Black line displays on screen: HTC One S

Troubleshoot an issue where a black line displays on the bottom and/or side of the screen. The line may intermittently or continuously display.


To fix this issue:

  1. Uncheck any developer options located under Settings, Developer options.
  2. Return the device to the default wallpaper: Settings, Personalize, Wallpaper, HTC Wallpapers.
  3. Uninstall the following downloads:
    • Third party launchers under Settings, Apps, Downloaded.
    • Third party lock screen or home screen widgets by navigating to Settings, Apps, Downloaded.
    • Any third-party application where the issue occurs.
  1. Test if the lines still appear.
  2. If problems continue, perform a master reset.
  3. Reinstall applications one at a time to determine the problematic application.