iFixit

Remove the two Phillips #00 screws securing the on/off switch to the front bezel.

When replacing, check the protrusion of the switch. There is a small plastic spacer adhered to the inside of button which may come off with cleaning. Without a spacer, the button may not protrude enough to be depressed. If lost, it can be replaced with a suitable thickness of stiff plastic (eg shirt box lid).

Carefully peel up the orange ribbon cable from the rear case.

The ribbon cable is easily damaged - be very gentle.

Remove the following 4 screws:

• Three 1.8 mm Phillips #00 screws securing the headphone jack and GPS antenna to the rear case. Note the order in which you remove the screws, as the left one has a slightly larger head.
• One 3.8 mm Phillips #00 screw in the plastic loop near the headphone jack.

Remove the four Phillips #00 screws securing the volume and mute switch.

The volume switch assembly sits on top of the mute switch. Make sure that the small soft pad on the mute switch is not lost, otherwise the mute switch will sit very loosely after reassembly.

The mute switch assembly screws should be tightened with the switch in the off position. Check the protrusion of the switch when turned on, since it may not stick out far enough to operate if the switch assembly is incorrectly positioned. (Check the gap between the switch frame and the bezel (white gap showing between the two screws near the 6). The screw on the far right is slightly longer than the other 3 screws. When reassembling the phone, keep this in mind.

Lift the volume button circuitry away from the side of the iPhone, and carefully peel up the orange ribbon cable from the rear case. The cable is thin and easily damaged.

Carefully lift the headphone jack assembly out of the iPhone.

Switch the green mute switch down (towards the back side of the iPhone) into mute position. This will make it much easier to insert it, once the new mute button is in place.

Remove the single 2.4mm Phillips #00 screw securing the black plastic spacer.

Some replacement rear panels may not have a threaded screw hole in this location.

Use a spudger to pry up the black plastic antenna housing from the rear panel.

Lift the black plastic GPS antenna housing out of the iPhone.