Hi everybody , I don't know if this is the right place to post this problem but I didn't know where to go I bought Sony Xperia Z2 recently (about 3 weeks ago) , yesterday I noticed a very small white dot on the right side of the screen , it is very very very small and not noticeable , I only noticed it on black background while using the phone in the dark , A friend said that it is called a dead pixel , but I used to think that a dead pixel color must be black Another friend said that this happened because I was using phone on max brightness (without using 'adapt to lighting conditions) , I only did this two or three times for testing , does this really cause this problem ?? anyone have any idea what is this and is there any solution , and may this happen again in the future ?? thanks in advance