Before you begin Read this website's Legal Guidelines and make sure you understand the risks of this repair. Place your iPhone 3GS on a clean flat and soft surface, such as a rubber mat or a piece of soft cloth and get the required opening tools
		Follow the steps of the iPhone 3G screen replacement guide until you removed the front panel.
		Step 2   The remove the screw at the top right corner holding the proximity sensor cover in place.
		Step 3   Lift the proximity sensor cover using a pointed metal tool such as a dentist tool or a pointed screwdriver. Be careful when using pointed tools, keep from making rapid movements.
		Step 4   This is what it looks like when one side of the cover is removed.
		Step 5   Now remove the bottom side of the cover. It's a clip, so try to pull downward as you are pulling up.
		Step 6   When the cover is removed, the proximity sensore can be eased off the clips. This is what it looks like when the iphone sensor is separated from the front panel.