I try to get my mobile data working, but i haven't had success until yet!
I tried it with Stock ROM 2.3.6 and all worked fine. Next I installed CM11 (http://forum.xda-developers.com/show....php?t=2579431) and all worked perfect except mobile data. I tried to reinsert the APN settings, flash a new MODEM, install another ROM (http://forum.xda-developers.com/show....php?t=2587302) and restarted the phone a couple of times. It seems like mobile data is working with stock ROM, but not with any custom ROM!
My network provider is BOB (A1) - Austria.
My actual MODEM: XXKPM http://forum.xda-developers.com/atta...7&d=1343326851
Hope anyone can help me with this problem!