The Galaxy S4 my Sohnens had sometime do not want to show the need except a sporadic looming green display. The glass was still but on closer inspection you could see under the glass fissures. As a new device of this class are still about 300 costs I decided to swap the display's taking itself before. This costs about one-third and a little courage. With the help of this new display, magnifying glasses, special tools, and one of the many guides on the Internet, I managed easily to repair the phone. The display fits perfectly to the mobile phone, everything is so drafted as in the defective part. Some boards are glued - this adhesive is the new diplay already there. Similarly, the heat-conducting for the CPU on the board. All cables and connectors fit perfectly. After repairing the card and the battery clean - and it does again what it should. Because everything was perfect 5 star.