Dell Latitude 3390 2-in-1 Touchscreen Replacement

Flip the laptop over so that the bottom side is facing up. Place it on a soft, static free surface to prevent damage.

Use a Phillips #0 screwdriver to carefully remove all seven 7 mm-long screws securing the back cover.

Insert an opening tool into the seam between the back cover and chassis.

Pry around the perimeter of the back cover until it fully releases.

Lift off the back cover slowly and set it aside.

Use a Phillips #0 screwdriver to remove the four 4 mm-long screws securing the battery.

Disconnect the battery from the motherboard by gently pulling the connector straight out of its socket.

Carefully lift out the old battery from its compartment, ensuring that no cables or connectors are pulled or damaged.

Remove the single Phillips screw securing the WLAN card.

Use the pointed end of a spudger to disconnect the two coaxial cables.

Pull the WLAN card directly out of its socket.

Flip up each of the two locking flaps that secure the two connectors in the upper-right corner of the board.

Disconnect the two connectors.

Use a Phillips #0 screwdriver to remove the four 5 mm screws.

Lift the base of the laptop, keeping one hand on the screen. The display assembly should disconnect from the motherboard.

Unplug this part of the cable first.

Flip up the locking flap and disconnect the connector.

Start peeling up the cable.

Disconnect the cable connected to the camera.

Then peel the rest of the LDC cable off the touchscreen.