A practical used iPhone inspection checklist

A working screen is only one part of a used-phone inspection. Take time to check ownership, setup, condition and return terms as well as the functions you use.

Updated November 8, 2026

Agree on the basics before you meet

Ask for the exact model, storage, known repairs, included accessories and return terms. Arrange enough time for an inspection. Do not publish serial numbers, IMEI numbers or the seller’s personal information.

Check ownership and setup

The seller should remove their account and turn off Activation Lock. Do not buy a phone that remains locked to a previous owner. Set-up screens, carrier restrictions and organization management can affect whether you can use it.

Check Settings for the model and storage. Where available, review Parts and Service History and Battery Health. Availability and detail vary by model and iOS version; missing history is not a guarantee of untouched parts.

Inspect the physical phone

Look for cracks, separated edges, bent areas, lens damage and port problems. Never submerge the phone to test water resistance. A clean exterior does not rule out past liquid damage or internal repair.

Try the functions you will rely on

Check display colors and touch, front and rear photos, focus, video sound, speaker and earpiece. Try charging with a known-working accessory. Test buttons, vibration, Wi-Fi and Bluetooth with compatible accessories.

With the seller’s agreement, test your carrier connection and biometric setup after account removal. Checkuno can guide functional observations, but does not certify ownership, authenticity, battery lifespan, waterproofing or overall condition.

Make the result useful

Record observed issues and what could not be checked. A short inspection cannot rule out intermittent faults. If an important check is blocked, pause the purchase or agree on an appropriate return option rather than assuming it passed.