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Unable to Downgrade Firmware | Getting an error: This image version is not allowed on this unit

RUCKUS Team Member

Issue noticed is that we are unable to downgrade firmware on the switch with an error “This image version is not allowed on this unit/stack, please refer to the release documentation.”

>>Checked running 8095h version

 ICX7150-24P Switch #show version
Copyright (c) Ruckus Networks, Inc. All rights reserved.
UNIT 1: compiled on Aug 31 2022 at 02:20:24 labeled as SPS08095h
(31457280 bytes) from Primary SPS08095h.bin (UFI)
SW: Version 08.0.95hT211
Compressed Primary Boot Code size = 786944, Version:10.1.25T225 (mnz10125)
Compiled on Mon Aug 12 10:58:28 2022

 >>Getting an error on copying the image file SPS08090jufi.bin, as want to downgrade it to the 8090j version according to the requirement.

ICX7150-24P Switch#copy disk0 flash SPS08090jufi.bin primary
This image version is not allowed on this unit/stack, please refer to the release documentation.

>> Verify the unit is running a newer Power Over Ethernet (PoE) chipset (PD692220), that will be supported in the code 08095h or higher. The New PoE chipset does not support releases older than 8.0.95h or lower patches and 9.0.10d or lower patches, so we cannot downgrade the firmware to older releases if it’s upgraded to or above 8095h and 9.0.10d.

>>RMA’d switches may also come with the new PoE chipset and their minimum required software versions. In that case, if the stack has an older software version, the stack will need to be upgraded to the same software version as the RMA switch before replacement.


Products affected: Ruckus ICX7150, ICX7450


>>Please find the below link to the technical Support Bulletin which provides additional details related to symptoms, workaround, and corrective measures.

Command to verify the chipset details: 

#Show inline power detail

General PoE Data:

02.2.4 Build 002