How to Update Bioses with ASUS Firmware Update/EZ Flash

Applicable Products: Notebook, All-in-One PC, Gaming Handheld, MiniPC

 

There are two methods to update Bioses:

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

Note:

  • It is not allowed to downgrade the Bioses version.
  • Please back up your personal file before upgrading Bioses 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 Bioses 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 Bioses with ASUS Firmware Update/EZ Flash:

http://www.youtube.com/watch?v=eR19bBJU-DA

 

Please follow the steps below to learn how to update the Bioses using ASUS Firmware Update/EZ Flash:

Step 1. Download the Bioses file from ASUS support site
  1. Go to the ASUS support site with your device's model name, here you can learn more about How to search and download Bioses. 
    Note: To download the corresponding Bioses file, please refer to How to check the model name.
  2. In the support page, please search for [Bioses for ASUS EZ Flash Utility] or [Bioses version] file which is located in the Bioses category①, and then click [Download]② 
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Step 2. Save Bioses file to portable storage device and start updating

Before starting to use ASUS Firmware Update/EZ Flash to update Bioses, please extract the downloaded Bioses 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 Bioses in the Bioses utility. Here you can learn more about How to convert the USB flash drive format to FAT32.

  1. After downloading the Bioses file, right-click the file① and then select [Extract All]②. 
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  2. Select a Destination③ and then click [Extract]④. 
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  3. After the extraction is completed, please go to the folder and connect the portable storage device to your ASUS device. Right-click the Bioses file⑤, then select [Show more options]⑥. 
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  4. Select [Send to]⑦, then select [Your portable device]⑧. 
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  5. The preparation is finished, please access the Bioses setup screen on the device. 
    When the device is not powered on, press and hold the [F2] key on the keyboard, then press the power button to turn on the device. Keep holding the [F2] key until the Bioses setup screen appears, then release the [F2] key. Learn more about How to enter the Bioses setup screen. 
    Note: Gaming handhelds need to press and hold the volume (-) key, then press the power button to turn on the device.
  6. Upon entering the Bioses setup screen, you will encounter three types of interfaces: UEFI interface, legacy interface, and MyASUS in UEFI. Please refer to the following steps based on the Bioses screen of your device:
How to update Bioses in the UEFI mode

In the UEFI interface, you can navigate and confirm using the Arrow Keys and Enter key on the keyboard, Touchpad, or Mouse.

Note: The Bioses update screen below may vary slightly depending on the model.

  1. After entering the Bioses Utility, go to the Advanced Mode by pressing Hotkey[F7] or use cursor to click①. 
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  2. After entering the Advanced Mode, select [Advanced] screen②. 
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  3. Select [ASUS Firmware Update] item③. 
    Note: Some models are displayed as the [ASUS EZ Flash 3 Utility] item. 
  4. Select the storage device where the Bioses file located④, then click the Bioses file⑤. 
    The Bioses file naming convention for ASUS devices follows the format of 'Model'AS.'Bioses Version', as illustrated by the example B9450FAAS.302, where the model is B9450FA and the Bioses version is 302. 
    Note: Ensure that the device maintains a battery level of 20% or higher and is connected to a power source before proceeding with the Bioses update. 
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  5. When prompted to confirm whether you wish to proceed with the update, please click on [Yes]⑥. 
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  6. Verify whether the Bioses file information for updating is correct, then click on [Yes]⑦. 
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  7. The device is currently performing a Bioses update. Please wait patiently for the Bioses update to complete. Once the update is finished, the device will automatically restart and boot into the Windows operating system. 
    Note: Ensure that the device is connected to power and do not force shutdown during the Bioses update to prevent any abnormal issues. 
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How to update Bioses in the Legacy mode

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

Note: The Bioses update screen below may vary slightly depending on the model.

  1. After entering the Bioses Utility, select [Advanced] screen①. 
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  2. Select [ASUS EZ Flash 3 Utility] item and press Enter②. 
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  3. Select the storage device where the Bioses file located③, then select the Bioses file④. 
    The Bioses file naming convention for ASUS devices follows the format of 'Model'AS.'Bioses Version', as illustrated by the example UX32LNAS.203, where the model is UX32LN and the Bioses version is 203. 
    Note: Ensure that the device maintains a battery level of 20% or higher and is connected to a power source before proceeding with the Bioses update. 
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  4. Select [Yes] and press Enter to confirm and update Bioses⑤. 
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  5. The device is currently performing a Bioses update. Please wait patiently for the Bioses update to complete. Once the update is finished, the device will automatically restart and boot into the Windows operating system. 
    Note: Ensure that the device is connected to power and do not force shutdown during the Bioses update to prevent any abnormal issues. 
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How to update Bioses in the MyASUS in UEFI mode

In the MyASUS in UEFI interface, you can navigate and confirm using the Arrow Keys and Enter key on the keyboard, Touchpad, or Mouse.

Note: The Bioses update screen below may vary slightly depending on the model.

  1. After entering the Bioses Utility, go to the Advanced Settings by pressing Hotkey[F7] or use cursor to click①. 
  2. After entering the Advanced Settings, select [Advanced] screen②, and then select [ASUS Firmware Update] item③. 
  3. Select the storage device where the Bioses file located④, then click the Bioses file⑤. 
    The Bioses file naming convention for ASUS devices follows the format of 'Model'AS.'Bioses Version', as illustrated by the example X1505ZAAS.310, where the model is X1505ZA and the Bioses version is 310. 
    Note: Ensure that the device maintains a battery level of 20% or higher and is connected to a power source before proceeding with the Bioses update. 
  4. When prompted to confirm whether you wish to proceed with the update, please click on [Confirm]⑥. 
  5. Verify whether the Bioses file information for updating is correct, then click on [Confirm]⑦. 
  6. The device is currently performing a Bioses update. Please wait patiently for the Bioses update to complete. Once the update is finished, the device will automatically restart and boot into the Windows operating system. 
    Note: Ensure that the device is connected to power and do not force shutdown during the Bioses update to prevent any abnormal issues.