For the first three (3) loops, units should be fully functional after the test, no noticeable cosmetic issues are allowed and units must pass signaling and parametric testing. For USB connector, passing 3 loops without functional issue is a basic/initial requirement, however, passing 5 loops without USB functional issue is expected to ensure a low field return rate. We can continuously collect test data and establish solid base line for changing the P/F criteria to loop5 in the future.