64-bit iPhones and iPads get stuck in a loop when set to January 1, 1970

Take a 64-bit iOS device—iPhone 5S or newer, iPad Air or newer, iPad Mini 2 or newer, sixth generation iPod touch or newer—laboriously set its date to January 1, 1970, and reboot. Congratulations: you now have a shiny piece of high-tech hardware that’s stuck at the boot screen, showing nothing more than the Apple logo… forever.