Chosen Solution
After an automatic update was installed (5.0.2), WiFi won’t turn on anymore. If I try to turn it on, it just says turning on but it won’t open. The WiFi Address, MAC Address and Bluetooth Address in Settings only shows “Unavailable”.
I got a smilliar problem like you,try to reinstall/downgrade the software and didnt work,i tried to bring it to sony service center but its gonna cost a month to repair it,what i did just bought a wifi pcb board and replaced it by myself,now its working again
Oh Its Difficult You Need To Downgrade Your Device So You Can Use Wifi Again. I Hope It Works
