Okay, just registered brand noob. I've been thinking about getting the T-Mobile Blackberry 8320, but I work at RadioShack and get a discount with AT&T so logically I would like to use the 8320 on AT&Ts network.
I've read through this thread a bit and it seems like murphydawg80 knows what he's talking about, so I would like to ask you a few questions. Hopefully you would be so kind as to answer.
Originally Posted by
murphydawg80 That's the thing...you can call YOUR provider and get an unlock code for a phone branded by your provider. You cannot call t-mobile and get an unlock code if you are not a t-mobile customer, though. You will need to purchase a code from someone who can get them

I do not yet have service with either AT&T or T-Mobile but my girlfriend does with T-Mobile, so do you think if I called them and asked them for the unlock code for an 8320 they would give it to me and I could subsequently use it with an AT&T account that I plan to establish? Or vice-versa.
Another question is about another thread about no MMS with certain devices. So when I use an unlocked T-Mobile device on AT&T's network (or vice-versa) is there any other features that will not be allowed? If there is a thread about this, as I would imagine it is a common question I just couldn't find any, could you redirect me?
Thank you for any help.