Originally Posted by Ends

My phone was bare bone stock when I got it. It isn't now but my straight talk Sim has worked from day one. You won't be able to delete the factory set apn but you can always add and delete others. Just add a new apn and your set. "att.mvno"

Does MMS work also fine ?

Originally Posted by mahanddeem

ofcourse I am talking about att compatible SIM...that's a no brainer

Then this thread is a no brainer itself. That's the reason why it's called att compatible sim.

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posted using a calculator running on android.

Originally Posted by mahanddeem

Does MMS work also fine ?

Sorry. Havnt followed the tread. But yes, MMS will work as soon as the APN is set. You MUST have data working before MMS will work. You'll be good to go.

Actually if the art phone has locked att pan then u can not receive or send mms. Iam trying to find out how to delete locked att pan.



Sent from my HTC One XL using XDA

Ive never seen a phone where you couldn't add or change the apn. Not saying they dont exist. I just dont know about it. All andriod OS's, iOS, and symbian(nokia) OS's all allow apn altercation. Blackberry I'm sure does as well, but I can't say with absolute certainty so I wont testify either way.

To answer the OP correctly, yes it will work on stock unrooted locked S2 (as long as you have the ST SIM for ATT phones). You need to install ST APN for data but that's easy. It's done either manually or if they have an app, the app will do it automatically for you. I've got a Red Pocket Mobile sim in the phone right now, works great. Also have one in the kids Ipuck 3gs (no jailbreak) and it works great. Any sim as long as it's made for ATT phones will work on locked ATT phones. The only thing that's different is your data speed will not be LTE if you use LTE phone. Data speeds are almost always slower for the MVNO's.