I have the IP4, baseband 01.59.00, previously running 4.2.1, and jb'd via redsn0w last night, but I'm stuck with 1 bar and no phone service (I'm on ATT and don't require an unlock). Any help on what to do now would be appreciated, thanks!
Install this source, http://djayb6.com, from there install the ultrasnow fixer for 4.3.2. That should solve your one bar of service issue. Good luck.
Did you just update through Itunes and then rejailbreak? Is your baseband preserved or upgraded?
I followed Iclarified's guide... I downloaded the 4.3.2 ipsw file from a site linked on redmondpie, and then grabbed redsn0w, and followed the instructions.
Did u try to reset network setting n see if mms works