Originally Posted by HyperM3
Glad to hear you got it figured out. MMS can be a tricky thing sometimes. The big problem is that AT&T doesnt have this phones IMEI provisioned for their system. So if you are going to AT&T for the first time with this phone you will have problems most likely. If you are coming from another AT&T phone, just popping the SIM in should be just fine without telling AT&T you switched phones, keep the old phone IMEI in their system.
Thank you. I'm waiting on my phone which will be my very first android - I currently use an iPhone via AT&T 4G. I am intending to switch to T-Mobile in a couple of months but need to use my AT&T service until then. I was wondering if I could just pop out my SIM and place it in the Nexus.