Restoring an Iphone ( Front and Back)

Step 4 Step 1: Drysand with first grit

(always when sanding keep a thumb/finger above the camera to avoid scratching the glass lens ! )

Dry sand with the least aggressive sandpaper needed to remove scratches. If you have deep scratches you may have to go down to 320-800, but if you have light scratches, 1000 or 1500 might be enough. The way you test this is first select a fine grit sandpaper, and see if it gets rid of most of the scratches. If you still see deep scratches, try the next most aggressive grit, etc. For me I had to go all the way down to 320 grit. This first step is really time intensive, but make sure you don't use water, on the first step because it tends to hide scratches. When you dry sand you can see all the fine sanding marks you are making which allows you to see the scratches you haven't removed. Dry sanding clogs sandpaper, but you can either buy more sandpaper or wash the sandpaper in water and dry it before you use it. Before you finish this first step, make sure all your sanding marks are in one direction; you'll see why later.