Hi,
I’m also interested in that point, because I didn’t find the solution either.
What I did in the past was indeed :
1. Move the device from his current “production v9.x” policy group to an “upgrade v9.xx” policy group, for the firmware upgrade.
2. Then move this device to a new “production v9.xx” policy group for the app packages installation.
But with this method I have to manually move devices to severals groups, and I prefer automate the whole process. So I came back to only one policy group with firmware and apps installation together. Ok apps are installed twice, but at least I move the device only once, in only one upgrade group.
So it would be good if in WMS there was a priority installation between firmware and apps, or the thin client know that firmware had to be installed first !