Upgrading Grandstream devices via http/https/tftp can sometimes be difficult as there is no progress bar to monitor if the upgrade is actually taking place. Grandstream devices (depending on the model) can take a while to download the firmware before upgrading the device. Syslog is a great tool you can use to monitor this process.


Step 1

Enable syslog on your device and send it to your syslog server:

Step 2

Set firmware URL on your Grandstream device to your firmware server or Grandstream's firmware server (

Step 3

Reboot your device and then review the logs: