I am wanting to upgrade the firmware on my I2004 series phones. We are using 0604DAX from 2007. From Nortel's site all the releases of the firmware do not list CS1K 3.0 as supported. Does anyone have any experience loading newer firmware with the old Succession 3.0? I was thinking about trying it but of course don't want to break anything. I have a test I2004 here I could push the firmware to. Thoughts?