Remove the back cover first. The tool you needed is tweezers only. Insert into a corner and pry the metal cover up. It’s very easy to remove it. Heat up the glass for a while. Pry up the glass from the edges. Mind the flashlight and rear camera. Be patience and careful. There are some adhesive underneath. That’s the glass what you need. Remove & keep the flashlight cover. Witrigs entrusted a Chinese factory to make this new glass. You can see the quality here. A few scratches?! The black thing is blackwash painting on the glass. . A sharp tool may scratch the blackwash Plz careful when installing. Now,bend the glass. Easy to be broken. Try another side. You can see that I put some afford on it. The quality is better than the original one. Put the adhesive to the side of words. Remove the protective film. Put back the flashlight cover first. Then install the rear camera glass in a correct side. The hole on the glass must attach to the flashlight cover. Put back metal cover. Wanna know the quality of the new glass? The first tool is tweezers. Put some afford to scratch it. Then the screwdriver. No scratches. And knife. Still nothing. How about the scissors? Clean out the glass. Let’s take a closer look. No scratches. But I didn’t clean it out perfectly. Put back back cover. Take a photo. Perfect.