Aluminium (or aluminum; see different endings) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal.
Turns out that it can also be used to remedy a scratched phone screen. 1  Mix two parts baking soda, one part water. 2  Stir to form a thick paste. 3  Apply to a dry cloth and gently wipe the scratch in slow circles until it disappears.
If you've cracked the screen on your iPhone 4S and didn't opt for AppleCare+ or insurance through your carrier, you can DIY repair the screen yourself. While it isn't the easiest repair to perform, it's definitely doable with the right parts and tools. And we'll walk you through it every step of the way.