My iPad Pro just died for no reason

My iPad Pro stopped working completely today, I have tried hard resetting it holding the power and home button for 10 seconds, even for 60 seconds and nothing happens, nothing appears on the screen, no even the Apple logo.

I charged it 100%, unplugged it, worked with it this morning for a couple minutes checking emails and updating apps, went out to do some things and when I was back home I found it dead, just simply like this, completely dead, it doesn't turn on at all, the Apple logo doesn't appear, tried connecting to my computer and the computer didn't detect it, tried a hard reset while it was plugged in into my computer with iTunes launched, no sign of life at all, iTunes didn't detect it and Windows doesn't detect or make a sound that a USB device was connected.

What's going on? Anyone else having the same issues? I've been using the iPad Pro since november without any problems, I even installed the first public beta 1 for iOS 9.3 back in december and I was working perfectly with iOS 9.3 beta 3, but updated to iOS 9.3 beta 4 yesterday and less than 24 hours my iPad Pro died completely.

Any suggestions? Is this a known issue?