thanks works on my GA-Z270M-HD3
It works on my Kabylake motherboard also, specifically a Gigabyte GA-Z270X-Gaming 5. As long as Gigabyte doesn’t alter efiflash on newer motherboards in the future, then this modded efiflash should work.
If "efiflash NAMEOFBIOS.FX" gives error, use /X parameter.
"efiflash NAMEOFBIOS.FX /X"
Thank you @Fernando. I’m following the steps in the 5th post but I can’t download the effiflash mod by lordkag, it says: “Dieser Link war nur eine begrenzte Zeit gültig” so I stopped at step 4th.
Can you activate the link? There is another mirror?
Thanks.
Thanks Fernando.
I’ve tried but the FreeDOS OS report me an error when I write the command “efiflash BIOSnvme_v2” or “efiflash BIOSnvme_v2.xf”… I tried a lot of combinations and always the same error… I attach some images.
The command “efiflash BIOSnvme_v2.xf /R” reports the same error.
Do you have any suggestion?
Thanks 
@Mrcarl0s8 :
I have moved our recent discussion about how to get a modded Gigabyte BIOS properly flashed into this better matching thread, because it has nothing to do with the thread about how to get full NVMe support.
You should better ask users, who have already successfully flashed a modded BIOS into the BIOS chip of a Gigabyte mainboard by using lordkag’s resp. rootuser123’s guide.
@rootuser123 :
Can you help?
@Fernando It looks like the efiflash he’s using doesn’t have support for the newer flash chips since lordkag’s one is from 2015. Maybe anyone who understands lordkag’s bypass method can try to mod newer efiflash. Maybe @SoniX , @plutomaniac or @CodeRush can help out.
I think I’m going to return the Samsung 960 EVO + the ASUS Hyper m.2 adapter… I have to save some money in order to upgrade my MOBO. It’s the best option I think.
Well, thank you for all!
How to mod efiflash 0.65? This version of efiflash is included in newer Gigabyte motherboards and I would like to know how to mod it. @SoniX @plutomaniac @CodeRush can help with this one?
Hi.
Would it be possible to mod the latest 0.65 efiflash, to let flash mod bios’s in Gigabyte mobos???
Thanks in advance.
I can try it for GA-Z370-HD3P but it cann’t help.
I flash new bios but it’s backup to old bios after restarting
Try to use this command
efiflash.exe nameofbios.FX /C /R
hey guys,
I have a bit of a problem here and I think this could solve it:
I recently purchased a Gigabyte x370 Gaming K7 and when I booted up and looked into the BIOS I saw that the model number was saying B350 gaming 3 which is a different mobo of course. I then tried to flash the correct current BIOS of the x370 K7 but I always got the Error: ID mismatch
Now I think this error could be avoided by using a modded efiflash.exe like shown above - however it should be a newly modded one with RYZEN support etc.
So my question is if someone could please mod the attached efiflash.exe so I can try it to fix my mobo
Efiflash.exe.zip (45.9 KB)
@nikezzz Before you force flash anything and potentially brick the board - Have you looked at the model of the motherboard printed on the PCB?
I’d make 100% sure it says Gigabyte x370 Gaming K7.
Yes, 100% sure it’s a Gigabyte x370 Gaming K7 rev 1.0
They somehow must have applied the wrong BIOS chips in manufacturing as even the B_BIOS is also B350 Gaming 3
Wow, that is so bizarre.
Yes I also could not believe it in the first place.
I’ve built at least over 30 PCs in my life and never seen something like this.
But I’ve read online that this happened in the past with some Z87 boards from Gigabyte before.
So I bought this K7 refurbished so maybe this could also be a possibility but I can’t see any manual soldering marks on the bios chips so I don’t think this was done with an SPI Flasher.
I have a 14 day return window but I would like to fix it this way so I don’t need to disassemble everything and ship it back.
Did you try flashing from DOS with Intel Flash Programming Tool (FPT)?
Or from DOS with AFU and use /X switch (= Don’t Check ROM ID)
SPI flasher can be used with cheap cable, no soldering marks. So if you have $2.50-3.00 for CH341A and another $2.50 for cable you’ll be set too if the above doesn’t help.
https://www.ebay.com/itm/263708580560