Resolved! CICM ISE upgrade - invalid ISO signature
It's been 4 hours now that I'm trying to upgrade the CICM of a C220M5 on which our ISE 2.7 patch 10 is installed.It runs BIOS 4.0(1e)I eventually got the same problem reported here:https://community.cisco.com/t5/unified-computing-system-discussions/u...