Hi I'm having exactly the same problem. If I start watching now TV or any programs or using my phone at length my phone is red hot. If I video call someone and it doesn't matter which app I use. The other callers tells me it sound like a robot talking and I have to call back and then its ok. When I'm doing my Internet searches it freezes and generally normally at the most important time. I was talking to a friend and she was having exactly the same problems but told me she had contacted Samsung and they said they had not had any reports of this happening. Definitely and problem with the phone.
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