How do I change the Apple ID of a iPhone 11 Pro Max that my employer supplied me?
I recently took ownership (Verizon cell phone account) of a company Apple iPhone 11 Pro Max provided me. It had an Apple ID using my business email. I wish to Change the ID to my current Apple ID I have already established for my Apple TV and old Apple music files. How can I accomplish this without losing all my contacts and pictures on my Apple iPhone 11 Pro Max?
[Re-Titled by Moderator]
iPhone 11 Pro Max, iOS 16