Reprogram Shine from Rogers to AT&T

I purchased an unlocked TU720 Shine programmed for Rogers. I am using it on AT&T now. I can't send picture messages. I tried manually entering the AT&T MMS...but since the phone is programmed for Rogers, I can't get the MyMedia to show under Network Profile...only options are GoRogers, RogersInternet, RogersMedia.

What do I need to do to get this phone working on AT&T.

Help!

THANKS!

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did you ever get an answer to this question. I am having the same problem.

I was able to reprogram the phone with the MMS and Internet setting from At&T and I can now send picture messages.

I looked up the MMS programing on At&T's site. The internet programing an AT&T store rep put in for me...even though "we don't support it".

You can probably pull that off At&T's site or off another AT&T phone...if you know someone else with a working one.

Good luck