![Guide: Update Your Maximus VI Or ASUS Z87 Motherboard With USB BIOS Flashback For Devil's Canyon 4790K, 4690K CPUs | ROG - Republic of Gamers Global Guide: Update Your Maximus VI Or ASUS Z87 Motherboard With USB BIOS Flashback For Devil's Canyon 4790K, 4690K CPUs | ROG - Republic of Gamers Global](http://rog.asus.com/wp-content/uploads/2014/07/BIOS2004.jpg)
Guide: Update Your Maximus VI Or ASUS Z87 Motherboard With USB BIOS Flashback For Devil's Canyon 4790K, 4690K CPUs | ROG - Republic of Gamers Global
![uefi - If USB is not listed in BIOS as a boot option, does that mean the machine can't boot from USB? - Super User uefi - If USB is not listed in BIOS as a boot option, does that mean the machine can't boot from USB? - Super User](https://i.stack.imgur.com/kepiA.jpg)
uefi - If USB is not listed in BIOS as a boot option, does that mean the machine can't boot from USB? - Super User
![Asus bios update won't recognize the file in my usb flash drive. I heard the majority of flash drives are under fs0 but I don't see an Asus bios folder there or Asus bios update won't recognize the file in my usb flash drive. I heard the majority of flash drives are under fs0 but I don't see an Asus bios folder there or](https://preview.redd.it/hqvouyiw50581.jpg?width=640&crop=smart&auto=webp&s=823f0e175d2ad3f615172088766ab057ff9caf5f)
Asus bios update won't recognize the file in my usb flash drive. I heard the majority of flash drives are under fs0 but I don't see an Asus bios folder there or
![Notebook/Desktop/AIO] How to boot the system from USB flash drive/CD-ROM | Official Support | ASUS Global Notebook/Desktop/AIO] How to boot the system from USB flash drive/CD-ROM | Official Support | ASUS Global](https://kmpic.asus.com/images/2020/12/16/78ef3a83-ba19-4e5d-b48c-1c9649dab97a.png)