Introduction
This guide will provide you with a step by step instructions on how to replace the motherboard.
Tools
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            Using the thumbtab molded on the bottom of the phone, pry the back cover off using either a fingernail or a plastic opening tool. 
 
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            There is a molded notch in the white frame of the phone near the top right of the battery. Using either a finger or a plastic opening tool, utilize the notch to lift up on the battery, and remove it from the device. 
 
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            Using a T5 screwdriver bit, remove the (6) 5.0 mm screws along the outside edge of the frame. 
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            Using a metal spudger, wedge the 6 plastic tabs molded into the outer shell away from the frame to lift up and remove it. 
 
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            Use a spudger to simultaneously leverage the shell away and the motherboard up from the body of the shell. 
 
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To reassemble your device, follow these instructions in reverse order.