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After many attempts of pushing the buttons, and failing to get a response. It may be time to replace your malfunctioning volume and power buttons. This repair guide has qualities required for your particular repair needs for the Nokia 520.
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Insert the spudger into the crevice located between the back cover of the phone and the body of the phone.
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Lift the spudger gently to open the back cover of the phone.
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Insert the spudger into the space between the batter and the battery holder to remove the battery.
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Unscrew the 8 screws with a Torx screw driver (T4). After all screws are unscrewed place them next to the phone in the order
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Use your spudger to remove the plastic casing over the motherboard. Do it very slowly because it will be tough to remove and you do not want to break it.
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Carefully unclip the digitizer touch screen cable and the display screen cable using a spudger.
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Gently remove the motherboard with your hands.
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Flip it over and turn it 90 degrees to the left so the buttons are in front of you.
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Gently take the power/volume switches off using a pair of needle nose pliers. Gently clean the solder that was there. Replace the solder with a new coat of solder.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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UMass Dartmouth, Team 1-5, Bhusal Fall 2015 crwdns2935289:0UMass Dartmouth, Team 1-5, Bhusal Fall 2015crwdne2935289:0
UMASSD-BHUSAL-F15S1G5
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