If the phone gets stuck continuously displaying "Downloading XMLDefault.cnf.xml", it means the phone has failed to find its specific config, moved to the default config, and is now failing to download or parse that default file as well. Root Causes of the "XMLDefault" Download Loop
Before modifying files, confirm the phone is looking in the correct location.
file list tftp XMLDefault*
Common triggers:
Update Cisco IP Phone Firmware through Third-Party TFTP Server
Save the file exactly as XMLDefault.cnf.xml (case-sensitive).
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In some lab or recovery scenarios, you may need to repack manually. Cisco does not recommend manual editing, but you can force a rebuild:
: Uses or .
: The phone obtains an IP address, subnet mask, and DNS server via DHCP. If the phone gets stuck continuously displaying "Downloading
If your phone is stuck in a loop or fails at this stage, it is often due to one of the following issues:
To modify or "repack" the default configuration, you must first obtain the current version from your Cisco Unified Communications Manager (CUCM) or Cisco Unity Express (CME) TFTP server. Method 1: Windows Command Line
Open the file in an advanced text editor like Notepad++ or VS Code. Check the encoding settings and explicitly save the file as . If it saves with a Byte Order Mark (BOM) or as ANSI, the Cisco IP phone will fail to parse it. Step-by-Step Troubleshooting Checklist This public link is valid for 7 days