My phone does not display the "enable packet data" or APN options when I go to settings->more->mobile networks. I need to make sure the "enable packet data" is on because mms are not working right.
Neither does mine. I don't think you'll see these options on a Sprint phone. I don't know what is causing your MMS issue, but I'd suggest starting a new thread with that as a subject. Probably someone else can help you.