Can jailbreaking affect MMS?

[Advil]

I've been jailbreaking since the first iPhone and never had a problem, but I suddenly can't recieve or send MMS. I'm running 3.1.2 and never had a problem until last week. I haven't changed any carrier settings and I've tried resetting my network settings but no luck.

Went to ATT and they had no answer for me. Any ideas on why this could happen, besides the fact that ATT blows.

 

[Mikey B]

As long as you haven't altered the carrier file, jailbreaking shouldn't affect MMS. I wish I had a solution for you other than restoring. That's always my last-ditch effort. Do you get the little red exclamation point when trying to send one? One thing you can try is giving AT&T tech support a call and see if they can re-sync your device to the network. When 3.0 was still in beta, the last few releases always prompted me to have to call them and get my device "recognized" by their under-achieving network.

 

[Applejuiced]

I had the same issue. Call up AT&T and talk to customer service, if they can't fix it tell them to transfer you to tech support.