Blocked by Old Apple ID
Had a iPhone 4 and acquired an iPhone 6. Connected to iTunes and loaded the 4 data onto the 6 gave it my Apple ID and password which it accepted then a box with my old apple ID shows up. No idea where it came from. When I try to enter any of my possible passwords nothing is accepted which is effectively blocking my access to the phone. Apple knows it's me since it recognizes all our devices including the new iPhone 6 when I go online to my Apple ID page. It says that I am signed into the iPhone 6 even though the phone is presenting me with my old ID. ***? I suspect I can't even wipe the phone under these conditions. If no advice come I guess I'll phone my local store tomorrow.
iPhone 6, iOS 11.3.1