Without letting the ambient light sensor adhesive touch the screen, use a pair of tweezers to hold the sensor above the back of the new screen.

Align the ambient light sensor with its recess in the back of the screen.

Use a spudger or your finger to press the ambient light sensor into its recess.

Lay the ambient light sensor cable down on the back of the screen.

If the ambient light sensor cable isn't sticking, apply a few small pieces of double‑sided tape, like Tesa tape, to the back of the sensor cable.