05-22-2015, 11:48 AM
My Tecno F7 (Phantom A, first edition with Android 4.1) Bluetooth and WiFi suddenly won't turn on no matter what I do. Someone thinks it's a software issue as the phone has never being unscrewed before (the little-cover paper with T on it, is still on the screw). Please, help!!
Also, can the OS be upgraded to 4.2.2? If so, how do I go about it?