So you’ve decided to get a tempered glass screen protector for your iPhone. Good choice — tempered glass is significantly better than plastic for a host of reasons: more protection, smoother on your fingers, won’t scratch as easily, and no screen bubbles. Here’s your step-by-step guide on how to install your new tempered glass screen protector. Look, I too like to live dangerously, but this is the time to focus and do it right on the first try, Mr. Powers. Open the screen protector package and set everything up on a clean, uncluttered table. You should have an alcohol wipe and a microfiber cloth in addition to the glass protector. Make sure your iPhone is turned off.