the outermost cover of the camera from its holders around the edges. 
 
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            Remove the two screws holding the top plastic bracket in place by using a Phillips head screwdriver. 
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            Remove the screw holding down the lens cover. 
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            Remove the screw located near the option dial next to the USB connections. 
 
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            Remove the underlying component that was attached to the now-removed screw by using a prying tool. 
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            Remove the dial on the opposite side of the part using a prying tool. 
 
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To reassemble your device, follow these instructions in reverse order.