Introduction
Tools
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            Remove the micro SD card located on the left and right sides of the device by pushing into the SD card slot and pulling the card out. 
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            Unscrew all six 7.5 mm screws on the backside of the case using a 1.5 mm hex screwdriver. 
 
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            Disconnect the battery connection cable by gently pulling it away with angled tweezers from the slot that connects the cable to the motherboard. 
 
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            Using a Phillips #00 screwdriver, remove the 10 5.5 mm screws securing the circuit board to the case. 
 
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            Remove the tape covering the ribbon cables. 
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            Using ESD-safe tweezers, gently pull the ribbon cables away from the circuit board. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.