I have this weird issue - I tried to install newer 8831 phone firmware file on CUCM 10.5 cluster.
I have successfully installed on CUCM-sub. The CUCM Pub shows " No valid upgrade options were found" while installing 8831 phone firmware.
CUCM Cluster version: 10.5 ; 1 Pub and 1 Sub
Firmware Installation procedure:
Your feedback is appreciated.
Make sure the cop file is lying in correct path where sftp is running.
It is .cop file. The SFTP path is correct - I have successfully installed the firmware on CUCM-SUB in the same cluster via same method ( i.e. SFTP server). And this is really confusing me.
Once you put cop file path in sftp in Create a new folder (admin) puts that cop file in admin folder then you are able to upgrade.