Comment 7 for bug 1432659

That was interesting. I eventually worked out how to get the BIOS updated (which requires a Windows 8.1 machine to unpack the BIOS, and combining it onto an HP_TOOLS UEFI diagnostics stick since any HP_TOOLS partition I had went with the Ubuntu install).

f.26 would not boot at all. Get to grub, choose recovery mode, and it gets as far as the second line about a RAM disk when it hangs and requires powering off. HP diagnostics seem to think everything was OK. I didn't try booting FreeDOS or a Win8.1 stick (I'm low on USB sticks).

Downgrading to f.24 got the system booting again. So I'm now slightly more up to date.

If people are running similar laptops with f.26 I'd be interested in hearing about it - perhaps somehow the flash went bad.

I'll twiddle the incomplete flag on this bug after I've run with the f.24 bios for a bit.