Firmware Upgrade of Yealink IP Phones
The following document will outline how to upgrade the firmware of a Yealink IP phone using the device’s own web interface. This step is required prior to the provisioning of the phone to ensure that the bare minimum requirements and features are implemented into the device's firmware.
Important: If your phone’s firmware is too old, it may not accept the latest version supported by 3CX. You’ll need to contact the manufacturer to get the required intermediate versions and apply them in sequence. The device won't upgrade unless each required intermediate version is installed in the right order.
Check/Validate Firmware Version
In order to check the firmware version of your Yealink IP phone:
- Point your web browser to your phone’s IP address.
- Login to your account (default user/password: admin/admin).
- Navigate to “Status >> Status >> Firmware Version.” This number is your device’s running firmware
Upgrade Firmware
In order to manually upgrade your Yealink’s firmware:
- Download the latest supported firmware version for your model.
- Point your web browser to your phone’s IP address.
- Navigate to “Settings >> Upgrade >> Select and Upgrade Firmware.”
- Click “Browse” choose the firmware image file saved previously, and press “Upload.”
Last Updated
This document was last updated on 8 July 2025
https://www.3cx.com/sip-phones/firmware-update-yealink/