1. Check the Glass without any scrach.
2. Check the Frame is fixed or not.
3. Check the 3D touch and Touch sensitive.
4. Check the White and Black make sure without dead pixel and the bright dot.
5. LCD assembly get high alignment. Test the edge smooth.
Our company Provide the LCD for iPhone And Samsung. Welcome to contact me get the factory price.
Low return rate, Factory Price, and always keep update the quality is our target.