I upgraded a C60 codec to TC 5.1.5 without a release key . I tried to downgrade it to TC 4.1 but it will not downgrade. Any suggestions on how to downgrade? The reason I do not have a release key for TC 5.1.5 is because the compnay is having a dispute aboot the service contract. So in the meantime I need to get this codec up and running. Thanks
It's highly recommended that you upgrade your C20 to software version TC7.3.3.
If your endpoint does not have an active service contract, you can contact the TAC and request a TC7 release key as per the "Customers Without Service Contracts" section of this security advisory: Cisco-sa-20150320-openssl.
I haven't tried myself to downgrade from TC5.1.5, so not sure if the error message you're getting is normal or not. But to workaround the problem, enable the root account first and use the "selectsw" command to boot on previous image software, which might still have TC4. More details are available on this forum if needed.
Have you tried swapping software slot?
C60 have two software slot and you may swap active software slot to revert back previous software version.
BTW, possibly TC4.1 software you have locally corrupted so maybe you want to double check MD5 checksum.
Or download TC4.1 software from Cisco Site once again making sure you have working software.
Hmm, no luck then!
Try to downgrade to TC5.0 first and then further down.TC5.1 has a strict check of the version number in the package and that could be the issue.
Old TC sw versions can be found on Tandberg FTP:
Have you tried to download software by using SCP file transfer method?
This is other method for software upgrade/downgrade.
Here is step with recommend application.
C60 should now boot up with latest software version.