CNUT. Avoid Warning about 15.1.5 SM while upgrading 450 AP


while upgrading from to 16.2.1 450 and 450i APs using cnut there is a pop up warning says something like:
"Warning: SMs running firmware 15.1.5 or lower do not register to an AP running firmware 16.1 or later. Do you want to proceed with the upgrade anyway?"

I have to accept clicking "Yes".

This happen when my APs are *already* with a firmware, so it's unuseful.

The problem is that I have some scripts upgrading my devices from cli (./ returning the error:

No X11 DISPLAY variable was set, but this program performed an operation which requires it.

Can we aboid this warnig? Scripts don't have to have a human interaction.

At least when APs are already with a firmware > 16.1?

Thank you


We are sorry for the inconvenience.

We are aware of this issue and are trying to fix in the upcoming version of CNUT.