Nomad - October 18, 2012 at 7:24am
I have about the same problem:
I upgraded to 6 but after JB (redsnow 0.9.15b2) there is no signal and the preferences for 'carrier' are gone (I kind of end up with an iPod touch :o )...
In order to be able to make calls I restored my iPhone and of corse lost the JB.
anyone knows a fix for this?