why is my cellural data is slowing
I have iPhone 4 (IOS 7.1.2) . in the last couple of weeks , my phone is working slowly like the cellular data is working slowly .
youtube is not working and sometimes its loading slowly .
I tried so many things what would be able to reduce the cellular data, in addition I resets the network settings
my last problem is I couldn't find any software update (ios 7.1.2 to ios 8 ) I tried ti have that but its not able to update the software to ios 8
iPhone 4, iOS 7.1.2