Hi. I recently updated the bios on my HP-15 laptop to F38 (by insyde) - this laptop uses the Windows 10 home OS.
I did it because it is the new bios update that addresses the "spectre" issue. I figured if there were any issues with it I would be able somehow to rollback or simply flash an older bios back on to the computer.
Anyway, the bios seems to have slowed my computer a little and also has it running slightly hotter. So I tried following the instructions on the HP site to roll back/downgrade the bios but so far no luck.
First I tried to rollback - two different ways to do this.. one with some key presses (win key +B + power) and another by booting, pressing esc, then F2 for diagnostics and then firmware... and press rollback. Neither of these work.. it states that there is no file for last good bios.
So then i tried to create a recovery USB flash drive. This is done by downloading the bios you want (in my case F25) and double clicking it which will bring up a bios update utility with 3 options. The first would allow you to update the bios through windows but it is not available since the bios is not an update but an older bios. The second is the recovery usb option which involves installing bios to the flashdrive which renames it to HP Tools. So then you shut down computer, put flashdrive in USB port. Then press and hold win key +B and then at same time press power for 2-3 seconds and release power while keeping on win key and b. A bios related screen should then shortly appear. So I did that and nothing ever happens. It just doesn't work.
The third way involves putting the files somewhere on your computer and then you get them somehow but I didn't understand it and didn't want to mess with it.
I went to the hp forum to see if they could help. It was suggested that the bios could have a kind of lock on it to prevent it from being changed but basically they didn't know for sure. I noticed that many people had problems downgrading the bios in the past there doing a search. Seems like the instructions don't produce results "lock" or not.
Anyway, I was wondering if any knows of any kind of generic way to downgrade the bios or any other suggestions. Thanks.
Edited by teesy, 13 March 2018 - 05:34 AM.