Users Guide

Rolling back to previous firmware versions

You can roll back to earlier versions of a firmware using the Firmware Rollback wizard.

NOTE: If you update any firmware only once, the rollback feature provides the option to revert to

the factory-installed component firmware image. If you update the firmware more than once, the

factory‑installed images are overwritten and you cannot revert to them.

To roll back a firmware:

1. Start Lifecycle Controller. For more information, see Starting Lifecycle Controller.

2. In the left pane, click Firmware Update.

3. In the right pane, click Launch Firmware Rollback.

The Firmware Rollback page displays a list of components for which roll back is available and the

later versions are selected by default.

4. Select the required rollback image and click Apply.

After the update process is complete, the system may restart. When applying more than one update,

the system may restart between updates and launch back to Lifecycle Controller and continue

updating.

Related Links

Firmware rollback

Comparing firmware versions

Updating or rolling back devices that affect Trusted Platform Module settings

Comparing firmware versions

To compare the version of the update or rollback with the version currently installed on the system,

compare the versions in the Current and Available fields:

• Component — Displays the name of the components. Select the check box corresponding to the

component that you want to update.

• Current — Displays the component version currently installed on the system.

• Available — Displays the version of the available firmware.

Updating or rolling back devices that affect Trusted Platform Module settings

Enabling Trusted Platform Module (TPM) with pre-boot measurement enables the BitLocker protection

on the system. When BitLocker protection is enabled, updating or rolling back the components such as

RAID controller, NIC, and BIOS require that a recovery password is entered or a USB drive that contains a

recovery key is inserted during the next system restart. For information on how to set TPM settings, see

the BIOS User Guide available at dell.com/support/home.

When Lifecycle Controller detects that TPM security is set to On with Pre-boot Measurements, a

message indicates that certain updates require the recovery password or USB drive with the recovery key.

The message also indicates components that affect the BitLocker.

You can choose not to update or roll back those components by navigating to the Select Updates page,

and then clearing the options for the appropriate components.