Lost wifi after bios upgrade on hp stream

[ccb131]

Hi all,

I have an HP Stream 14-cb161ms that I'm running linux on, it's been working great for 2 years until I decided to upgrade the bios from F.02 to F.20.  Now the wifi is completely missing.

I am pretty confident this is not a linux-specific issue or a driver issue or anything like that. When I type lspci linux doesn't list the wifi card at all. The lspci command lists everything that's on the pci bus even if there is no driver for it. It's as if the wifi is not physically present.

I am thinking that when updating the bios, I inadvertently disabled the wifi firmware somehow. I have looked through the bios menus and made sure secure boot is disabled (computer won't boot with it enabled), I tried enabling and disabling legacy mode, no difference.

I found a diagnostic utility on hp's site and booted with it, and it says "wireless module check - not installed".

It also says "UEFI networking does not appear to be supported or enabled on the system". I tried enabling UEFI network boot in the bios as it recommends, no difference. I'll attach screenshots of the diagnostic messages. Any help would be appreciated. For now I plugged in a spare usb wifi dongle I had lying around and linux immediately detects it and it works fine so I can still use this laptop on the internet, but it'd be great if I could get the internal wifi to work again.

[ccb131]

I forgot to mention I also tried installing other versions of the Bios, but only F.20 and F.19 would install. There are older versions on hp's site like F.13 and F.14 but they wouldn't install, when I tried to boot the laptop using the Windows + B method the screen remained blank, only the 20 and 19 versions would launch the installer.