Device Certification
Phonecheck Certification
When a used device changes hands, the question is always the same: does it actually work — and can the buyer trust the answer?
A Phonecheck Certification is independent, third-party proof. Every certified device has passed an automated 80-point diagnostic covering hardware, locks, and device history — the same objective test, on every device, every time.
The result is the Phonecheck Device History Report: a per-device record of diagnostics, erasure, lock status, and certification history that buyers, auction platforms, and the major resale marketplaces recognize.
For sellers, certification lifts resale value and cuts returns. For buyers, it takes the guesswork out of a used-device purchase.

Every certification generates a report that lifts resale value, builds buyer confidence, and reduces returns.

Every Phonecheck Certification verifies
- Actual make, model, memory, and OS version — read from the device, not the listing
- Full hardware functionality
- Apple ID, Google FRP, and MDM locks
- Lost, stolen, or financed status
- OEM parts authentication, battery health, and more
Test suites can be customized to your operation — reducing labor and training costs, cutting human error, and increasing throughput.
Device coverage
- iPhone, iPad, and Android phones and tablets — with Mac, Chromebook, Windows, Apple Watch, Samsung watches, and AirPods covered across the platform
The full comprehensive test (about 2 minutes) includes
- Wi-Fi, Bluetooth, and GPS
- Charge port and battery
- Front and back cameras, including flash
- Video recording
- Ear speaker, loudspeaker, microphones, and headset
- Digitizer and LCD
- Memory and SD card slot
- Proximity sensor and accelerometer
- Live test call
- iOS: fingerprint sensor and iCloud status
