iPhone 4 Display Assembly Replacement
This worked like a charm, but I learned a few things that I would like to pass on. This takes more than an hour if you have large hands or your screwdriver isnt magnetic enough to pick up the very small screws. Also, there are numerous sizes of screws, so when you disassemble, lay them out in order they were taken apart. The guide ends and then you just need to look at it in reverse to reassemble, but take care in remembering how to replace some of the parts - ie the shields. Also, make sure you have all the required tools. Another thing to remember is that the you need to make sure you pull the cables all the way through when you put the new screen on, otherwise you will have to remove the motherboard again and start over. THanks iFixit!