Remember to log out of iCloud before selling an iOS device

Signing out of iCloud will deactivate the Find My iPhone function, which might otherwise prevent a new owner from activating a device.

Before selling or giving away an Apple iOS device, users need to sign out of iCloud and erase all contents and settings. Otherwise, the new owner may not be able to activate and use the iPhone or iPad.

This is because of the Find My iPhone function, which helps locate a device and block it remotely in case of theft or loss. When you sign out of iCloud, this function is deactivated.