We consider the particularity of LCD and touch screen， so the LCD screen，touch screen， can provide customers with bare metal test， in the protection of membrane without exposing， fragile label complete warranty. Screen without the physical and human injury. Can be exchanged back， so please test is installed， if the display problem of freight AA (because small please understand)， refund please show proof screen whether there is fault，otherwise the buyer should bear the freight (we don't receive payment)