This document summarizes the certified pre-owned iPhone refurbishment and quality assurance process. It details a 7 step analysis including data cleansing, a multi-mode diagnostic test checking 32 functionality points, cosmetic grading, and kitting devices in retail packaging with a 12 month warranty. The process aims to ensure devices are of the highest quality and fully functional through a rigorous 30 point technical inspection and quality control checks covering features like the battery, camera, WiFi and call functionality.