We have a Cisco UC520 phone system and a number of 7962 phones, all working fine. After two phones failed recently we wanted to replace them with 7961s, one of which was previously used on a non-Cisco VoIP system and the other of which was unused.
The previously unused phone connected successfully to the UC520, however the one that had been reset boots then displays its IP address, "Upgrading", and the file name "term61.default" for a short while before starting the loop again.
I have downloaded and installed (by dragging and dropping the zip file in CCA) the latest phone firmware (https://software.cisco.com/download/release.html?mdfid=279251499&flowid=46206&softwareid=282074289&release=9.4(2)&relind=AVAILABLE&rellifecycle=&reltype=latest
I have also followed this guide to check the existence of the phone load files and all seems ok (although the XMLDefault7961.cnf.xml file appears to be blank):
After I added this phone load (there was none present previously for the 7961) the working 7961 does not upgrade (but continues to work fine) and the other one just reboots in a loop as before.
How can I make the 7961 function normally? Thanks in advance,