Hi everyone! i've got a sabertooth p67 (rev b2 ?) motherboard currently at bios version 2302 i have tried to update to the bios provided in the thread by SKyRo "Modded BIOSes for all ASUS Z68+P67 MBs"
But i get an "integrity check failed" error while trying to update the bios through ez flash.
I have also tried updating the bios with .rom files directly from asus (2302, 3302 and 3602) the highest version one i can update to is version 2302,

is someone able to modify the 2302 rom with the needed drivers ? for nvme aswell as nvme boot support ?
Thank you in advance!

Heres the the highest version bios rom i dont get an "integrity check failed" error while updating to attached

Edit by Fernando: Thread title shortened and customized

@feebs

Dont play with bios up and down, and dont flash mod bios files versions different from the actual one in the system.
If now the system is on 2302, disconnect the AC power, clear CMOS (Battery OFF/Jumper 2-3), wait 10m and re-connect everything.
Start the system, go to bios and load defaults, go to EZ in bios and select the official 3302 from a USB drive, update the bios, repeat the process if the next and final update to 3602 fails again.
Only then when the system has the 3602, u can flash the provided mod 3602.

Then u can follow Fernando guidance, on point#4 OS installation on the NVMe: [HowTo] Get full NVMe support for all Systems with an AMI UEFI BIOS

@meatwar System is now on 2302 tried resetting the cmos several Times, and then trying to flash to 3302 without success i keep getting the "integrity check failed" error in ez flash bios Tool, tried with the roms on several different usbs in different ports etc, i really dont get what im doing wrong ? Thinking its an issue because the motherboard is b2 stepping?