The phone is getting extremely hot No application opened.no tasks going on.and every other things are normal.but the battery draining like waterfall! Even.even after a long rest of the device.if you just call by cellular network trust me YOU CAN’T HOLD YOUR PHONE MORE THAN 2 MINUTES WITH NAKED HAND! if you measure the temperature of the phone after.long time for rest ( mmm.5 hours.) you will get AT LEAST 40°C and if you use it ( .like internet surfing, some apps) for some time.you will start to worry about your phone’s circuite to be damaged by over temperature.!