Firmware for UCM6510 released as official today


Dear Grandstream Customers,

Firmware for UCM6510 is released as official today. The firmware and release note can be downloaded from:


  1. UCM6510 on firmware must be upgraded to first, then it can be manually upgraded to Please follow the instructions in the release note carefully to upgrade to firmware
  2. Backup is required before upgrading. Please prepare SD card or USB storage device to backup your configuration and data before upgrading.
  3. Once upgraded to, downgrading to any previous firmware version is not supported.

Please contact us should you have any issues. Thank you for your support for Grandstream products.

Technical Support
Grandstream Networks, Inc.


When I tried to upgrade, the 6510 display started reading “no IP, no provision” and i am not able to recover the system from this. Please help


what step did you do last?
-did the system reboot after upgrade?(sometimes it doesn’t prompt me during upgrade process)
-clear browser cache and try to log in anyway.


Hi, please can you let me know how do I know when the backup is done?


here you will find all the updates and technical notes