Factory resetting a Yealink phone is a simple procedure:
Locate the OK key on the phones base.
Press and hold the OK key until you see a prompt on the screen.
Press the OK soft key (below the screen) to confirm the reboot.
Wait for the reboot to complete.
Your phone may update its configuration after the reboot which may result in a second reboot process automatically within a minute or two of the first reboot.
¶ Applicable to Yealink W52P/H, W56P/H, W60P, W70B
Follow the steps below to factory reset your Yealink W52P/H, W56P/H, W60P, W70B device in order to bring back the factory default settings. This must be done before provisioning your Yealink W52P/H, W56P/H, W60P, W70B in case the device has residual settings of a previous configuration.
¶ Reset Yealink Base Station to Factory Defaults: W52P, W56P, W60P, W70B
Turn off the device.
Hold down the “Connect” button located on the base of the device.
Power on the device while keeping the “Connect” button pressed.
Wait until all the 3 LED lights are statically ON.
After restart, your Base Station will be successfully reset.
¶ Reset Yealink Handset to Factory Defaults: W52H, W56H, W73H
Navigate to “Settings” → “System Settings” → “Handset Rest” → “OK”. When the message “Reset handset to default” appears press “Enter” and insert the PIN “0000”. Press “Yes” to confirm.