LG CU400 Motherboard Replacement

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Once the motherboard is not locked in place it will still be attached to the back phone casing by two wires, red and black, twisted together.
Use tweezers to grab the black piece that these wires are attached to and simply pull it off the motherboard.
You may need to flip the phone over so that the screen is facing down. Feel free to move the keypad assembly to the closed position for this step.

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