I bought the screen and tool kit set, followed these instructions to the letter, and successfully breathed new life into my son’s iPhone X. The only thing I would add to this is that you should use blue thread lock to keep these tiny screws from backing out. Even with it, I found some of the screws very loose when I removed them, which may be because the phone gets hot, but it doesn’t hurt. The trickiest part was replacing the waterproof display adhesive, but with the way the template backings were set up, it made it very easy to get it lined up and properly placed. The trick is to go slow. Thanks, iFixit! Another quality product!