If you have an iPhone that is activation locked, you may need to wipe it in order to be able to use it. To do this, here are the steps you should take:
1. Make sure the device has been backed up on either iCloud or iTunes. This will ensure that all data stored on your phone is safe and secure before wiping it.
2. Go into Settings > General > Reset and choose "Erase All Content and Settings". This will delete all content from the device, including any associated Apple ID information which makes it possible for anyone else to activate it with a new account once wiped.
3. Once done, navigate back out of settings and restart your device - this will complete the process of wiping the activation lock from your iPhone!