Good guide. I would say that you DEFINITELY need a #000 screwdriver (not #00, it doesn't really fit the screws at all). There are a number of small contacts around the edges of the motherboard cover that I'm assuming are case grounds; If you're having electrical problems after reassembly, that's definitely what I'd check first. Thank you also to the commenter(s) who pointed out the wireless charging fix by pressing just above the "S" on the back of the phone; I had that exact issue after reassembly, and it fixed it perfectly.