Smart Sign

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Smart Sign icon
Smart Sign iPad

Smart Sign is an iOS app that shows product specs and is installed on the "Smart Sign" iPads inside Apple Stores. This app can’t be exited with the home button. There is a secret gesture to enter the app's control center on "Smart Sign" iPads which is shared on a need to know basis among retail employees and which has never been leaked.

Technical Investigation

The app itself is not what disables the home button; it is system-wide and enforced by SpringBoard. In fact, Smart Sign iPads have a .mobileconfig profile installed which sets the key SBStoreDemoAppLock to true in The only way to quit an app when this key is enabled is holding HOME and POWER buttons until the device reboots. As in Apple Stores the POWER button cannot be pressed, you should hold down the upper-right corner of the iPad's frame.

Apple sets the key in by using a mobile configuration profile installed on the device. The profile can be removed with the password "Apple123". If you want to try it on your device, you can find here a similar version that works on any device and that is not locked.

External Links

  • Cult Of Mac: How the Smart Sign iPads at Your Local Apple Store Actually Work
  • iDownloadBlog: An Exclusive Look Inside Apple’s Smart Sign