Introduction
The control wheel is used to navigate through pictures, and can wear down over time, and will need replacement.
Tools
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            Use a Phillips head 000 screwdriver to remove the one 4.0mm screw on the side opposite of the USB port near the shutter button. 
 
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            Open the flap at the top of the camera. 
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            Use a Phillips head 000 screwdriver to remove the two 4.0mm screws inside. 
 
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            Use a Phillips head 000 screwdriver to remove the 4.0mm screw at the side opposite of the USB port. 
 
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            Use a Phillips head 000 screwdriver to remove the three 4.0mm screws on the bottom of the camera. 
 
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            Tilt up the LCD screen. 
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            Use a Phillips head 000 screwdriver to remove the two coarse 4.0mm screws near the bottom of the camera. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.