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Bios not updating via flashdrive

Level 7

Hi. I noticed my bios has never been updated; I have a System Model TUF-GAMING-B550M-PLUS-(WI-FI)-10DE

I followed the instructions:

1-Formatting the USB to FAT32

2. Running the renaming tool and copying the CAP file to the USB

3. Turning off the computer and pressing the BIOS button behind my chassis. 

4. Tunrning on the computer. 


Nothing. I get a regular Windows initializing, and the Bios show no version change. 

How can I fix this? 

Thank you 


Customer Service Agent

Hello, @zooropa 

May I ask if you have prepared a USB flash drive with a capacity of 1GB or more?
We recommend referring to [Motherboard] How to use USB BIOS FlashBack™? for further clarification of your operating steps.
Based on your description, after pressing the BIOS button, please wait until the light goes out, indicating that the BIOS updating process is complete.
Additionally, have you made any hardware changes? If you don't have specific requirements, such as hardware updates or requests for a particular BIOS version, we generally suggest sticking with a stable BIOS version.
Meanwhile, ASUS offers three methods for updating the motherboard's BIOS: updating through the BIOS menu (EZ Flash), the Windows system (EZ Update), or using USB BIOS FlashBack, and the TUF GAMING B550M-PLUS (WI-FI) supports these three updating methods.
If necessary, please refer to the [Motherboard] How to update BIOS of the motherboard ?(Include different generation CPU) and try other methods to update the BIOS.
Please be aware that updating the BIOS carries the risk of not booting up. It's advisable to back up your data before proceeding with the BIOS update.

Thank you.

Level 10

As you are getting access to Windows, you could try the normal way of BIOS update (the "flashback" method you described is used when normal way fails for some reason such as a sudden power outage).

The normal method is to get to BIOS (keep pressing /releasing F2 key or DEL key as PC starts), get to Advanced menu - Tools - scroll to Update BIOS - in the menu select the USB drive with the CAP file, and select the CAP file. Update will go from 1 to 100% and PC will restart.

Before you update your BIOS or motherboard or storage drive (and in general a good pre-emptive practice) -  make sure you know your Windows activation code. There are several methods to find the code of your Windows installation (I found four working methods online, one for command prompt, one for powershell, and two different VB scripts) - write it down for future reference in case you ever need it.