Never install an older release than the firmware currently installed. The only exception would be if this is done under the direction of Raritan Support.
Firmware Upgrade Path — Due to file system changes in release 3.5.0, any updates from a firmware version older than 3.3.0 to 3.5.0 or newer will require an intermediate firmware update to 3.3.x or 3.4.x.
Note: Power Firmware has been renamed to Xerus™ Firmware
February 10, 2016
This firmware only applies to specific Raritan PX models, therefore the firmware file itself is not posted on this support page. If you have this firmware installed on your PDU, you can find accompanying documentation below.The attached PX3 3.1.21 Release Notes below contain a list of Raritan PDU models this release may be installed on, along with a list of specific issues addressed in this release. If this firmware does apply to one or more of your PX models, and you want to upgrade to this LA release, contact Raritan Technical Support at one of the following locations for the firmware file:North America: firstname.lastname@example.org Europe: email@example.com Asia Pacific: firstname.lastname@example.org