1. UCM6102, UCM6104, UCM6108 and UCM6116 will be end-of-life soon. 1.0.18.x will be the last firmware for UCM6102, UCM6104, UCM6108 and UCM6116.
2. Backup your data including configuration before firmware upgrade is recommended.
2. For UCM6xxx on 1.0.17.x, please upgrade to 126.96.36.199 directly.
3. For UCM6xxx on firmware earlier than 1.0.17.x, please upgrade to 1.0.17.x first, then upgrade to 188.8.131.52. To upgrade to 1.0.17.x, please check 1.0.17.x 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.