Seems like you've done what one ought to. So....
It's pretty cheap to purchase a new WiFi card and should be relatively easy to replace. Search for YouTube videos like (https://www.youtube.com/watch?v=Jkj-IHh3IWc) on how to open up the case and you should be able to see the WiFi card in your laptop (it will look like the one you bought). Normally there's 1 or 2 screws and a couple of wires to disconnect and re-connect on the new one. Button it back up and you should be good to go. You'll have to either download drivers or the card my come with a driver disk that will get you going.
I've done this many times before and it's a very simple and inexpensive upgrade-the WiFi card you get will probably be better than the one that came with the computer.
After upgrading OS to Windows 10, Wi-Fi card not recognized. Help!
I'm experiencing some difficulties with my laptop/tablet and looking for a solution from members. I recently upgraded my Lenovo Yoga 3 Pro 1370 from Windows 8.1 to Windows 10. However after the upgrade my wireless Broadcom Wi-Fi card could not be found. I downloaded and installed the drivers for the card on Lenovo's website but still can't get the wireless card recognised in Device Manager to function. Is there a workaround or a patch that I'm missing??? I'm at my wits' end and I hope fellow members would help me resolve this problem. Please help! Thank you.
--Submitted by: Stephen A.