Why can't I change the Wide Mode Settings on Sony's Android TV?

This may occur on your TV due to the following:

• Wide mode settings aren't available during a 4K playback from an external device such as a Blu-ray Disc™ player, game console, etc.
   
• If you connect an external device or video source to an A/V receiver that has 4K Pass-Through feature.
  • Make sure to connect the external device directly to your TV.
     
• If you stream an app and then press the WIDE button, the TV displays [Feature not available].
  • This is normal.
  • Change the aspect ratio in the app's settings.
  • Most applications don't have an option to adjust the aspect ratio.
  • Make sure to check for available app updates.
     
• If you watch a video through Screen Mirroring.
  • Change the aspect ratio on the mobile device.
  • Contact the mobile device's manufacturer for more information.

Important: Make sure to install the TV's latest software update.