Do me the thing for the sake of the price and buy the same course tried. It has actually beginning everything worked great, until I was done .. when you turn I saw that the window viewing flickered at each edge: top left, right and bottom. (Not these strips are described in the operating instructions). It looked as if the refresh rate is extremely low .. Well I now thought "what I Expecting me even at this price" I have the iPhone then leave eina half an hour, lo and behold, all gone! The screen runs smoothly! It seems as if the screen would have had to be initialized (although my Suspekt would) Well no matter completely and he goes .. !!