I am not a professional. This is my first phone disassembly. The video is more like a warning for the non-professional not to attempt a DIY repair :)
When you order your spare parts make sure the seller is clear about what he's selling. I got my replacement screen WITHOUT the light guide (for the back/home buttons). The description did not inform about that. Now I don't mind the missing light guide (the intense light coming from the buttons is a bit annoying when using the phone in low light) but it should have been my choice, you know...
