It appears you have not done anything wrong. I wonder if the UCM5.159.cbf may be corrupted as the UCM will check that the target firmware is of the same type as the one in the cbf file. We will test the cbf file tomorrow. We did not have time to cover the firmware upgrade procedure in the London Training course two weeks ago unfortunately but it really should be a simple process.
Can you try to upgrade the Ultra firmware to 5.145 which was what was used in the training rigs on the course, I have sent a separate email with details. This will establish that the upgrading process is working
The problem appears to be that using UCM 5.154 for the firmware upgrade, the UCM expects a login before the firmware upgrade is accepted. Hence if such a problem is encountered, login manually using the Monitor I/O screen by entering LIxxxx where xxxx represents the user code. This logs in the UCM and allows the firmware upgrade to proceed, This would obviously cause a problem when upgrading Comfort firmware because when Comfort firmware is being upgraded, it is not running and is not able to reply to the login. From UCM 5.156 onwards the firmware upgrade does not need a login to Comfort, and thus is more easily able to upgrade firnware