Preparation:

  1. Login to your IP Phone and verify the current firmware version under Status > System Info

Method 1 - File Upload:

Depending on your IP Phones current firmware version and model, you may have an option to upgrade the phone firmware using the file upload option.

  1. Login to your IP Phone and navigate to Maintenance > Upgrade and Provisioning and click 'Start' next to Upgrade Firmware:
  2. Download the latest firmware version for your phone from http://www.grandstream.com/support/firmware/
  3. Drag and drop the firmware file into the firmware upload window and click start to start the upgrade.


Method 2 - Firmware URL:

  1. Navigate to Maintenance > Upgrade and Provisioning and set the firmware server path to Grandstreams Firmware Server (or your own if desired). To locate the correct URL for your Phone model got to http://www.grandstream.com/support/firmware/ and copy the HTTP Upgrade Server path:
  2. Initiate a reboot, your phone should detect and start downloading the firmware on boot provided you have the following set:


Method 3 - Zero Configuration (Requires Grandstream UCM6xxx IP/PBX):

  1. Login to your UCM and navigate to Value-Added Features > Zero Config > Global Policy and set the firmware server parameters:
    Source: Select URL if you want to point to a firmware server or select Local UCM Server to upload firmware to the UCM directly making it a firmware server.