Cannot turn on wifi on Galaxy SIII For the last month, I am unable to turn on my WiFi. It gets stuck on the message "turning on..." .

I did a factory reset but it didn't help. I have tried to reboot a number of times and also I have enabled/disabled flight mode, but nothing works out for me.
Might very well be a hardware problem as doing a factory reset also hasn't helped. It's best to get your phone checked by an authorized technician.