How to Force a BIOS Update on a Dell Laptop
This page describes how to Update the BIOS on a laptop with or without the AC adapter attached, if the battery is missing, or the battery has failed.
Summary: This page describes how to Update the BIOS on a laptop with or without the AC adapter attached, if the battery is missing, or the battery has failed.
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Force flash the BIOS
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How to Force a BIOS Update on a Dell Laptop
There are cases where you must update the system BIOS on a laptop when the AC Adapter cannot be determined or is not available. This process may also be needed if the computer battery has failed or is not installed in the computer. When you attempt to update the BIOS within Windows, the update program detects if the AC adapter and a charged battery are present or not and will not continue until it is plugged in. If you must flash a BIOS and the AC adapter is nonfunctional or unavailable, the battery is dead or removed, there is a way for force the flash.
CAUTION: If the battery charge is less than 10% or the battery removed, you may be able to force the BIOS to update from within a DOS environment. A failure during this process may result in your computer becoming unusable and users must proceed at their own risk. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit, or loss of revenue, which customers may incur by following any procedure or advice set out in this article.
Cause
NOTE: For information regarding the updating of your system BIOS, see the KB article Dell BIOS Updates.
Resolution
What You Should Do:
- Download the relevant, or latest BIOS update file from Dell’s drivers home page.
- Save it in an easily accessible location from a command prompt. (C: drive or root directory would be the easiest)
- Click Start. In the Run or Search box, type cmd, and then right-click «cmd.exe» in the search results, and select Run as administrator.
- If the User Access Control window appears, select Yes
- In the Command Prompt window, at the C:\Windows\system32> prompt, type in cd\ and press Enter this will return you to the root directory.
- At the C:\> prompt, type biosflashname.exe /forceit and press Enter.
NOTE: biosflashname is the actual name of the BIOS you downloaded, for example, A6540A09.exe and there is also a space between that and the /forceit switch)
Additional Information
Recommended Articles
Here are some recommended articles related to this topic that might be of interest to you.
- Flashing the BIOS from the F12 One-Time Boot Menu
- How to Flash the Bios on a Dell Desktop or Laptop with a USB Flash Drive or Thumb Drive
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Affected Product
Inspiron, Latitude, Vostro, XPS
HP Consumer Notebook PCs — Updating the BIOS (Basic Input Output System) (Windows)
Download and install updates to the computer Basic Input Output System (BIOS). This process is also known as ‘flashing the BIOS’. Updating the BIOS is recommended as standard maintenance of the computer. It can also help to improve computer performance, provide support for hardware components or Windows upgrades, or install specific BIOS updates.
Only install BIOS updates from HP. Installing the BIOS incorrectly can prevent the computer from starting or being recovered. If your computer is managed by an IT service, contact them for the correct update process.
For business computers such as ProBook, EliteBook, and ZBook models, your company IT department or local IT service might manage BIOS settings. Confirm that the updated BIOS version is compatible with your company’s deployment environment.
Updating the BIOS automatically using Device Manager in Windows
To automatically update the system firmware (BIOS) to version F.03 (or later) using Device Manager, follow the steps in this section.
[Motherboard] Troubleshooting — When «WARNING! BIOS Recovery mode has been detected» displayed(CrashFree BIOS)
[Motherboard] Troubleshooting — When «WARNING! BIOS Recovery mode has been detected» displayed(CrashFree BIOS) To provide you more detailed instruction, you can also click ASUS Youtube video link below to know more about [«WARNING! BIOS Recovery mode has been detected» message is displayed Processing method of abnormal boot] https://www.youtube.com/watch?v=xb6FbJwVg8Y (Ex: Prime X299 Edition 30 model) 
Note: It may be interrupted while updating the BIOS, or the BIOS may be lost or damaged when the power is removed, and when the system cannot boot normally and enter the BIOS screen. You can use the rescue function CrashFree BIOS 3 program in the motherboard to recover the BIOS. There are two ways to recover: The first method: use the motherboard support DVD to recover the BIOS The second method: use a USB flash drive to recover the BIOS The first method: use the motherboard support DVD to recover the BIOS： Note: The BIOS version on the motherboard support DVD may be older than the BIOS version on the official website. If you want to use the latest BIOS version, please download it from the ASUS Download Center and use the USB flash drive recovery method to update. 1. After booting, turn on the optical drive and insert the motherboard support DVD. (Ex: Prime X299 Edition 30 model) 
2. Restart the computer (press the keyboard: ctrl + alt + delete key at the same time), it will automatically enter the «EZ Flash 3» BIOS update interface. For example: Prime X299 Edition 30 models, the message WARNING! BIOS Recovery mode has been detected is displayed as follows, you can refer to the «X299E3.CAP» name in the error message as the update option (you can use the keyboard or mouse to click) 
3. When the progress bar finishes updating, a prompt indicating that the update is successful will be displayed. Click OK and the computer will restart. 
4. After the system restarts, you will be asked to press the button to enter the BIOS setup. 
5. It is recommended that you follow the steps below to restore the default BIOS settings to avoid system instability caused by incorrect BIOS settings. (Ex: Prime X299 Edition 30 model) -> In the BIOS screen, press the keyboard F5 
-> «Load Optimized Defaults» appears, click OK 
The second method: use a USB flash drive to recover the BIOS: 1. Prepare a computer that can enter Windows normally for accessing the BIOS file. 2. Prepare a USB flash drive with a single sector of FAT16 / 32 format. The recommended size is 1GB or more. 3. How to get (BIOS)? How to Find Model Name: https://www.asus.com/support/Article/565/ You can get the latest software, manuals, drivers and firmware at the ASUS Download Center. ASUS Download Center If you need more information about the ASUS Download Center, please refer to this link . 4. Download the latest BIOS file corresponding to your motherboard model from the ASUS Download Center and save it to a USB flash drive. Enter the model-> click on the driver and utility. (Ex: Prime X299 Edition 30 model) 
5. Click Drivers and Utilities -> BIOS and Firmware, select the required BIOS version and download (the latest version is recommended). 
6. After clicking the download button, save the BIOS to a USB flash drive and decompress it (Windows 10 has a built-in decompression ZIP function) 
7. «BIOSRenamer» double-click to execute, you can automatically rename the BIOS file(.CAP). 
8. Automatically rename the BIOS file(.CAP) is completed -> Press any key to end the naming window 
9. Update the new BIOS file (.CAP) to the root directory of the USB flash drive. 
10. Plug the USB flash drive into the USB port of the motherboard. 11. Please restart the computer, and then the motherboard will automatically check whether there is a BIOS file in the device and enter the EZ Flash 3 application screen automatically. For example: Prime X299 Edition 30 models, the message WARNING! BIOS Recovery mode has been detected is displayed as follows, you can refer to the «X299E3.CAP» name in the error message as the update option (you can use the keyboard or mouse to click) 
12. When the progress bar finishes updating, a prompt indicating that the update is successful will be displayed. Click OK and the computer will restart. 
13. After the system restarts, you will be asked to press the button to enter the BIOS setup. 
14. It is recommended that you follow the steps below to restore the default BIOS settings to avoid system instability caused by incorrect BIOS settings. (Ex: Prime X299 Edition 30 model) -> In the BIOS screen, press the F5 key 
-> «Load Optimized Defaults» appears, click OK 
Q&A： Q1: How to make a FAT16 / 32 format USB flash drive ? A1: Please refer to the following steps: 1. Format the USB flash drive. On the USB flash drive, right-click and select Format FAT16 / 32. *Formatting will delete all data in the USB flash drive. 
2. File system format, select FAT32, and then click Start. 
3. Formatting completes. 
If the error/problem still cannot be resolved, please contact your local ASUS service center.
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WARNING BIOS upgrade is processing. Don’t turn off your computer. Shout out to Asus for having the fakest, most virus-looking update screen I’ve ever seen, thanks for the heart attack — Shout out to Asus for having the fakest, most virus-looking update screen I’ve ever seen, thanks for the heart attack
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