/mcpsolve the issue, restart the Load server or TFTP server (whichever server provides firmware loads). 5 An encryption error occurred on the phone while trying to load the new firmware load (image); reset the phone to correct the issue 6 The downloaded firmware load (image) is not encrypted. Verify that correct load (image) name is provided to the phone and that the server that provides firmware loads has that encrypted load (image) file 7 The downloaded firmware load (image) cannot be decrypted using the decryption key on the phone (resulting in an encryption key mismatch). If you have provided the image encryption key, try re- encrypting the image with the key that matches the key already on the phone, then attempt the download again. Otherwise, collect the phone logs from the time of this alarm (review the steps in the Administration Guide for the appropriate phone model to learn how to access the phone logs) and contact the Cisco Technical Assistance Center (TAC). 8 There is a problem with the encryption of the downloaded firmware load (image). Collect pertinent details such as the device's MAC address, device type, the firmware load ID, and phone logs from the time of this 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 312/343