Every device and component batch processed by E-Trading Frontiers (HK) passes an automated 60+ point diagnostic inspection, standardized cosmetic grading, and serialized manifest verification prior to international dispatch.
We test devices and components systematically to eliminate operational failure, minimize RMA rates, and safeguard your commercial resale margins.
Serial/IMEI scan, blacklist status verification, liquid damage indicator check, and model authenticity confirmation.
Automated software-assisted diagnostic testing covering board-level sensors, gyroscope, accelerometer, and processors.
Standardized illumination inspection identifying micro-scratches, scuffs, frame dings, or discoloration across body panels.
Charge cycle count verification, discharge curve stability check, temperature load review, and minimum 85%+ capacity confirmation.
Zero dead pixels, back-light uniformity, 3D touch precision, TrueTone verification, and burn-in screening on OLED screens.
Primary, wide-angle, telephoto, and front cameras tested for autofocus speed, optical image stabilization, and sensor clarity.
RF band analysis, cellular carrier unlock verification, dual-band Wi-Fi throughput, Bluetooth pairing, and NFC testing.
Stereo speakers, ear speaker decibel testing, noise-canceling microphone checks, and distortion-free playback validation.
USB-C/Lightning physical port stability, PD fast-charging negotiation, wireless Qi charging efficiency, and current draw.
Independent multi-tester verification for standalone LCD screens, batteries, flex cables, and internal camera replacements.
Post-repair micro-soldering inspection, water-resistance seal application, alignment check, and cosmetic ultrasonic cleaning.
Final diagnostic pass sign-off, antistatic wrap protection, individual bubble sleeves, and heavy-duty master carton packing.
Our operational center in the Winfield Industrial Building features dedicated diagnostic benches and calibrated lightboxes. By removing subjective guesswork from device evaluations, we ensure every manifest received by your warehouse matches expectations.
Grading directly drives wholesale value and resale profit. Our documented criteria ensure full transparency across four distinct cosmetic condition tiers.
Side-by-side technical evaluation across all wholesale mobile device tiers.
| Evaluation Parameter | Grade A+ (Pristine) | Grade A (Excellent) | Grade B (Good) | Grade C (Fair) |
|---|---|---|---|---|
| Cosmetic Appearance | Flawless / Like-New | Near-Mint Condition | Moderate Everyday Wear | Heavy Signs of Wear |
| Display & Glass | 0 scratches; flawless screen | Faint micro-scratches barely visible | Superficial scratches; 0 cracks | Noticeable scratches; 0 cracks |
| Housing & Bezel | Pristine; 0 marks or nicks | Very minor surface pin-marks | Light scuffing on bezels/corners | Visible nicks, dings or rub-off |
| Battery Health Benchmark | 85% – 100% capacity | 85%+ verified health | 80%+ verified health | 75% – 80% capacity |
| Hardware Functionality | 100% Tested & Approved | 100% Tested & Approved | 100% Tested & Approved | 100% Tested & Approved |
| Accessories & Cable | Upon request (OEM or MFi) | Upon request (OEM or MFi) | Bulk device only / optional pack | Bulk device only |
| Protective Packaging | Antistatic sleeve / Retail box | Antistatic bubble sleeve | Antistatic bubble sleeve | Bulk antistatic bubble pack |
| Warranty Framework | Standard Functional Warranty | Standard Functional Warranty | Standard Functional Warranty | Standard Functional Warranty |
| Exclusions / Excluded | Accidental drops / water damage | Accidental drops / water damage | Accidental drops / water damage | Accidental drops / water damage |
Contact our Hong Kong commercial sales desk for current inventory manifests categorized by these exact standards.