Diagnostics
Certified devices, verified before they ship
Every iPhone we distribute is tested and graded through Phonecheck — the industry-standard platform for device diagnostics, certification, and carrier background checks.
- IMEI verified on every unit
- 80+ point diagnostics
- NIST 800-88 certified erasure
Why diagnostics matter in wholesale
When you buy by the pallet, the last thing you need is a surprise at intake. That's why GS Wireless runs each device through Phonecheck before it leaves our floor — a full inspection that documents battery health, component condition, lock status, and device history in a signed report. You know exactly what's in the box before you order it.
80+ point diagnostics
Battery capacity, display, cameras, sensors, and buttons — every functional check is captured in seconds and logged against the device's IMEI.
IMEI and carrier history
Full IMEI history, carrier-lock status, and blacklist screening on every unit, so nothing arrives activation-locked or carrier-financed.
Repair and parts history
Original or replaced — display, battery, and camera modules are documented so grading is transparent, not guesswork.
Certified data erasure
Devices are wiped to NIST 800-88 standards with audit-grade erasure and a signed certificate of erasure for full chain of custody.
What your team receives
Each Phonecheck-certified device ships with a Device History Report — a signed, immutable record that the unit is graded, carrier-cleared, and blacklist-clean. It's the credential most major resale marketplaces recognize, and it travels with your inventory.
- Grade and cosmetic condition documented per unit
- Battery health and repair history disclosed up front
- IMEI, lock, and blacklist status verified and logged
- Signed Device History Report for audit and resale
Our diagnostics partner
Powered by Phonecheck
GS Wireless partners with Phonecheck — the platform trusted to process the world's used devices. Diagnostics, certification, and audit-grade erasure, built for buyback programs, refurbishers, and wholesale distributors like us. Every device that leaves our warehouse carries the credential marketplaces recognize.
Visit phonecheck.comSample Device History Report
iPhone 14 Pro 256GB · Space Black
IMEI F2LXK4N8Q1GH · Grade A · iOS 17.2
- Display — no defects
- Battery — 96% capacity
- Cameras — 3 of 3 pass
- Sensors — 12 of 12 pass
- IMEI history — clean
- Blacklist — pass
- Activation lock — off
DHR · NIST 800-88 · Signed
1B+
Device checks run through Phonecheck
80+
Point diagnostics on every unit
NIST 800-88
Erasure and sanitization standard
ADISA
Product claims tested erasure
Ready to stock certified inventory?
Tell us the models and quantities you need. We'll send volume pricing on Phonecheck-verified iPhones and accessories.