It was a Balance 20 that is now taken apart and in parts everywhere. I couldn’t resist to see what was inside. Unfortunately I don’t know where the case is anymore but I can tell you it was a hardware revision 1 running the latest 6.2.2. I tried updating to original 6.3.0 and device just bricked itself. I went on customer site and could not get into the device after factory resetting it like 5 times, using different computers I mean you name it. Even when we brought back to office none of us could get in so we scrapped it.
FYI: Last night I tried to update another customer Balance 210 HW Revision 4, 1925-09AE-750D, 6.2.2 build 2037 to the latest 6.3.1 and none of the VoIP phones on my VoIP VLAN came back up online. I checked all switches onsite and all configs were fine, no errors, no spanning tree errors, all 30 or so computers on native VLAN were working fine, auto voice vlan was still intact.
I tried to disable my voice vlan in the 210 and re-enable and still nothing, rebooted all 5 switches and still nothing. I ended up reverting back to 6.2.2 build 2037 and all phones came back up. This happened to another customer on a balance 20 when I went from latest 6.2.2 to original 6.3.0 but when I upgraded this one to 6.3.1 latest then everything was normal again. Im not sure but it sounds like there is some bug or disconnect in the code for the firmware with something with the vlan’s created in balance. Or I dk maybe just something with the particular device which I doubt being everything works fine on other firmware’s.