Hey people i have iPhone 5 A1429 I currently installed iOS 8 GM The problem is i can't find the option to disable 3G my phone originally has a problem. it can't work with 3g. in iOS 7 when i enable 3G i get *No service* in the bar and i can't make calls, etc, and i had to disable 3G to make it work again. Now i can't disable 3G .. any thing i can do? i don't have warranty and changed the sim used all the carriers in my country and my phone didn't work with 3G only works with 2G in my country we don't have LTE too .. which now i have an option to disable it any fix?