Compatible models :For Samsung Galaxy S21 Ultra 5G G998 Display Touch Screen Digitizer Quality: Super AMOLED New Original, No Defects Display Material: AMOLED Type: LCD & Touch Screen Digitizer A few tips for intallation 1. When you receive the screen, please check if it is in good condition. If the item is damaged on arrival, please let us know by sending us a message. 2. Please carefully remove your cracked screen and connect the new screen to the mainboard, then turn on your phone to see if it works before installation. A hair drier will help you to remove your cracked screen. 3. The cable on the screen is very fragile, do not bend it hard. 4. There're lots of instruction videos on internet, you can watch some videos to learn how to fix it or find a professional technician to help with you.