[ASK] Wifi can't Enabled Ubuntu 16.04

Haii… i’m newbie.
today, i was installed ubuntu desktop 16.04 on my notebook Dell Vostro 5480 but Wifi can’t Enabled.
i was update firmware but not solved.
Please help me…
Thanks before.

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the https://community.ubuntu.com/t/finding-help/712 page.