Instructions not supplied as part of the auction.We are not responsible for any damage caused by installation of this accessory.We suggest you are familiar or seek a professional for dismantling your device, or otherwise you may damage or break your device.We will reply any request within 24 hours during business working time.We will do our best to your satisfaction.Any problems,pls contact us before leave negative  feedback or claim A-TO-Z.We would love to resolve  the issue for you!