My batch 5 controller is labeled on the upper part of the metal piece
Model S7 Version 2.0
but bottom an the lower plate is Model S5 Version V1.71
BBB is not labeled only Q.C. PASSED
I'm having the same shutdown problem, and after seeing this post i checked, and i'm have the same thing. Both my S7s come with a board that says S5+ control board Version 1.6