Installation very easy following the pattern of the record despite the small English explanations in the drawings. In fact, here's what to do: - This glass is supplied with a cleaning cloth to clean the phone, then move the blue adhesive film to remove dust likely to be remaining on the screen such. - The glass must then position the two sticks stickers for easy installation of the glass, a top and one at the bottom of the glass and in order not to be forced to put their fingers on the glass and by facilitating placement. - Remove the film protecting the glass that will be in contact with the phone and gently lay the glass on her such and it's over. The glass adheres directly without air bubbles for my for my part. If however there remained an air bubble, the diagram says it takes just press gently with his fingers on the glass to remove the air bubble. I recommend this product without hesitation and delivery was faster than the deadline. bravo.