User's Manual

NOTE: After a rollback, the current and previous version displayed are same.
The Dell Diagnostics, OS driver packs, CPLD, and Lifecycle Controller firmware 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.
Every time an image is updated, the earlier version of the firmware image is overwritten.
Every time a rollback operation is performed, the previously-installed firmware becomes the current version,
and the previous version will not be available. However, for iDRAC, 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. However, the previous version of PSU firmware is available if Lifecycle Controller Firmware Update
feature or Lifecycle Controller-Remote Services is used to update the firmware.
Related Links
Rolling Back to Previous Firmware Versions
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 factoryinstalled images are
overwritten and you cannot revert to them.
To roll back a firmware:
1. In the left pane, click Firmware Update.
2. In the right pane, click Launch Firmware Rollback.
The Firmware Rollback page displays a list of components for which rollback is available and the later versions are
selected by default.
3. Select the required rollback image and click Apply.
After the update process is complete, the system restarts. When applying more than one update, the system may
restart between updates directly into 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 for each update you want to apply.
Current — Displays the component version currently installed on the system.
Available — Displays the version of the available update.
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
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