Receiving after-sales service instructions and announcements: 1. Each set of digitizer we send has been strictly verified to be in good condition before shipment, so please be sure to check carefully after receiving it. If there is any damage, please contact us within 3 days. 2. Please test the item if it is in good condition before installing or selling, we support returning it if it is a defective product before that. 3. For those digitizer sets that have been installed and caused damage to the appearance or labels, they are outside the scope of the warranty, and returns are not supported, please be kindly understood. 4. For those digitizer sets that have been sold for more than a year, we also do not support returns.