8 days old S7 stuck on boot screen with blinking blue light

[Sak2300]

I bought my new Samsung Galaxy S7 on April 11, 2016 and was pretty impressed with how fast it was compared to my S5. After 8 days while sitting under an umbrella in the pool and browsing through Flipboard the phone became unresponsive while hanging to the Samsung boot screen!
After further troubleshooting and trying all the power + volume combo I found online, it started rebooting while a blue led was blinking.
The technician at the shop I bought it from was baffled and suggested sending it to the main branch for checkup.
Any idea what happened?
Is there a problem with this new model or it was only bad luck?

 

[KOLIO]

There's bound to be a lemon here & there,it just happened to be your luck that it landed on you.

You're well within the time period to exchange it for a new device, but, don't wait another day, YMMV on the return window expiration & then, your time will be spent dealing with warranty service/RMAs/etc.....