they can put a new battery in your 4 too.
This only ever happens in limited circumstances, where there is a supply limitation on replacement phones.
But - they own the phone. Whether they want it back or not, they own it until it's paid off.
I'm not expecting this thread to yield any real results... Just curious if the Genius Bar ever let anyone upgrade rather than taking a replacement. I know this happens if they run out of the model you had. My mic sporadically works so I'm not sure if it's a software issue as some had. But maybe they'll let me upgrade to a 6 Plus if I pay a little. Doubt it lol.
Nope. They still have stock of the iPhone 4, and they can put a new battery in your 4 too.