Caution: please seek help from professionals if you are not sure. When you receive the item, please first mount the flex cables from this LCD assembly on the corresponding connectors on the logic board to test the display and digitizer touch. If everything is fine, then start putting on adhesives and full fledged installation. The seller is not responsible for any damages occurred to logic board during the installation process. Any damages occurred to the LCD assembly that include, but not limited to, broken/cracked flex cables/connectors, broken/cracked LCD, broken backlight, broken/cracked screen, as a result of careless mistakes or unprofessional practices, will automatically forfeit the warranty and make your purchase illegible for any return and refund.