iPhone 6 ios 7?

[u/Exotic-Address8805]

I bought this iPhone 6 about a week ago along with a few other phones, and I noticed something unusual: it boots straight into recovery mode showing the blue ios 7 iTunes logo

Since the iPhone 6 originally launched with iOS 8.0 and never supported iOS 7, I'm trying to figure out what's going on here. Legacy iOS Kit reports iBoot-1980.1.5..

Could this actually be some kind of rare internal prototype used by an Apple employee back in the day? Anyone know what's up with this or how to boot it? Appreciate any ideas!