I am also having problems being able to send/recieve with my daughters RazR. My Razr Maxx just takes about a minute before it goes thru. But with my daughter's razr after the ICS update, we could not get the texting to work, Go SMS or the stock texting. I made sure the date was on, clear cache, reboot, etc.... finally went ahead and done a FDR, and I still having the same deal. Could it be that the update didn't install correctly? I didn't pay much attention to it as it was updating... I was on the road after it started...
Should I just try updating it thru the computer? or will that just make things worse?
So far the only thing with my MaxX was there was no sound for music/alarms, but it would ring...I was able to fix that on my own..couldn't tell you exactly how, but I did it. So so far no more problems with MaxX, it just the texting thing with my daughters RazR...