Suggestion:1. Before installing the product on the mobile phone, please test the product first. If you have any questions about the product, please feel free to contact us.2. We recommend installing by professionals！Serve:1. If you have any questions about the product, please contact us in advance, we will try our best to solve the problem for you.2. If you are not satisfied after receiving the goods, there is no need to file a dispute, just contact us for help.3. We are glad that you ship in our warehouse. We will wholeheartedly provide you with high-quality products and good after-sales service. Enjoy your shopping here.