Xperia SL-Jelly bean ruined

[canair]

After updating to JB, WI-FI and GPRS not working :smileycry:.Reported this to Sony and they suggested to repair by connecting to PC Companion.Even after doing that the problem is not rectified..Any suggestions? 

[Alexander1]

Have you tried to delete the APN settings from the phone and download new ones from settings > Xperia > Internet settings?

Have you tried to connect to different Wi-Fi access points or just with your own router?