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A guide on how to replace the logic board in the LG VX5400.
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Turn off the cell phone and turn it over on its back side
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Hold the phone case in your palm and slide the back cover towards yourself using your thumb
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Slide a tool or finger into the notch at the top of the battery to carefully remove it.
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Take the Philips screwdriver and unscrew the four visible screws on the backside of the phone indicated by the four red circles.
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Then, take the pointed end of a spudger and pry out the rubber stopper to reveal the last screw at the top indicated with the blue circle.
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While the phone is open and faced up, carefully insert a tool into the middle to seperate the bottom half of the phone.
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Carefully slide out the keypad and remove the logic board. Then insert new the logic board.
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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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Cal Poly, Team 26-26, Regan Spring 2010 crwdns2935289:0Cal Poly, Team 26-26, Regan Spring 2010crwdne2935289:0
CPSU-REGAN-S10S26G26
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