iFixit

Remove the 1.5 mm Phillips screw near the dock connector ribbon cable.

Remove the three large-headed 1.5 mm Phillips screws along the SIM card side of the iPhone.

Keep track of the washers under each of the screws.

Tip: It can be tricky, but it is also possible to just loosen the large-headed 1.5 mm Phillips screws slightly, without having to remove and replace the screw-and-washer set.

Remove the small-headed 1.5 mm Phillips screw near the sleep button.

Carefully insert the edge of an iPod opening tool between the rubber bezel around the front glass panel and the steel inner frame.

Do not attempt to insert the tool between the glass and the rubber bezel.

Carefully pry the upper edge of the front panel assembly away from the steel inner frame.

Slowly and gently lift the top edge of the front panel assembly away from the steel inner frame.

Continue to rotate the front panel assembly away from the steel inner frame until it slowly begins to peel off the adhesive applied below the home button area.

• It may be easiest to insert a spudger at the top and work it around the edges, spreading gently as you go.

Carefully pull the lower edge of the front panel assembly away from the steel inner frame.

Be careful, if the home button sticks to the front panel you may tear the home button cable.

Do not flip the front glass completely away from the frame. Doing so may result In damage to the digitizer cable.

De-route the digitizer and LCD cables through the steel inner frame.

Before re-fastening the front panel to the steel inner frame, be sure both the LCD and digitizer cables are not folded or pinched between the inner frame and the front panel assembly. This will result in possibly damaging the cables and not having enough slack when reconnecting them to the logic board.

When the front panel has been correctly installed both the LCD and digitizer cables should be immediately next to one another and should be the same length and should be just hanging over the steel frame.

When replacing the front panel assembly you must remember that you might have to reuse the earpiece grille and the clear plastic ring around the front facing camera from the old/damaged assembly. This will depend on where you buy the replacement part.

After reassembly, protect your new display from any scratches by installing a new screen protector.

Use the edge of an iPod opening tool or your fingernail to lift the home button ribbon cable retainer.

Be sure you are prying up on the cable retainer, not the socket itself.

Use a pair of tweezers to pull the home button ribbon cable out of its socket.

Do not excessively strain the home button ribbon cable, as it is very thin and delicate.

De-route the home button ribbon cable through the inner case and remove the home button from the iPhone.

When installing a new part, there may be a protective plastic film on the home button. It can be removed with a spudger or your fingernail.