Apple ID Issues
So I had damaged my phone and my friend gave me his old one, and I logged into my Apple ID on his phone. I got a new phone, my current one, I logged out of his and for some reason in my new phone, his name appears as if it were mine. It has my apple ID and my information but it displays his name and when I click on update Apple ID Settings it asks for his apple password. How can I remove this? since I do not wish to have his Apple ID on my phone and wish to be able to update those settings
iPhone 7 Plus, iOS 13