Resetting to Factory Default and Installing Custom Firmware on a Yealink Phone Follow

Overview

Follow this article to reset your Yealink phone and install custom firmware. You should do this before provisioning your phone.

This article covers:

  1. Accessing the Phone's Web Interface
  2. Resetting the Phone to Factory Default
  3. Installing the Custom Firmware Using the Phone's Web Interface

Prerequisites

Accessing the Phone's Web Interface

Note: Screenshots in this section apply to T4 and T5 series phones. Your phone's interface may be different.

  1. Access the phone's main menu:
    • T4 series without touchscreen: Press the button associated with Menu
    • T4 series with a touchscreen: Tap Menu on the home screen.
    • T5 series with a touchscreen: Swipe left from the home screen.
  2. Navigate to the status screen.
    • T4 series without touchscreen: Use the phone's directional pad to select Status.
    • T4 series with a touchscreen: Tap Status.
    • T5 series with a touchscreen: Tap Settings > General.

  3. Make note of the IPv4 address.
    • T4 series without touchscreen

    • T4 series with a touchscreen

    • T5 series with a touchscreen

  4. Open a web browser on a computer that's connected to the same network as the phone.
  5. Enter the phone's IP address.
  6. Log in to the phone's web interface as an admin.
    Note: The default admin username and password is admin / admin. If you do not know your username or password, contact the vendor of the phone. If you set the admin password globally, you can view the password in the Zoom web portal.

Resetting the Phone to Factory Default Using the Phone's Web Interface

Note: Older Yealink devices may have a slightly different web interface that has the green header bar.

  1. Navigate to Settings > Upgrade.
  2. Under Reset, click Reset to Factory to reset the phone to factory default. The device will restart automatically.

Installing the Custom Firmware Using the Phone's Web Interface

  1. Navigate to Settings > Upgrade.

  2. Click Browse or Choose File, find the directory of the custom firmware file, then double-click to select it.
    Note: See the supported devices list to download or verify the custom firmware version.
  3. Click Upload to start the firmware upgrade process. The phone will reboot and install the custom firmware. The process will take 2-3 minutes.
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