Well, I have 9.1 essential sd card and a new 500 v2 control unit PCS 13.
I have read some threads on it here but need clarity.
From what I leanrt, you cannot just plug 9.1 card into PCS13 control unit. First need to boot it with 8.1 or 9.0 sd card and then boot it with 9.1 sd card? ISsthat right.
Appreciate if you could guide the step by step process.