I saw the video and yes he sais everything up from 43 it's uncomfortable, the smartphone heats just for opening some messages or just going to options it goes to 34/33 from 30 in about 2 or 1 minute, with wi-fi on, facebook and some browsing 38C and gaming 39/38C, so I get the 'heavy load' temperature just by using wi-fi, facebook and some browsing, like you said its normal