It is really hard to admit but the Sony Xperia S has a bug that has to be fixes as soon as possible. I think you know that the Xperia S is Sony’s latest achievement and the only thing it misses is a quad-core processor. But even with a dual-core heart it works great and impresses with its productivity. Unfortunately, it looks like the Xperia S has a problem that makes this smart-phone less wanted. So, the problem is that when the phone is exposed to temperatures over 40 degrees Celsius, you can experience a yellow tint on its 720p screen. While Sony says that the problem is only in a limited number of handsets, we think that things are not as good as Sony claims. The good news is that if by any chance you come across with this problem, do not hesitate and turn to the closest local customer service center and your smart-phone will be fixed for free. Also, Sony assures that they are working on this problem and you won’t see anything like this in the future.