I really doubt you got 2 defective systems in a row
I don't. This doesn't surprise me at all.
If he got them at the same store it's entirely possible, same batch, same build error. Its incredibly rare but happens to any electronics or anything. I worked an assembly line, when they ran out of parts they try things they shouldn't to meet numbers then it comes back and bites them.
Own: Xbox one, 360, PS3, Wii Richard is also known as Dick.