1. Our shop will sell each product before delivery, and will test to confirm delivery after the product is 100% working normally. 2. After receiving the product, please take a photo of the packaging before proceeding to the entire packaging process. If the product is damaged, please do not raise any disputes. Please contact us, we will replace or refund according to the actual situation. 3. We are not responsible for any loss caused by improper operation during the repair and replacement of the screen.