6s Plus Die after install 9.3.3
iPhone 6s Plus, iOS 9.3.3
Did you try to connect in recovery mode, as explained in this article?
If your iPhone, iPad, or iPod touch won't turn on - Apple Support
If this does not work, you'll have get the phone serviced.
i try everything! i learn all about how recover, restart, backup, etc, finally, the iphone die, never turn on again, i live in Argentina, and my apple authorized Service provider its 900 kms far, really buy a IPhone 6s Plus it was the worst inversion i made in my life!
Did you already contact your provider? In some countries, the carrier can also take care of that.
6s Plus Die after install 9.3.3