For Mate 20 Front Screen Outer Glass Lens with OCA Optically Clear Adhesive Replacement front screen outer glass lens with OCA optically clear adhesive for Mate 20. Replace your broken or damaged front glass with a new one to restore your device's appearance. Designed to fit and function properly with the Mate 20. Each unit is inspected and tested before shipment to ensure quality. Professional installation is highly recommended. We are not responsible for any issues arising after installation. Before Installation: Test the screen before installation. Do not remove any protective films or labels during testing. Be aware of static electricity. Always ground yourself using an ESD (electrostatic discharge) strap before handling internal components to prevent damage. Wear eye protection and handle glass carefully to avoid injury from sharp edges. Screen replacements are delicate. Test functionality before final installation. Perform a simulated test by connecting the motherboard, LCD, and new screen, then power on the device. If the screen functions correctly, proceed with full installation. If the screen does not display properly, contact the seller immediately. Do not force installation if the screen is not working. We are not responsible for units installed without proper testing. Avoid excessive bending of the LCD cable. Bending beyond 90 degrees may result in display issues such as a black screen.