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Community Member

How to downgrade a device pack

Hello I installed the latest device pack in a callmanager 5.1 cluster. I am having problems with the ip phone getting the new firmware ("tftp auth fail") and I wish to install a device pack older than that; How can I make a downgrade of the device pack?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: How to downgrade a device pack

There is no downgrade or uninstall concept right now on linux appliances. You can install an older FW for the phones you have and change the device defaults to use it.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
3 REPLIES
Cisco Employee

Re: How to downgrade a device pack

There is no downgrade or uninstall concept right now on linux appliances. You can install an older FW for the phones you have and change the device defaults to use it.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
Community Member

Re: How to downgrade a device pack

Thanks for your help. When do I change the device defaults, before or after rebooting the ucm once I have installed the older device package?

Cisco Employee

Re: How to downgrade a device pack

1st of all, unless you install a device package to provide support for a new model there is no reason to reboot. That's explained in documentation.

What you need to do is install an older firmware, NOT a device package.

HTH

java

if this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
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