Display Issues

The following table provides tips for resolving display screen issues.


Possible Solution

There is no display or the display is incorrect.

If there is no display, power may not be correctly supplied to the phone. Do one of the following:
  • Check that the display is illuminated.
  • Make sure the power cable is inserted properly at the rear of the phone.
  • If your are using PoE powering, check that the PoE switch is supplying power to the phone.

Use the screen capture feature to verify whether the screen displays properly in the capture. Refer to Capture Your Device's Current Screen.

The display is too dark or too light.

The phone contrast may be set incorrectly. To adjust the contrast, do one of the following:
  • Adjust the contrast.
  • Reboot the phone to obtain the default level of contrast.

The display is flickering.

Certain types of older fluorescent lighting cause the display to flicker. If your phone is in an environment lit with fluorescent lighting, do one of the following:

Angle or move the Polycom phone away from the lights.

The time and date are flashing.

If the time and date are flashing, the phone is disconnected from the LAN or there is no SNTP time server configured. Do one of the following:
  • Reconnect the phone to the LAN.
  • Configure an SNTP server.

Disable the time and date if you do not want to connect your phone to a LAN or SNTP server.