[cvasale]

I just booted the all in one sim card. I'm confused as to when to take out the sim card. I'm on sprint, but my service isn't working and I cant make calls. I took out the sim card, and my phone froze. Just took out battery and I'm going to reboot haret. Could I get some advice as to when to remove the sim card? And is removing the sim card all that's needed for data/phone calls to work? thanks.