How to Certify Used Devices for Resale

This guide explains how to use UnitCert to certify used laptops and Chromebooks for resale, increasing buyer confidence and resale value. Certified diagnostic reports give buyers proof that a device has been tested and graded by an independent tool.

Certification Process

• Open UnitCert and select the device type
• Run the complete hardware diagnostic (keyboard, trackpad, screen, camera, microphone, speakers, and network)
• Review your certified report with an overall grade
• Add device details like brand, model, and serial number
• Share the report link in your product listing

Understanding Grades

• Grade A — All tests pass; device in excellent condition
• Grade B — Mostly passing results
• Grade C — One failed test
• Grade F — Multiple failures

Batch Testing for Volume Sellers

For resellers processing multiple devices, UnitCert Pro includes batch testing mode. Create a batch, test all devices, and export results as CSV for your inventory system. See pricing plans for details.

Buyers can independently verify reports using the UC- verification code. Devices with Grade A reports consistently sell for higher prices and experience fewer returns.