[Notebook/AIO/MiniPC] How to update BIOS with EZ Flash

There are two methods to update BIOS:

Since some models are not able to update BIOS in Windows, this article will introduce how to update BIOS in BIOS Utility.

Note:

  • It is not allowed to downgrade the BIOS version.
  • Please back up your personal file before upgrading BIOS to prevent any unexpected issue.
  • The operation interface may be different because of the model version.
  • Please keep the power supply / AC adapter connected during the BIOS update process.
  • If you have any issue about the content below, please consult with ASUS Service Center.

 

To provide you more detailed instruction, you can also click ASUS YouTube video link below to know more about How to update BIOS with EZ Flash

https://www.youtube.com/watch?v=UUXrTExXDes

 

Table of Contents:

Before starting the BIOS update process, you need to download the BIOS file first. There are two methods to download it.

 

Method 1: Download the BIOS file from MyASUS

  1. Type and search [MyASUS] in the Windows search bar①, then click [Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.)
    If there is no result searched , that means your computer may not install it. Please refer to How to install MyASUS.
  2. In MyASUS, select [Customer Support]③.
  3. Select [Live Update]④, and then select [Latest]⑤, here you can learn more about MyASUS - Customer Support introduction.
    Note: If there is no Live Update tab in MyASUS that means your computer does not support this function, please go to Method 2: Download the BIOS file from ASUS support site. Here you can learn more about Why can I only see the partial features in the MyASUS app.
  4. Please search for [BIOS for ASUS EZ Flash Utility] or [BIOS version] file which is located in the BIOS category⑥. If you can see the file, please click [Download]⑦, then go to the Appendix: How to use EZ Flash to update BIOS.

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Method 2: Download the BIOS file from ASUS support site

  1. Go to the ASUS support site with your computer’s model name, here you can learn more about How to search and download BIOS.
    Note: To download the corresponding BIOS file, please refer to How to check the model name.
  2. In the support page, please search for [BIOS for ASUS EZ Flash Utility] or [BIOS version] file which is located in the BIOS category①. If you are able to see the file, please click [Download]②, then go to the appendix: How to use EZ Flash to update BIOS.

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Appendix: How to use EZ Flash to update BIOS

 

Save BIOS file to portable storage device

Before starting to use EZ Flash to update BIOS, please extract the downloaded BIOS file, and then copy the extracted file to a portable storage device (USB flash drive or external hard drive).

Note: The USB flash drive format must be FAT32 so that you are able to update BIOS in the BIOS utility. Here you can learn more about How to convert the USB flash drive format to FAT32.

  1. After downloading the BIOS file, right-click the file① and then select [Extract All]②.
  2. Select a Destination③ and then click [Extract]④.
  3. After the extraction is completed, please go to the folder and connect the portable storage device to your computer. Right-click the BIOS file⑤, then select [Show more options]⑥.
  4. Select [Send to]⑦, then select [Your portable device]⑧.
  5. The preparation is finished, please enters the BIOS Utility. Here you can learn more about How to enter the BIOS Utility.
  6. After entering the BIOS Utility, please go to the next appendix: How to use EZ Flash to update BIOS in UEFI mode.

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How to use EZ Flash to update BIOS in UEFI mode

In UEFI mode, you are able to select and choose the item via Arrow Keys and Enter of keyboard, Touchpad or Mouse.

  1. After entering the BIOS Utility, go to the Advanced Mode by pressing Hotkey[F7] or use cursor to click①.
    Note: If your BIOS Utility screen is not like below, please refer to appendix: How to use EZ Flash to update BIOS in Legacy mode.
    Note: If your computer uses MyASUS in UEFI BIOS, such as Intel 12th Gen Intel® Core™ processors(Alder lake), AMD's Ryzen 6000 processors(Rembrandt), or later, please refer to How to update BIOS with MyASUS in UEFI BIOS introduction.
  2. After entering the Advanced Mode, select [Advanced] screen②.
  3. Select [ASUS EZ Flash 3 Utility] item③.
  4. Select the storage device where the BIOS file located④, then click the BIOS file⑤.
    The naming rule of BIOS files is defined as “Model”AS.”BIOS version”. Such as “B9450FAAS.302”. For example below, the model is B9450FA, and the BIOS version is 302.
    Note: The system can only execute BIOS update when the AC adapter connected and Battery power capacity should be over 20%.
  5. Confirm the BIOS file, and click [Yes]⑥ to update BIOS.
  6. Confirm the BIOS information , then click [Yes]⑦.
  7. When BIOS update is processing, please be patient till the BIOS update process is completed, and then the computer will auto-reboot.
    Note: Please make sure that the AC adapter is connected during the BIOS updating process on your unit. Also, please do not force shut down during the update process to prevent any issue.
  8. After the computer gets into Windows, it means the BIOS has been successfully updated. Here you can learn more about How to check the BIOS version to check whether BIOS is updated successfully.

Back to Appendix

 

How to use EZ Flash to update BIOS in Legacy mode

In Legacy mode, you can only select and choose item via Arrow Keys and Enter of keyboard.

  1. After entering the BIOS Utility, select [Advanced] screen①.
  2. Select [ASUS EZ Flash 3 Utility] item and press Enter②.
  3. Select the storage device where the BIOS file located③, then select the BIOS file④.
    The naming rule of BIOS files define as “Model”AS.”BIOS version”. Such as“UX32LNAS.203”. For example below, the model is UX32LN, and the BIOS version is 203.
    Note: The system can only update BIOS when the AC adapter connected and Battery power capacity should be over 20%.
  4. Select [Yes] and press Enter to confirm and update BIOS⑤.
  5. When BIOS update is processing, please be patient till the BIOS update process is completed, and then the computer will auto-reboot.
    Note: Please make sure that the AC adapter is connected during the BIOS updating process on your unit. Also, please do not force shut down during the update process to prevent any issue.
  6. After the computer enters the Windows, it means the BIOS has been successfully updated. Here you can learn more about How to check the BIOS version to check whether BIOS is updated successfully.

Back to Appendix