If you’re using an iPhone to run demos, you may want to remove the demo mode. This is a feature that allows you to run demos without having to worry about the phone freezing or crashing. To remove demo mode, follow these steps:

  1. Open the Settings app and select General.
  2. Scroll down and select Demo Mode.
  3. Toggle off the option and then delete the file named demo_mode.xsd from your Documents folder.