How to update BIOS with EZ Flash

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

 

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

 

Please follow the steps below to learn how to update the BIOS using EZ Flash:

Step 1. Download the BIOS 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 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, and then click [Download]②  

 

Step 2. Save BIOS file to portable storage device and start updating

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 ASUS device. 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 access the BIOS 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 BIOS setup screen appears, then release the [F2] key. Learn more about How to enter the BIOS 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 BIOS 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 BIOS screen of your device:
How to use EZ Flash to update BIOS 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 BIOS update screen below may vary slightly depending on the model.

  1. After entering the BIOS Utility, go to the Advanced Mode by pressing Hotkey[F7] or use cursor to click①.  
  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 BIOS file naming convention for ASUS devices follows the format of 'Model'AS.'BIOS Version', as illustrated by the example B9450FAAS.302, where the model is B9450FA and the BIOS 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 BIOS update.  
  5. When prompted to confirm whether you wish to proceed with the update, please click on [Yes]⑥.  
  6. Verify whether the BIOS file information for updating is correct, then click on [Yes]⑦.  
  7. The device is currently performing a BIOS update. Please wait patiently for the BIOS 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 BIOS update to prevent any abnormal issues.  

 

How to use EZ Flash to update BIOS in the Legacy mode

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

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

  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 BIOS file naming convention for ASUS devices follows the format of 'Model'AS.'BIOS Version', as illustrated by the example UX32LNAS.203, where the model is UX32LN and the BIOS 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 BIOS update.  
  4. Select [Yes] and press Enter to confirm and update BIOS⑤.  
  5. The device is currently performing a BIOS update. Please wait patiently for the BIOS 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 BIOS update to prevent any abnormal issues.  

 

How to update BIOS 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 BIOS update screen below may vary slightly depending on the model.

  1. After entering the BIOS 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 BIOS file located④, then click the BIOS file⑤.  
    The BIOS file naming convention for ASUS devices follows the format of 'Model'AS.'BIOS Version', as illustrated by the example X1505ZAAS.310, where the model is X1505ZA and the BIOS 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 BIOS update.  
  4. When prompted to confirm whether you wish to proceed with the update, please click on [Confirm]⑥.  
  5. Verify whether the BIOS file information for updating is correct, then click on [Confirm]⑦.  
  6. The device is currently performing a BIOS update. Please wait patiently for the BIOS 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 BIOS update to prevent any abnormal issues.