: Prioritize items "Shipped and Sold by Amazon" or established third-party sellers with years of positive feedback.
: These are typically customer returns or slightly damaged items sold "as-is" with a 30-day return policy. buying a used laptop on amazon
: Test every individual key, all USB/charging ports, the webcam, and look for "dead pixels" on the screen. : Prioritize items "Shipped and Sold by Amazon"