1. ALWAYS create a backup of your configuration and data before a firmware upgrade.
2. If downgrading from firmware version 18.104.22.168+ to 22.214.171.124 or lower, users must factory reset the UCM and restore a backup created on the corresponding lower version to minimize potential issues from the downgrade. Please note that restoring a backup created on 126.96.36.199+ to a UCM on 188.8.131.52 or lower may cause abnormal system behavior.
3. For UCM6xxx on firmware earlier than 1.0.20.x, please upgrade to 184.108.40.206 first, then upgrade to 1.0.20.x. To upgrade to 220.127.116.11, please check 18.104.22.168 release note “Important Upgrading Note” section and follow the instructions.
4. It is recommended to upgrade UCM to latest firmware for product lifespan and security improvements.
Download UCM6510 Firmware Files:
Previous Firmware Files:
UCM6510 22.214.171.124: Firmware File
UCM6510 126.96.36.199: Firmware File
UCM6510 188.8.131.52: Firmware File
UCM6510 184.108.40.206: Firmeware File
UCM6510 220.127.116.11: Firmware File
UCM6510 18.104.22.168: Firmware File