The product would be worth 4 stars if it had not pressed the screen of my score 3 out of the socket. The battery extends increas ment more. Finally, it has pressed the Bilschirm three of 4 pages out of the socket. Unfortunately I did not immediately realize that it is the battery. I wanted a guarantee exchange for my grade 3 who pays me now the damage? Battery and Smartphon are only 6 months old.