QC for electronics goes beyond AQL sampling — component substitution, counterfeit parts, and firmware integrity require engineering-level review. Standard pre-shipment inspection catches scratched housings, incorrect carton labels, and missing accessories. It does not catch the IC swap the fact...
Source: [Dev.to](https://dev.to/china-sourcing-agents/electronics-quality-control-in-china-an-engineers-approach-2jb)