The latest firmware versions can be downloaded from the Yealink Website
- Select the relevant Product Range → Phone Model.
- Scroll down to Firmware & Release Notes and select the firmware version (Please note the latest firmware is located listed first and will be marked “New”)
- Save the firmware to your desired location on your device.
- Upgrade the firmware via the phone’s web interface. Detailed steps can be found here: How do upgrade the firmware on a Yealink Phone?