iPhone 11 Pro Max activation lock
So my sister gave me her 11 Pro Max & We tried to unlink the device from her iCloud so we can use it. The phone she gave me is currently locked to owner & we changed her iCloud password & removed it from her find my iPhone. Shes the original owner but she doesn’t have receipt from when purchased. What do i do?
[Re-Titled by Moderator]
iPhone 8, iOS 16