Bios Issue hp-g62-b82ep

[sonium]

Hello, i have an hp g62-b82ep, that i flashed a modded bios (this one). 
This bios is known to semibrick, i wasnt aware of it, so i flashed it. 
It's ok, recover would fix it.. But i can't do it. I must be doing something wrong. 
When i remove the CMOS battery this happen.
Ive tried to create HP_TOOLS partition on an usb, on the hard drive it self. 
It's a signed bios so im using phoenix to decrypt it and im placing the bios in x:\HEWLETT-PACKARD\BIOS\Current as its supposed. 
Tried 2 versions of the bios. F.35 Rev. A and F.48(same version as the modded one). 
I've used the hp tool to create the usb/hdd, the label is named HP_TOOLS but i can't get it to boot the recovery tool. 
I'm using Win + B combination, also tried the 4 arrows. 
Nothing. What am i doing wrong? If it were an hardware issue, i shouldn't get the CMOS Checksum Error when i remove the battery, right?
If someone could help i would be thankful, and if i get it to work i will pay for the time wasted with me! Thanks

[sonium]

Should i be using FAT16? Been trying with FAT32 only.

[sonium]

I've solved the issue.
Not sure what made the difference.
USB formatted in FAT16
bios and sign in Current, Previous, New and root folder.
Win + B til it shows the recovery menu(not just when clicking the power).
Thanks anyway bio-mods community.

[Sean_Shanks]

I've solved the issue.
Not sure what made the difference.
USB formatted in FAT16
bios and sign in Current, Previous, New and root folder.
Win + B til it shows the recovery menu(not just when clicking the power).
Thanks anyway bio-mods community.

What file name did you use for the .bin/sig file?