I am a little confused on the firmware path to get my 7961s to the latest firmware. I would ultimately like to get them running 9.1(1). They are currently running fw 7.0(3) on CME 8.6. What would the version upgrade path look like to get them to 9.1(1)? I have tried upgrading them to 8.5(3)SR1S but that did not work. Do I need to upgrade to an earlier version? Instead of guessing thought I would ask here.
Thanks in advance.
Did you try the "no create cnf" and "create cnf" under telephony service after removing the
You are most correct
Firmware Upgrade Issues for SCCP
Note For all SCCP firmware upgrades from firmware release versions earlier than 8.3(3) to version 9.1(1)SR1 or greater, you must first upgrade your firmware to an intermediate version (8.3(3) - 8.5(2)) then upgrade to 9.1(1)SR1.
Note This section applies to the Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, 7962G, 7961G-GE, 7961G, 7945G, 7942G, 7941G-GE, 7941G, 7911G, and 7906G.
The following upgrade issues apply:
•If you are currently running firmware earlier than 6.0(2) on a Cisco Unified IP Phone and want to upgrade to 8.x(x), you must first install an intervening 7.0(x) load to prevent upgrade failure. Cisco recommends using the most recent 7.0(3) load as the intervening load to avoid lengthy upgrade times.
•If you are currently running firmware 6.0(2) to 7.0(2) on a Cisco Unified IP Phone and want to upgrade to 8.x(x), you can do so directly. However, expect the upgrade to take twice as long as usual.
•Device packs are required to enable IP Phones in the Cisco Unified Communications Manager database. For Cisco Unified CallManager 4.2 and earlier, these device packs are required. For Cisco Unified CallManager 4.3 and Cisco Unified Communications Manager 6.0 and later, you must run the device pack and reboot the Cisco Unified Communications Manager server.