Wi-Fi and Bluetooth Wont turn On(Grayed Out)

I was on Stock UK 30B Firmware flashed yesterday evening, everything was fine and after a couple of hours later WiFi and Bluetooth did not work.I tried factory resetting and flashing KDZ of Lollipop,jellybean and no avail,tried Dorimanx Kernel and now on resurrection remix,nothing working,i have seen many have faced this issue in various OEM,but did not find any particular solution.
Is this a hardware issue,are WiFi and Bluetooth chips differentiated from the board or inbuilt,so i can replace in minimal cost without going to SC.