For Samsung Z Flip 4 F721/F721B LCD Display Touch Screen Replacement Defects AMOLED Burn Shadows Touch Screen Digitizer

For Samsung Z Flip 4 F721/F721B LCD Display Touch Screen Replacement Defects AMOLED Burn Shadows Touch Screen Digitizer(Test) ：Please test the screen before installation and take video for the whole process.You only need to connect theThe screen flex to the motherboard.(Needn't remove the components to new screen while testing).If there is any problem with the item,Please stop the process and contact us.Quality: Defective screen with black spots or burn marks, the screen is not brand newMaterial : SUPER AMOLEDOLED(AMOLED)Advantages: brightness and resolution close to the original, the quality is very good. There is no color difference.Disadvantages: The price is expensive.If you need, you can contact us to send a screen inspection video before purchasingNotice:If you find the problems while testing,don't install contact us please.Regarding product imagesRegarding receiving defective products:International distance transportation carries certain risks, and the screen is fragile. Although we are constantly optimizing the packaging, it is still unavoidable. I hope all consumers can understand. We will compensate for your losses through high-quality after-sales work.Regarding installation:Please contact customer service directly to request an installation video. We recommend non professionals to go to a repair shop for installation, especially for the first time. (It is very difficult to disassemble the screen)Regarding evaluation:We hope buyers who receive good products can give us a five-star rating. We offer gifts or discount coupons as gifts. If you receive defective products, please contact customer service directly, and we will provide the highest quality after-sales service.