It wasn't the usage issue, even if you keep the camera open for 5 mins without doing any activity, with just active macro focus on the phone starts to heat up like anything.. Even during video calls with in 10 mins phone heats so much that you can't ...
I faced the same, replaced twice and still couldn't fix it, so finally returned back.. Samsung should think and do full testing before they roll the phones to public.. No need to hurry and make people suffer.. That kind of ruins the बरं image and **b...