(1) Improper installation may cause invisible damage on screens, like vertical green lines, fringes, ghost image, so we highly recommend you to get it repaired by a professional technician. All the screens have passed through a series strict tests before shipping out and have been well-packed. (2) No instructions, there're lots of instruction videos on YouTube, you can check them out. (3) Please send us a picture if you find any package damaged. (4) Please contact us if you have any questions, we will reply to you within 12 hrs. NOTE: 1. 100% New Tested 2.Always provide customers with high-quality products and customer service 3. Faster logistics and shipping methods