Problem with Dell Vostro 3300 wireless

SOLVED. I reinstalled A12 bios with usb and everything is working again.

Hello,

I have problem with Dell Vostro 3300 wireless. I installed Windows 10 64bit and wifi worked correctly. After I installed Bios update then screen went black and computer fans started to spin faster. I held the bower button and after restart white box comes on the Dell logo. Now Windows working correctly but wifi dosent work. I reinstalled all wlan drivers but still same problem.