1、Applicable Model: The screen assembly is compatible for Redmi 4Pro 4Prime mobile phones, please confirm the model number before purchasing. 2、Scope of Application: Used to repair faulty screens, cure replace cracked, damaged, dead pixels, touch not working, touch response issues, display issues, wrong color issues, non functional screens, etc. 3、Quality Assurance: All products have passed strict QC double test before shipment, intact. Make sure there are no scratches, dead spaces, dot pixels or lines on the screen. 4、Use Caution: Make sure you know how to install it before buying it, trying to install it and then returning the screen is not acceptable. Installation instructions are not included, and it is not recommended for inexperienced persons to install. 5、Test Before Installing: Please test it before installing it on your phone. Make sure all cables are well connected. The cable is fragile, do not push it hard, and be careful when handling it.