How to Update Dell BIOS (A Complete Guide)

BIOS or Basic Input Output System is the first software your PC loads when you turn it on. It is a set of codes that resides on a chip of motherboard.  Like any other software, it also updates for features enhancements. BIOS facilitates the communication between the OS and the hardware.

If you are having trouble while installing the hardware in your Dell Laptop and desktops, then you have to Update Dell BIOS. So how can you Update Dell Laptop BIOS, also known as BIOS flashing?

In this guide, we will explain how to update BIOS in the dell system. Let’s get started.

What is BIOS?

BIOS is the abbreviation of the Basic Input Output System. It is a set of codes that helps a computer find OS and other related things while booting. It also facilitates the interaction between the operating system and computer hardware.

How to Update Dell BIOS

If you are willing to update Dell BIOS, here are some feasible methods to consider.

Method 1: Via Windows OS

Before proceeding with the update, check the version of BIOS your system is currently using.

Check BIOS version:

Press Windows + R keys to open the Run window.

Type msinfo32 and hit Enter.

When the System Information windows get launched, make sure the System Summary option is selected.

In the right panel, you can find the BIOS version and date.

You can see a value against it, note down this value.

Update the BIOS in Dell Laptop

Go to Dell’s official website and in the text box, enter Service Tag or Express Service Code.

You can get service from the bottom part of the screen or press Windows + R key, and type cmd then hit Enter.

Now in the displayed black window, enter the command – “wmic BIOS get the serial number.” 

Hit Enter after entering the above command. Note down the Service Code and keep it safe.

In the box on the webpage, enter Service Code number and Enter.

Now check results, choose the BIOS option to download from search results.

If the BIOS is updated, download the file to install it and close down all the running programs. Next, select YES for every User Account Control message.

Finally, tap OK and turn the system off to let the update complete.

Follow every step carefully, and do not skip a single step. After the process is done, check whether the BIOS is updated.

You can also read: Convert MBR to GPT During Windows 10 Installation

Method 2: Use Bootable Flash Drive

If you want to update the BIOS without logging in to the system, then you should try out this method. To check the BIOS version, turn on the system, keep hitting F2 until the BIOS setup appears. You can see the version next to BIOS Revision.

Go to Dell’s official website and enter Service Tag or Express Service Code.

Or you can scroll down to click View Products and choose your laptop or desktop model.

If the newer version is available, click download file and connect the file you want to be bootable.

Tap Windows + E keys to open Windows Explorer.

Download Rufus to make USB drive bootable. Now open the downloaded file.

Under Device, choose your flash drive. Under File System, choose F32 and FreeDOS next to Create a bootable disk using.

Click start. Tap close after the process is finished. Copy the updated BIOS file to flash drive.

Note down the name of the file. Connect the flash drive to the system you want to update. Turn it on and keep hitting F12 until the boot menu appears.

Highlight your flash drive and Enter.

A cmd prompt window will appear. Type C: and hit Enter. Type dir to list down the files of the flash drive.

Type the exact BIOS file name > Press Enter.

Follow the on-screen instructions and don’t turn off the system at all. It is better to get it connected to the charger the whole time.

Should I update Dell BIOS?

You should only update BIOS in case there is an urgent need for the same. If you are facing an issue that can only be resolved by BIOS update, then go for it. Otherwise, don’t.

Do you need to update your BIOS?

Like any other software program, BIOS also gets updated now and then. But if you are going to update it manually, then make sure you follow each step carefully. If you are wondering what does an update do to your BIOS, then let’s find out.

What does a BIOS update do?

A BIOS update doesn’t make rigorous changes to it. But it merely enhances some outdated features to make it work properly.

How can I update BIOS without battery?

BIOS update is not allowed when your battery is 10% or below. So if you are wondering how to update BIOS without battery, then sorry to disappoint you. Dell does not support the BIOS update without the battery.

Fix dell BIOS update stuck

If the BIOS update is stuck or frozen before the completion, follow these steps to fix it.

  • Unplug all the external components and then press and hold the power button for 40 seconds.
  • Release the power button and plugin only necessary components.
  • The screen will show BIOS update with options like update or cancel. Wait for a few seconds.
  • The BIOS update will restart, and the system will be rebooted.

Fix dell BIOS update not installing 

In case the BIOS update is not installing, follow the steps given below to fix it.

  • Unplug the system and power cable.
  • Hold down ESC and CTRL-key. And plug in the power cable while holding down the keys.
  • Press the power button. When the fan starts working, release the ESC and CTRL keys.
  • It will boot to the BIOS page where you can choose RollBack BIOS.
  • Press arrow keys to select the above option and then press RETURN.
  • Finally, let the system reboot, and you are good to go.

Final Words

We personally followed the same guide and everything is working fine. Just follow these steps carefully and take system restore before applying these solutions.

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