Here is the translation of the provided German text into English: Instructions for receiving instructions and after-sales service: 1. Each individual digitizer assembly that we have shipped has been strictly inspected in good condition before shipment. Therefore, please check carefully upon receipt. If there are any damages, please contact us within 3 days. 2. Please test the item if it is in good condition before installation or sales, we will support the return if this is a defective product. 3. For these digitizer assemblies, components have been installed and cause damage to appearance or labels, they are outside the warranty scope, and their return is not supported. Please understand. 4. For these digitizer assemblies, more than a year has been sold, we also do not support the return.