There are four kinds of grades for DBX Store cell phone repair parts:
Grade S+ (Brand New):
Grade S+ parts are those with 100% original core components like LCD, IC chip, flex, while non-core components like frames can be original or original compliant (Up to the main market trend), which are assembled by the original factories.
Grade S parts are those with 100% original core components like LCD, IC chip, while non-core components like flex, glass lens, and frame made of best original compliant material, which is assembled by the capable third-party factories.
Grade AAA (China-made)
Grade AAA is almost the same as Grade S. The Grade AAA LCD materials for the iPhone series are from several manufacturers, such as AUO, CSOT, LG, LT (Long Teng), Sharp, and TM (Tian Ma). Customers can choose them in the Grade column. The difference lies in brightness and contrast. A good option for customers who are not so critical with cosmetic aspects.
Grade A (China-made)
Grade A stands for China-made quality, they are widely accepted compliant replacements for original parts, which can keep a good balance between price and quality.