Hello, I have iphone 5 and recently it has been acting weird. When I go to cellular in the settings the settings app will crash, always. I can't access that part of the settings. Then my cellular signal has be constantly dropping I often get a status saying "Searching..." then I would get 4 dots for signal strength then it will drop to 1 dot, then full again but I do not get the 3G symbol. Eventually it will work, but this didn't use to happen for the past year and a half since I have been using this phone. Another issue is the wifi drops, wifi will constantly drop and I often switch on and off the wifi for it to connect again. I am running latest iOS release. I did restart the phone and did the "forget this network" trick. No use.