Once your software is installed, configure it to host the firmware file: Firmware Upgrade Guide - Grandstream Networks, Inc.
To upgrade your device firmware to version via TFTP , you generally follow a standard procedure of setting up a local TFTP server, preparing the firmware file, and initiating the transfer from the device's management interface or Command Line Interface (CLI) . General TFTP Upgrade Steps GarrettCom: Upgrading firmware with TFTP
To leverage TFTP (Trivial File Transfer Protocol) for upgrading to Firmware Version 1255 , you can implement a Direct Network Provisioning
: Locate the specific version (e.g., version 1255) on the manufacturer's official website (e.g., Cisco or Netgear).
firmware upgrade tftp://<TFTP_SERVER_IP>/<FILENAME>