Our company currently using Zone director 1000 with firmware version 220.127.116.11 build 8 with 25 AP Licenses build inside it and the premium support already ended a long time ago. It manages 20 Ruckus Zoneflex 7363.
The problem is the client sometimes still not connected to the nearest access point causing high ping and random timeout during the Video Call, and I found out about "bss-min rate" command, but it only available on 9.3.x
I already search and read all the release notes for each firmware and guide.
So the plan in my mind is
18.104.22.168 (current) => 22.214.171.124.8 => 126.96.36.199.15 => 188.8.131.52.21
My question is, is it possible to upgrade the firmware without the premium support?
Also, is there any risk the new firmware will brick the controller? If the controller bricked, is there a way to recover it?