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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 (non damaging nylon stick tool) 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 separate the back cover of the phone and the body of the phone.
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Insert the spudger into the space between the battery and the battery holder, then lift gently to remove the battery.
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Unscrew the eight screws in the body of the phone using the Torx screw driver (T4).
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Once the screws are removed keep them nearby for convenience when repairing the phone later.
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Slowly and carefully use your spudger to remove the plastic casing over the motherboard.
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Using your spudger, carefully unclip the digitizer touch screen cable. Next unclip the display screen cable.
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Gently remove the motherboard with your hands.
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Flip it over. Then turn it 90 degrees counterclockwise. Ensure the switches (pictured) are facing you.
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Gently take the power/volume switches off using a pair of needle nose pliers. Once removed, 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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