Gaming Notebooks

Hello, I would like to know how I can downgrade the version of my bios, I have F.29 but I want to return to F.28, I already tried to do it by manually downloading the F.28 version directly from the HP page, but when I enter the bios using the f2 key to update it and go from version F.29 to F.28 I get a notice that says "The system BIOS updated failed. Unable to open BIOS Signature file." When I saw this error, I tried to do it through Rollback, I selected the BIOS image I wanted and the screen told me "Current BIOS Version: F.29 - Version of BIOS after Rollback: F.28" Then I clicked on Rollback now and I got a notice that said "The system BIOS rollback failed. Unable to open BIOS Signature file." Seeing that neither of these two options worked for me, I tried to force the downgrade by turning off the laptop and holding down the win + B keys but I got a message that said the following "The BIOS recovery files cannot be found or the files are corrupted. Using another computer and a USB flash drive, download the latest BIOS file from the HP websiote and create a BIOS USB recovery drive for the PC that needs recovery. Insert the BIOS USB recovery drive into the PC that needs recovery and restart the PC. " I hope you can please help me with this problem that I have been trying to solve for days, thank you.