...pictures, etc? Ok so I recently got an Xperia Play. I'm on my parents AT&T contract and I have a few problems. First let me start by saying that I am using the sim card from my previous phone which was an LG Phoenix which is also a smart phone (The people at AT&T told me to use my old sim card). With that phone and sim card I had no problem accessing the internet or getting 3G or anything else. Now with this phone it seems like I'm not even on their plan anymore. Calling and texting work fine, but I can't use internet without WI-FI, I can't send or receive picture messages, I'm not getting any kind of 3G or 4G (it's supposed to be a 4G phone), I can't buy things from the app store without using a credit card (which normally you could just add the purchase to your bill.) My parents haven't changed anything and their phones work fine (my dad has a Samsung Galaxy II, and my mom has the Nokia Lumia 900. Not sure if that's relevant) I'm still on the plan, it just seems like there is something wrong with the phone. Any help would be greatly appreciated.