Hello, i updated my iphone 5 7.02 and i have a problem with the 4g switch.. My carrier is Cosmote Greece and i have enabled 4g. When i am in 3g and I use the switch, up to the screen 4g flashes and then back to 3g, The only way to turn the 4g on is to switch off and then on the fligth mode. In ios 6 the (LTE) switch was working perfect. Another person i met has exactly the same problem ! Thank you in advance ! Vasilis