A: Generally speaking, depending on the materials used, the quality of the parts can be separated into different categories. In Resupplyplus, we have 4 grades for LCD Assembly in particular.
Grade A is with its core components(like LCD, IC chip) is 100% original, while its non-core component(like glass lens, frame) is the best original compliant materials, which are assembled together by the capable third-party factories.
Grade R is the widely accepted major compliant replacements for original parts, which keep a good balance between price and quality and has sustainable supplying chain.
Grade A is almost the same with Grade A-. The only difference lies in the more critical standards applied to the products' cosmetic inspections, by the request of branding needs of many our customers.
Grade A+ is 100% original manufactured. We get this kind of parts from the first level dealer.