iFixit

Using a spudger, flip up the brown click wheel ribbon cable retaining clip.

The clip is hinged at the end nearest the edge of the case.

Use the tip of a spudger to slide the click wheel ribbon cable out of its socket.

The logic board is still connected to the front case by the display ribbon cable, located on the headphone jack side of the logic board.

Lift the logic board assembly out of the front case from the click wheel connector side (the cable you just disconnected). Rotate the logic board assembly about the display ribbon cable and lay it next to the front case.

Use a spudger to flip up the display ribbon cable retaining clip.

The retaining clip is hinged about the end nearest the battery.

Slide the display ribbon cable out of its socket.

The logic board is now completely disconnected from the front case.

A layer of adhesive around the perimeter of the display holds it securely to the front case. The following steps require prying up on the display with a spudger to free it from the adhesive.

The display is inherently delicate due to its thin glass construction. In the next few steps it is essential to work slowly and gently while prying the display from the front case.

Insert a spudger in the gap between the front case and the display near the top right corner. Slowly and gently pry the display up at several points along the top edge of the display, working your way toward the left corner.

Continue prying up slowly and gently on the display, this time starting at the top right corner and working your way down the right side.

Repeat this procedure on the left side of the display, working down from the top left corner.

When the adhesive has yielded enough to create a gap large enough to fit your fingers between the display and the front case, lift the display and gently peel off the remaining adhesive to remove it from the front case.