Introduction
Before beginning, please know that you will be completely taking apart the device in order to get to the button from the inside.
Tools
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            Begin opening the device by unscrewing the 5 following 9mm x 7mm screws with a J1 screwdriver. 
 
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            Once the screws have been removed, with light force open the scanner by pulling it apart at the seam. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.