In the account section choose edit. Enter the email address that you want to use.
Learn what to do if you didn t get the email.
How to change apple id in iphone. Choose change apple id. You can log in with a different existing apple id from here. Tap your apple id banner at the top of the screen.
Scroll to the bottom and tap sign out. Launch the settings app on your iphone or ipad. To change the currently logged in apple id on an iphone you just need to open the apple id menu in settings tap the apple id field at the top of the screen and tap sign out.
If you changed your apple id to a third party email address check your email for a verification code then enter the code.