How to Reset a Yealink Phone: Complete Step-by-Step Guide

Learn how to reset a Yealink phone using the menu, keypad, or web interface. This guide covers soft resets, factory resets, and what to do if you have forgotten the admin password.

Resetting your Yealink phone can fix most issues in minutes. Whether you are dealing with a frozen display, a forgotten admin password, persistent call quality problems, or a phone you need to wipe before reassigning to a new user, knowing how to reset a Yealink IP phone is a practical skill for any IT admin or office manager. This guide covers every reset method available for Yealink devices, including the menu-based factory reset, the hard reset via keypad, and the web interface option for remote administration.

Soft Reset vs. Factory Reset: Which One Do You Need?

Before doing anything, it helps to know which type of reset your situation calls for.

Soft reset (reboot): This is the equivalent of restarting any device. It clears the phone’s active memory, closes any stuck processes, and brings the system back up fresh. It does not erase any settings, accounts, or call history. Use this first for minor issues like a frozen screen, audio problems, or the phone not registering properly.

Factory reset: This wipes the phone back to its out-of-the-box state. All configured accounts, contacts, speed dials, call history, and custom settings are erased. Use this when you are reassigning the phone to a new user, transferring it between organizations, troubleshooting persistent issues that a reboot does not fix, or recovering from a lockout.

Important: A factory reset is permanent. If you have custom configurations you want to preserve, document them or export a backup via the web interface before proceeding.

Method 1: How to Reboot (Soft Reset) a Yealink Phone

If you just need to restart the device without losing any settings, this is the method to use.

Option 1: Through the phone menu

Press the Menu button on the phone.
Navigate to Settings.
Select Advanced Settings.
Enter the admin password when prompted (the default is admin).
Select Reboot.
Confirm when prompted.

The phone will restart and come back online within 60 to 90 seconds.

Option 2: Power cycle

Unplug the network cable (or PoE cable) from the back of the phone, or unplug the power adapter if used.
Wait 10 seconds.
Plug it back in.

The power cycle method works for any Yealink model and requires no menu navigation. It is the fastest way to force a reboot when the display is unresponsive.

Method 2: Factory Reset via the Phone Menu

This is the standard method for resetting a Yealink phone when you have access to the admin password.

Press the Menu button on the phone.
Navigate to Settings (or Features on some older models).
Select Advanced Settings.
Enter the admin password when prompted. The default admin password is admin on most Yealink models. If this has been changed and you do not know it, skip to the section on resetting without the admin password below.
Select Reset to Factory Settings (sometimes labeled Factory Reset or Reset Config).
Confirm the reset when prompted.

The phone will display a progress screen and restart automatically. The process takes one to three minutes. When it comes back up, the phone will be in its factory default state and ready for provisioning.

Method 3: Hard Reset via Keypad During Boot

If you are locked out of the admin menu and do not know the current admin password, the keypad reset during boot is the most reliable recovery method.

The exact sequence varies slightly between models, but the general process works as follows:

For most Yealink T-series phones (T19, T21, T23, T27, T29, T41, T42, T46, T48, T52, T54, T57, T58):

Unplug the network cable from the back of the phone.
While the phone is powering up (during the initial boot sequence), press and hold the OK button (the circular button in the center of the navigation pad).
Continue holding the OK button until the phone displays a reset confirmation screen or a prompt asking whether you want to reset to factory settings.
Select Yes or confirm using the appropriate softkey.
The phone resets and reboots.

For Yealink T4 series with touchscreens:

The keypad method may differ. On touch-enabled models, holding the Mute key during startup sometimes triggers the factory reset prompt instead of the OK button. Check your specific model’s documentation if the OK button method does not produce the prompt.

The timing matters. You need to press and hold the key during the initial seconds of the boot sequence, before the Yealink logo fully loads. If you miss the window, unplug the phone and try again.

Method 4: Factory Reset via the Web Interface

If you have access to the phone’s IP address and admin credentials, the web interface gives you a clean remote reset option without touching the physical device. This is useful for managing multiple phones across an office.

Find the phone’s IP address. You can do this by pressing Menu > Status on the phone itself, which displays the current IP.
Type that IP address into a web browser on a computer connected to the same network.
Log in using the admin credentials. The default username is admin and the default password is admin.
Navigate to Settings > Upgrade or Settings > Configuration.
Look for the Reset to Factory button (the exact location varies between firmware versions but is typically in the Upgrade or Advanced section).
Click Reset and confirm.

The phone will reset and reboot. The web session will disconnect during the process and you will not be able to reconnect until the phone has finished restarting.

How to Reset a Yealink Phone Without the Admin Password

If the admin password has been changed from the default and you do not know the current value, you have two practical options.

Option 1: Keypad hard reset during boot This is the method described in Method 3 above. It bypasses the admin password requirement entirely because it is initiated at the hardware level during boot, before the operating system fully loads.

Option 2: Contact your IT administrator or VoIP provider If the phone was provisioned by an IT team or a hosted VoIP service provider, the admin password may have been set during provisioning. Your IT admin or service provider can supply it, or they may be able to push a remote reset through the provisioning server.

Important note for managed deployments: If your Yealink phone is managed through a provisioning server (RPS or YMCS), a factory reset may not fully remove the provisioning configuration. The phone may automatically re-provision from the server when it restarts. Contact your administrator before performing a factory reset on a managed device.

What Happens After a Factory Reset

After the factory reset completes, the phone returns to its default factory configuration:

All SIP account registrations are removed
All contacts and speed dials are cleared
All call history is erased
Custom ringtones, background images, and display settings are removed
The admin password reverts to admin
The phone will attempt to find a provisioning server if one was configured in the DHCP options of your network

At this point, the phone needs to be set up again either manually through the menu and web interface, or automatically through your organization’s provisioning system.

Model-Specific Notes

Yealink T21 and T23: Older entry-level models. The keypad hard reset using the OK button during boot works reliably on these models. Menu navigation is straightforward with no touchscreen.

Yealink T46 and T48: Mid-range models with larger color displays. The factory reset option is found under Menu > Settings > Advanced Settings > Reset to Factory Settings. These models support the web interface reset cleanly.

Yealink T57W and T58A (touchscreen models): Touch-enabled phones. Navigate through the on-screen menu to Settings > Advanced > Reset to Factory. The keypad hard reset requires holding the Mute key or the OK key depending on firmware version.

Yealink W52P and W56P (DECT handsets): These wireless desk phone systems reset through the base station rather than the handset. Hold the paging key on the base for approximately 10 seconds to initiate a base station reset.

Troubleshooting: What to Do When the Reset Does Not Work

Phone not responding to keypad during boot: Make sure you are pressing the key within the first few seconds of powering on. The window is short. Unplug and try again while watching the boot sequence closely.

Web interface not loading: Confirm the phone is on the same network as your computer. Check the IP address from the phone’s status menu. Try a different browser if the page does not load.

Reset completes but phone re-provisions with old settings: The phone is managed through a provisioning server. Contact your VoIP provider or IT team to remove the device from the provisioning system before performing a factory reset.

Phone stuck in a boot loop after reset: This usually indicates a firmware issue. Connect the phone to the web interface immediately after it comes up momentarily and check the firmware version. A firmware upgrade through the web interface often resolves boot loop issues after a failed reset.

The Short Answer

To reset a Yealink phone, go to Menu > Settings > Advanced Settings, enter the admin password (default is admin), and select Factory Reset. For a hard reset without the admin password, unplug the phone and hold the OK button during boot until the reset prompt appears. For remote management, log into the web interface using the phone’s IP address and reset from the Settings panel. After any factory reset, the phone returns to default settings and needs to be re-provisioned before it can make and receive calls.