This feature is available if you don’t know the correct passcode for your iPhone or iPad after several attempts. Your device needs to be connected to a cellular or Wi-Fi network to restart the resetting process. You needed to update your locked iPhone and iPad with a connection to the Mac or the Mac. The ability to reset your iPhone or iPad without connecting to a Mac/PC aims to make resetting the device more simple and accessible for those who don’t have a right to access a laptop/computer. This also wont inadvertently make it easier to unlock a stolen iPhone or iPad because it still requires the user to enter their Apple ID to complete the reset process. Here’s how it works: After a few failed password attempts, there’s a key to the Erase iPhone app. Once you tap that option, you need to enter your Apple ID and password so that you can deregister your account. After that, your iPhone/iPad will reset. To learn more about this feature, visit the Apple Support page. Source: Apple Via: 9to5Mac.