BIOS-Update to version F.29 screwed up my fans and I can't get back to F.26 again

[FinallyMadeAnAc]

A few days back I gave my Laptop (HP Victus 16 Gaming Laptop) a cleanup and repasted it. 

I then thought it was a good idea to also update the BIOS from F.26 to F.29.

After Updating my fans don't spin anymore so my Laptop gets hotter and hotter.

As soon as the CPU gets close to 100°C the fans ramp up and start spinning full throttle for a few minutes.

That sucks and is loud af. Sometimes I even need to pause what I am doing because you cant hear anything when the fans are that loud...

As soon as the CPU-Temps are down to ~50°C again the fans stop spinning again.

Looks like I am not the only person having this kinda problem. For example this guy has the same problem: https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/After-BIOS-upgrade-f-29-to-f-3...
In this Thread is a Link to a YouTube-Video with a solution but when I tryed to do what HP said in the video, the shown method does not work on HP Victus 16. I even tryed it with different USB-Sticks and with different formats (FAT, FAT32, exFat) but it only shows me this: https://s1.directupload.eu/images/250819/p6ujyz3q.jpg

@HP is there any solution to this? Dont' you guys test your programm(s) anymore before letting people download and install it? Especially if it'ts a BIOS...

[Hawks_Eye]

Hi @FinallyMadeAnAc 

Welcome to the HP Support Community! We're here to help you get back up and running.

I’m truly sorry to hear how disruptive this has been for you, especially with the fans suddenly staying silent until the laptop heats up and then roaring at full blast. That kind of stop-start cooling can be distracting and frustrating when you’re just trying to work or enjoy your system. 

Let’s go through a few steps that can help bring your system back into balance.

First, perform a BIOS recovery to ensure the update applied correctly:
 

Recovering the BIOS

If the recovery doesn’t resolve the behavior, you can use the system utility to check and, if needed, reinstall or roll back the BIOS:
Updating the BIOS (HP Consumer Notebooks)
Pay close attention to the section on using a USB recovery drive, which can sometimes allow you to return to a stable earlier version if your model supports it.

After addressing the BIOS, it’s worth resetting the embedded controller to refresh fan management:

Power off the laptop.

Disconnect the AC adapter.

Hold the Power button for about 15 seconds.

Reconnect power and start up normally.

Finally, check for any new updates using the HP software tool here, as it ensures drivers and firmware align correctly with your current BIOS:
HP Support Assistant

I know it can feel unsettling when your fans don’t behave the way you expect, and then suddenly surge with noise. Taking these steps should restore smoother cooling behavior so your system stays cool and quiet without the dramatic shifts.

Would you like me to also prepare a step-by-step guide for creating a USB BIOS recovery drive, so you can directly attempt to reinstall F.26 if your model allows it?

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[FinallyMadeAnAc]

Hey Hawks_Eye,

thank you for your response.

I already resetted the BIOS (a few times) and recovered it (one time).

I even made a USB-Stick (actually I made two because I wanted to rule out the USB stick as a potential source of error) with the file named sp155860.exe 

This is the file the HP-Support-Website gives me when I search for older BIOS-Versions with the serial-number of my Laptop.

I even installed the HP Support Assistant but there are no new Updates for my machine.
Oh btw I need to say that this programm looks more like a marketing-tool, trying to sell me HP-Stuff and antivirus-programms than having to do something with actual support.

Here is a screenshot from creating the USB-Recovery-Stick with F.26

and here is a screenshot when I booted from the USB-Drive and trying to open a efi-file (secureboot already deactivated and I can see the folders HP and Hewlett-Packard and all the efi-files).

Are there any more methods I could try?

[Hawks_Eye]

You are Welcome, @FinallyMadeAnAc.

Thanks for troubleshooting, I appreciate all your efforts and patience!!

Got it — thanks for sharing the screenshots. They’re very helpful.

Here’s what’s happening and why you’re hitting the “Selected boot device failed” error when trying to use the USB recovery stick with the F.26 BIOS file:

Why it’s failing

HP BIOS rollback restriction
On many Pavilion/Envy/OMEN systems, once you’ve flashed a newer BIOS (e.g. F.29), HP sets a rollback lock in the firmware. That’s why the tool says “This BIOS update is not compatible with this device” when you try F.26.

The USB stick is being made correctly
Your screenshot shows the HP BIOS Update Utility creating the recovery USB. The presence of the HP and Hewlett-Packard folders + .efi files means the stick is structured correctly.

Boot error message
When you select the USB to boot, UEFI firmware checks the .efi bootloaders. If the BIOS build on the stick doesn’t match the allowed rollback versions, the firmware just refuses to boot it — resulting in “Selected boot device failed”.

What you can try

Unfortunately, rolling back to F.26 is almost always blocked at firmware level on consumer HP laptops. But here are your remaining safe options:

Try intermediate BIOS versions

Sometimes you can’t jump directly back to F.26 from F.29, but you might be able to flash F.28 or F.27 if HP still offers them.

Use the same HP BIOS Update Utility to make a stick with those versions.

HP BIOS Recovery (Win + V or Win + B at boot)

Power off completely.

Hold Win + B (or sometimes Win + V), then press and hold the power button for ~3 seconds.

Release power but keep holding the keys until you see the BIOS recovery screen.

If the USB stick is present, it should search for .bin BIOS images and let you recover.

Check BIOS rollback setting

In BIOS Setup (F10 at boot), look for BIOS Management → Allow BIOS Rollback (sometimes under Advanced or Security tabs).

If disabled, enable it and retry with the USB stick.

If fans are the main issue

HP sometimes adjusts fan curves in newer BIOS builds. If rollback is blocked, you may only be able to manage fan behavior using tools like HP Command Center / Omen Gaming Hub (if available for your Pavilion) or third-party software (with caution).

If rollback is locked (and the “Update not compatible” message suggests it is), there’s no way to force-install F.26 with official tools. HP deliberately blocks downgrades past a certain version for “security + warranty” reasons. The only path then is:

Try intermediate BIOS builds (F.28, F.27).

Or wait for HP to release an update that fixes the fan curve.

Thanks,

Hawks_Eye