Firmware Rollback F.57 to F.55 " Unable to open Signature file"

[Prayash7]

hey mike 

can you please please guide me to downgrade my bios because i am facing bios issue since feb and the bios version which is installed is causing heating issue. i also tried to follow your given instructions but i am getting some error while doing that. so please help me. i have done downlaod bios file, i have done making a bootable hiren pendrive but after that when i run cmd in hiren i face some errors

[Mike360g1]

If you could post the error you are getting and exact last thing you did before getting the error.  

[Prayash7]

Like i have successfully booted to hiren but when i open utility tool it gives me error of drivers not installed/found.

And can you pls provide me your ig id so that i can get reply more fast. 

Or you can dm me on my id if you are not comfortable providing your id here (@prayash_motsra)

[Iplayretro]

Just wanted to let you and everyone else know that this bios rollback fix is still working great with no problems whatsoever!  😊 Thanks again! 

[Prayash7]

Bro i am rookie in doing all these stuff so i don't know how to do the steps properly so that's why i am facing issue.

[Prayash7]

Mike?

[Mike360g1]

You need to open a Command Prompt as Administrator and use the commands that are in my solution. Have you managed to extract the BIOS files from the BIOS download from HP you should have a file which is number then ending in .bin

What model is your PC?

Also I've just noticed that for the model I was having the problem, HP have released a newer BIOS since. So maybe they have fixed the problem and the normal BIOS update procedure can be followed.

(I'm really busy at the moment so haven't had much time to check my message and reply)

[Prayash7]

@mike no problem bro.. you replied that's enough...

so there is no update for bios for my device till now and yeah i correctly extracted bios file and there were two files with extension of .bin and .sig.

i am confused in last part ( AFUWINx64.exe 08434.bin /P /B /N /REBOOT ).. where do i  use this code? cmd or utility tool

if utility tool then it's not working as i mentioned this thing early with some screen shots and if cmd please guide me how can i do because if i just copy paste this code i know it's not gonna work because how come computer will know the location of (AFUWINx64.exe) and bios file

my device name: Hp pavilion gaming 15 ec2008ax

[Mike360g1]

Put the .bin and .sig you got save from running the bios self extracting you got from HP into the same folder that you have AFUWINx64.exe in.

copy the below into your browser (assuming the forum doesn't remove)

1drv.ms/u/s!AspvWYOpjvNygYZCT4sAY4woBao4nw?e=nkDLHs

You should get a zip extract the flashBIOS.cmd from it and put that in the same folder. If you trust me!! run the flashBIOS.cmd as administrator. That should find the find the AFU util and bios file in that folder and flash the bios and put a bios image in the recovery location

[Prayash7]

@mike

Bro is my laptop cursed or what?🙂😭😭 I copied bios file and utility file in one folder and also copied that Flashbios.cmd file in that

But when i try to open it as administrator it open and then closes instantly... When i remove AFUWINx64.exe it shows AFUWINx64.exe missing. But when i again copy afu file to that folder it closes instantly.😭😭 Mike bro pls help me out my laptop is burning like lava after bios update.. i will even pay you maybe i will take some time to  pay because i am still a student 🙂 but i will surely pay you... Can't you arrange a video call so that i can show you what i am facing.