Iphone 6s automatically shut down
Hi All,
I just got my iphone 6s last week. And it has happened several times that the phone went dead by itself when it was in locked mode. Even worse, it was not just off, because the only way to turn it on was to hold home and lock keys for 10 sec. It became extremely frustrating when it happened at night, because the alarm would stop working, and could not wake the phone.
It didn't happen when I was using the phone, but when it was locked and sit there by itself.
I have upgraded to the latest iOS.
Any idea of the cause of the issue?
Thanks!
iPhone 6s, iOS 9.0.2