Users Guide

● Dell Diagnostics, operating system driver packs, CPLD, and operating system collector tool cannot be rolled back to earlier

versions.

● The earlier version is available only if the component firmware is updated at least once to a different version.

● Except for iDRAC firmware, the earlier version of the firmware is not displayed if the current version and the earlier version

are the same.

● Every time a firmware image is updated, the earlier version of the firmware image is backed up.

● Every time a rollback operation is performed, the previously installed firmware becomes the current version. However, for

iDRAC, the previously installed version becomes the current version and the current version is stored as the previous

version.

● The earlier version of the firmware is available only if any of the following tools are used to update the firmware: Lifecycle

Controller Firmware Update feature, Lifecycle Controller-Remote Services, or the Dell Update Package (DUP) from

operating system.

NOTE:

○ When SEKM mode is enabled on a controller, iDRAC Firmware rollback shall fail when tried from a SEKM to a non-

SEKM iDRAC version. iDRAC Firmware rollback shall pass when done within the SEKM versions.

○ PERC firmware rollback to a non-SEKM version shall fail when SEKM encryption mode is enabled on PERC

controller.

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.

NOTE: In Firmware Rollback page, the Component names may vary in iDRAC GUI and Lifecycle Controller GUI.

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.

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 https://www.dell.com/support.

Firmware update