Nintendo 3DS Motherboard Assembly Replacement

Grasp the microphone ribbon cable near the microphone with a pair of tweezers.

Pull the microphone straight up out of the upper case.

Use the flat end of a spudger or your fingernail to flip up the retaining flap on the speaker assembly ribbon cable ZIF socket.

Disconnect the speaker assembly ribbon cable with a pair of tweezers.

Use the flat end of a spudger or your fingernail to flip up the retaining flap on the camera ribbon cable ZIF socket.

Remove seven Phillips screws securing the motherboard to the upper case:

Four 2.5 mm gold screws

Two 3.5 mm black screws

One 2.5 mm silver screw

Lift the side of the motherboard that sits along the bottom edge of the 3DS.

Use the flat end of a spudger or your fingernail to flip up the retaining flap on the LCD ribbon cable ZIF socket.

Remove the motherboard assembly from the rest of the device.