Basic Troubleshooting Steps for All Models

• Check Power and Connections:
  • Ensure the phone is properly plugged into a power source or PoE switch.
  • Verify that the Ethernet cable is securely connected.
     
• Reboot the Phone:
  • Unplug the power adapter or Ethernet cable (if using PoE).
  • Wait 10-15 seconds and plug it back in.
     
• Check Network Connection:
  • Go to Menu > Status > Network Status to confirm IP address.
  • If no IP address is assigned, check the DHCP settings on your network.
     
• Check for Firmware Updates:
  • Navigate to Menu > Settings > Update & Reset > Firmware Update.
  • Compare the firmware version with Yealink’s official site.
     
• Reset the Phone:
  • Soft Reset: Menu > Settings > Update & Reset > Reset to Factory Settings.
  • Hard Reset: Hold the OK button for 5 seconds, then confirm.

Common Issues and Solutions

• Phone Not Registering to Server
  • Verify SIP settings (Menu > Status > Account).
  • Confirm credentials and server details in Menu > Settings > Advanced > Accounts.
     
• No Dial Tone or Audio Issues
  • Check headset/handset connections.
  • Test with a different handset or speakerphone.
  • Verify Audio Settings in Menu > Features > Audio.
     
• Wi-Fi Not Connecting (T53W/T54W)
  • Ensure Wi-Fi is enabled: Menu > Basic > Wi-Fi.
  • Check SSID and password.
  • Restart router if needed.
     
• Bluetooth Not Working (T53W/T54W)
  • Enable Bluetooth: Menu > Basic > Bluetooth.
  • Ensure the device is in pairing mode.
     
• Screen Freezing or Slow Response
  • Restart the phone.
  • Perform a factory reset if the issue persists.