IT Professionals use command-line switches when updating the Dell BIOS on the latest models of Latitude, OptiPlex, and Precision Workstation computers. For more information about these options and the appropriate syntax to use them, see below.
Below is an example output from the Latitude E6520 BIOS executable "E6520A05.exe." General usage:
Typical Syntax: Filename.exe [/<option1>[=<value1>]] [/<option2>[=<value2>]] Option - Description: (none) - Display of the user interface for the guided update
/? or /h - Displays this Dell System BIOS Update usage information./s - Suppresses all user interfaces of the BIOS System BIOS Update./l= - Define a specific path for the Dell System BIOS Update log file./f - Override a soft dependency error returned from the Dell System BIOS Update.
/s option
/r - Reboot the computer to complete the update.
/s option
/p= - Provide the BIOS password (if needed) to perform the BIOS update. Examples:
Filename.exe /s Filename.exe /l="C:\my path with spaces\log.txt" Filename.exe /s /f If the ability to remotely update the Dell BIOS across a network is wanted, the Dell Client Configuration Toolkit (CCTK) is recommended. CCTK is available for download from the Dell Support website for the computers in use.
/? or the /h switch from the command prompt in Windows.
If the recovery key is unknown, this can result in data loss or unnecessary operating system reinstall.
For more information, see Dell Knowledge Base article Updating the BIOS on Dell Systems With BitLocker Enabled.
Here are some articles related to this topic that you might find helpful.