Before updating bios

If you determine to flash BIOS, you are taking a personal risk of BIOS flash failure.

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Note: Occasionally you will need to install a previous version before updating to the latest version.To see if this situation applies, look in the Important Information section located on the Driver Details page for the latest version of the BIOS, (you will need to click View details to get to the Driver Details page, when you are on the driver page for your computer's BIOS).Your computer's BIOS - Basic Input/Output System - is a chip on the motherboard which contains enough information to allow it to start up before the main operating system begins to load.Here's everything you need to know about how to update a PC BIOS, whether traditional or the newer UEFI standard.When this situation does apply, look for the Other version option, located on the driver page for your computer's BIOS.

A corrupt BIOS is one of the possible causes of your PC unable to complete POST or some times even boot into the operating system.

Just repeat the process, and if the problem still persists, update the original BIOS file.

If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up.

The BIOS revisions listed below have been found to cause an error with Bit Locker where it will not enable/resume when TPM is in TPM 2.0 mode.

If you have recently updated your system BIOS to the version below please update again to the new version shown from the Dell Support Site to resolve the issue.

For this reason, it's worth checking whether you really need to update your BIOS.