I just got my droid DNA today. The Dna came with a SIM card in the slot already and I thought I was supposed to use that one. When I turned it on and proceeded to activate the sim card it was taking forever to activate the data, and it was't working. I took the sim card out of my droid razr and popped it into the dna and once I turned it on it instantly connected to my 4G and I went on to sign in and began using my phone. Right now it works and I'm getting Data. Am I supposed to use the sim card that came with the dna? The one from my razr seems to be working fine. If someone could clarify this for me I would much appreciate it.