The Dell BIOS can be updated from a USB Flash Drive.
The USB 3.0 Flash Drive should be >8 GB and formatted using the GPT Partition Table with a single NTFS Partition.
On Linux, GParted can be used to format the USB Flash Drive. Press ⊞ to display the GNOME Dock and applications screen. Search for GParted. If it is not preinstalled. Open up software:
Select GParted:
Select Install:
Select Open:
GParted needs elevated permissions to partition USB Flash Drives and needs to be run as a super user. The following Authentication Prompt will display, which is the Linux counterpart to Windows User Account Control. Input your password and select Authenticate:
To the left select your USB Flash Drive:
Select Device → Create Partition Table:
Select GPT:
Right click unallocated space and select New:
Use the default sizes to create a single partition which spans across the drive. Set the Partition Name to USB and Label to USB. Select Add:
Select apply:
Select apply:
Select Close:
The USB Flash Drive is now has a GPT Partition Table with a single NTFS partition:
Go to Dell Drivers and Downloads. Select Browse All Products:
Select your System Model:
Under Operating System select BIOS:
Download the latest BIOS Update:
The BIOS Update will be saved in Downloads:
Right click the BIOS Update and select copy:
Copy the BIOS Update to the USB:
Insert the USB Flash Drive with the BIOS Update. Press F12 on a Dell to get to the BIOS Boot Menu:
To the top right, the BIOS Version will be listed:
Select Flash from File:
Select the USB Flash Drive:
Select the BIOS Update and select Submit:
Select Update BIOS:
The BIOS Update will now be applied and the computer will restart:
