Today all of a sudden my iPhone 6s for no reason at all, not even was the battery charging, battery was about 89% or so went black screen, a few minutes later it started getting really really hot, and after maybe 10 minutes it smelled like burnt in the area of the charging port and also around the earphone port, I then proceeded to the nearest apple store and of course since i didn't have an appointment since this was a sudden thing i had to wait 2 hours and :15 minutes for a tech to see me, he then returns and tells me that he couldn't even power it on to read the serial number, and so he had to send it to repair?? I told him but its still under warranty, can you swap it for a replacement? He said not with the 6s, we have to send it to see if nothing was altered or any water damage, which none of the mention happen, so he then offers a loaner, I said its okay luckily I have a 6 and i put the sim into this one, so he then says give it 3-5 business days and we will get back to you??? So no more replacements while under warranty?? I was expecting a swap for my same 6s on the spot.