Restore Default ATT Simcard?

[projecthenry]

Basically, I screwed myself over a couple of times.

I bought the iPhone thinking that it was unlockable... didn't know about the whole bootloader dilemma.

And a couple of days after I bought it, the speaker messed up! It's now has a screechy sound when I listen to stuff. It even screeches when it's almost at the minimum sound!

So what I really want to do is to just return the iPhone.

But this is how I screwed myself over again...

I accidentally ran AnySim on the Default att simcard that came with the iPhone. =(

Is there a way to restore this? I'm positive that I can't return the phone without the sim card.


Thanks

[projecthenry]

What I really need to is just restore my default ATT sim card because I accidentally ran anysim!