If you received this device from somone else: Contact the previous and ask them to erase thr device and remove if from their account. For complete instructions,read how to remove a device from a previous owner.s account.
If you are going to sell or give away this device. Make sure Find My iPhone is turned off and all your personal data has been removed from the device before giving to someone else. Read what to do before selling or giving away your iPhone,iPad,or iPod touch.