Introduction
The front case of your GoPro is constantly being subjected to potentially dangerous obstacles: trees, bears, viking ships, and who knows what else. Should you happen to crack or break the front case, you can replace it with a brand new one.
Tools
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Place your thumb on the indentation in the back case on the side of the GoPro.
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Gently press down with your thumb and lift the back cover away from the case to remove it.
 
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Slide a plastic opening tool between the battery and the rear case.
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Gently pry the battery up and out of the rear case.
 
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Remove the four Phillips #00 screws securing the rear case to the rest of the device:
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Two 5.5 mm coarse thread screws.
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Two 4.4 mm fine thread screws.
 
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Slide the edge of a plastic opening tool underneath the sticker on the rear cover and gently peel the sticker up.
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Once you have enough of the sticker peeled up with the plastic opening tool, grab an edge of it with your fingers and pull it off completely.
 
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Using a plastic opening tool or your fingernail, flip up the locking tab on the SD board ribbon cable ZIF connector on the motherboard assembly.
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Use a pair of tweezers to remove the SD board ribbon cable from its connector on the motherboard.
 
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Remove the three screws securing the motherboard assembly to the front case:
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Two 10.8 mm Phillips #00 screws.
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One 4.8 mm Phillips #00 screw.
 
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To reassemble your device, follow these instructions in reverse order.