wifi does not work - Iphone 4S
I have an Iphone 4S, which until ios 7 worked perfect. When updated to IOS8, facing the wifi stopped working. The icon was gray, not empowered, did nothing. I was upgrading to the latest ios, but the wifi did not work. I did the procedure of heating the back of the iPhone with a hairdryer, as seen on the internet, and the wifi again for a month. then never returned. I wonder if anyone else had this problem and what was the solution. Thank U
iPhone 4S, iOS 8.1.2, wifi