Sent from my HTC One_M8 using xda app-developers app
So I got my M8 today. And I popped in the SIM from my old phone. Everything seems to be working fine. Sms,internet,everything. But when I first put in the SIM I got a text telling me this phone needed a new SIM to activate all the features. My question is, is there anything I'm missing out on by using my old SIM?