Just one simple question: i have one RPG 300 with corrupted firmware version 220.127.116.11161. Can i download same firmware from support.polycom.com, upload it to USB stick and upgrade without sw_keys.txt? Or i need key even if i want to "upgrade" software from same version to same version?
And if i want to upgrade RPD to version 4.3.1 do i need to put sw_keys.txt to the folder with firmware? Or just put firmare to the usb stick and it will be enough to upgrade?