Ruckus VSZ-D Essentials version 3.4.0.0.976 upgrad to 3.6.2.0.78 upload image failed. Reason: Unsupported version

[jako_nurges]

Hi,
i have been trying to upgrade my virtual smartzone essentials into 3.6.2
I read the release notes and it says i can directly upgrade from 3.4.0.0.976 int othe version.
When i try uploading the ximg (vscg-3.6.2.0.78.ximg) into the smartzone it uploads it, tells me it verified it and and everything is good to go and then cancles with the error message unsupported version. I have attached image below of the error + success message.
I tried also with vscg-3.5.1.0.862 and got the same result.

[martin_martin]

If you have a vSZ and vSZ-D, then you first need to upgrade the vSZ before you can upgrade the vSZ-D.

regards
Martin