I have a Nexus S 4G and I cannot get my WIFI to turn ON. When I go to settings and want to toggle from OFF to ON nothing moves and stays in OFF mode. When I touch WIFI a screen comes on and says "Turning Wifi on..." but it never turns on. Any suggestions at all would be appreciated. It has worked fine for about a year and then 4 days ago nothing. I did drop it but I have dropped it before and this has never happened. I also saved all my data and did a factory default reset and Wifi still does not work and lost all of my apps too.