Hi, after i did this update, when i try to dial a number through a sms message or a webpage, it asks the confimation with the right number but it changes when i dial it. Another problem is that my wifi is not working a 100%, it misses the signal every time, it appears that has just 2 bars in the wifi and it stops, after a while the bar is full and working, but it happens all the time in differents wifi areas. Thanks a lot.
Tap Settings App > General > Reset > Reset Network Settings. See if fixed. If still problem, Restore iPhone with iTunes 10.7 on computer. See if fixed. If still problem and there is Warranty or AppleCare make Genius reservation and take iPhone to Apple for resolution.