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How to use ASUS ROG USB BIOS Flashback

V2-V3
Level 8
How to use the ASUS Republic of Gamers USB BIOS flash back

The minimum hardware requirements for USB BIOS flash back is to have a Motherboard with ATX Power Supply on and plugged into the wall. You do not need to have a CPU, RAM, Graphics Card, or Hard Drive connected to the system.
The system does not need to be turned on or pass POST (Power On Self Test)

1. Acquire a USB Thumb Drive
2. Format the USB drive with a FAT32 file system
3. Download the latest BIOS for your motherboard and place the extracted ROM file on the USB drive
4. Be sure to rename your file according to the motherboard model. If you have an Rampage III extreme, rename the file to R3E. If you have a Maximus IV Extreme rename the file to M4E.
5. Place the USB drive into the ROG Connect USB Port
1860

5. Hold the Rog connect button down for 5 seconds and an amber light near the BIOS chips will flash for several seconds and when flashing has stopped the BIOS has been successfully updated..

Youtube Video:


HiTechLegion Deno Video:


The BIOS Flashback help page has also been updated for CAP upgrades:
http://event.asus.com/2012/mb/USB_BIOS_Flashback_GUIDE/

556,556 Views
114 REPLIES 114

It works.
I have the 0038 flashed.
Thx for your help.

Arne_Saknussemm
Level 40

AnonGhost
Level 11
Can i use bios flashback on my z370-e gaming motherboard?
MB: ASUS ROG STRIX Z370E - GAMING
CPU: INTEL CORE I5 - 8600K
CPU COOLER: Thermaltake Floe Riing RGB 240 TT Premium Edition
GPU: ASUS STRIX GEFORCE GTX 970 OC
RAM: 16GB - 2x8GB G.SKILL Trident Z RGB DDR4-3600MHz CL18-22-22-42 1.35V
16GB (2x8GB)
PSU: EVGA SuperNOVA 850 G2 850W 80+ GOLD

Arne_Saknussemm
Level 40
Hi AnonGhost...no, that board doesn't have this feature. If you want to upgrade bios use EZ flash 3 in the BIOS...see your manual for how....

MonarchX
Level 7
Does ASUS ever plan on FIXING this bugged feature? It does not work unless USB flash drive is formatted with Diskpart. If formatted NORMALLY, using Windows right-click Quick Format FAT32, the flash drive will not work. It's obviously a ridiculous and absurd bug that ASUS continues to neglect over and over and over again. When will this undeniably excessive incompetence and laziness to properly implement this feature come to an end?

MonarchX wrote:
Does ASUS ever plan on FIXING this bugged feature? It does not work unless USB flash drive is formatted with Diskpart. If formatted NORMALLY, using Windows right-click Quick Format FAT32, the flash drive will not work. It's obviously a ridiculous and absurd bug that ASUS continues to neglect over and over and over again. When will this undeniably excessive incompetence and laziness to properly implement this feature come to an end?


Hello

No problem here using USB BIOS Flashback when formatting the USB sticks with Windows FAT32 formatting utility.

MonarchX
Level 7
I tried 3 different ones from USB 2.0 to 3.0 from 3 different vendors with identical results on both Z77 and Z370 from ASUS. Plenty of other people have the same issue, which is why the DiskPart guide was posted to begin with. There IS a problem with how ASUS implemented it's Flashback feature.

Arne_Saknussemm
Level 40
I'm not sure why Diskpart works so well for many people...I have been advising this method for formatting the pendrive ever since it worked for me.

I think a lot of pendrives come "named" from the manufacturer. i.e. if your pendrive shows up in explorer with a fancy name instead of a drive letter anything you put on it is not on the root of the drive....something like that...

Diskpart seems to wipe off any nonsense and gives you root of the pendrive and it shows up with a simple letter name in OS.

So, I guess it's a pendrive maker thing more than an ASUS thing. BIOS flashback works fine on the root of a FAT32 formatted drive...

EDIT: for those interested... https://rog.asus.com/forum/showthread.php?78620-X79-DELUXE-Bricked-after-USB-BIOS-Flashback&p=549397...

OldMike65
Level 8
Question guys, I just want to make sure.
It looks like my Maximus X Apex motherboard CAN be flashed back to an older bios. (Z370) According to my manual
I named the file M10A.Cap
I have not tried this yet, I want to make sure I can flash back to an older bios 1st.
Thanks guys..
Mike...

Nate152
Moderator
Hello OldMike65

It looks like you named the bios file correctly, you can revert to any bios version using bios flashback or the EZ flash utility in the bios.