Introduction
Removal of the motherboard is necessary to access the rear facing camera. This guide involves the removal of various screws and parts so make sure you are in a clean and organized environment to avoid the loss of any components.
Tools
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            To remove the SIM card, use an unfolded paperclip to press down on the metal plate on the left side of the phone until it pops up. 
 
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            Gently push the screen toward the top edge of the phone and tilt the screen to reveal the black flex cables. 
 
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            Release the two black ribbon flex cables by gently pulling up on the connection using the spudger. Then lift the screen to remove. 
 
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            Use the spudger to gently lift the rear-facing camera until it is detached from the back cover. 
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            Release the yellow ribbon cable by lifting up on the connection to the motherboard with the spudger. 
 
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            Use tweezers to gently remove the rear-facing camera by lifting it up off of the motherboard. 
 
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To reassemble your device, follow these instructions in reverse order.