How to open an iPhone?

We spent a lot of time trying different options, and this is currently the best technique we've come up with.

Well the teardown is rather vague on that but it gives a general idea on how to go about doing it, removing the antenna plate first, I've heard the most effective way to go is using some good quality nonmetal spudgers and making sure to apply pressure evenly, so as not to bend any part.

how to open the iphone to put your sim card in