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KanguruClone HD returning "S MAX" error message

Updated on Feb 19, 2026

My KanguruClone HD is returning a "S MAX" error message.

The KanguruClone HD will return a "S MAX" error when the HDD is reporting the wrong capacity to the controller. This usually only occurs on older units. Either there is something wrong with the hard drive, or a firmware upgrade will need to be performed on your HDD Clone Machine.

To proceed with FW upgrade, please contact Kanguru Technical Support at 508-376-4252