LG Vu CU920 Microphone Replacement

Remove the back cover by firmly pressing against the indent on the back panel. Slide the cover downward and off the phone.

Remove the battery by placing your fingernail or an opening tool at the bottom edge of the battery and lift it out.

Remove the two 3.5 mm screws above the battery port with a Phillips #00 screwdriver.

Pull out the antenna to reveal a third screw.

Remove the 3.5 mm screw with a Phillips #00 screwdriver.

Using a plastic opening tool, gently pop up the plastic tab.

Use the plastic opening tool to pry up the edges of the plastic casing. You will then be able to slide it around the edge to dislodge it.

Remove the plastic case to reveal the motherboard.

Use a spudger to disconnect the cables from the motherboard.

Gently lift the ZIF connector (black tab) holding the ribbon cable in place. When it is in the upright position, remove the cable from the back side.

Remove the jack attached to the red and blue wires by carefully pulling it upward from the motherboard.

Remove the round jack connected to the black cabel by carefully prying it up from beneath with a spudger or plastic opening tool.

Remove the remaining three ribbon cables by gently lifting them by the ends, opposite of the cables, with a plastic opening tool or spudger until they pop out.

Remove the motherboard by gently prying it up with a spudger from the charging port.

Once the board has been lifted, remove it by pulling it away from the connected edge.

Unsolder the microphone located at the top right corner of the motherboard near the silver jack.

Solder in a replacement microphone.