Open the Settings app
Tap Sign in to your iPhone
Tap Don’t have an Apple ID or forgot it?
Tap Create Apple ID
Enter your first name, last name, and birthday
Tap Next
Enter your email address or tap Get a free iCloud email address
Create a password
Confirm the password
Choose your country or region
Enter your phone number
Choose a verification method
Enter the verification code sent to you
Agree to the Terms and Conditions
Enter your iPhone passcode if prompted
Finish setting up your Apple ID
Sign in with your new Apple ID if needed