If you have broken glass, non-functional touch or faulty display, this is the right product you had been looking for. For us, customer satisfaction is of extreme importance. So, when you buy with us, Once you receive the order, just get it tested from mechanic (By connecting Connector to Motherboard of your phone). Test touch, display, buttons etc and if all ok, go ahead with installation. If any issues found during testing, click 1-2 images and contact us immediately. Based on genuinity of evidence provided, replacement would be provided to you.