INDUSTRIAL QUALITY ASSURANCE

80-Point PhoneCheckâ„¢ Diagnostic SOP

Comprehensive Engineering Standard Operating Procedure • Ascot Refurbishment Hub

Phase 1 Inbound Intake & Security Audit
  • IMEI & GSMA Blacklist Verification: Checking against National Mobile Property Register (CheckMEND) and GSMA database to verify zero lost/stolen records.
  • iCloud / Knox Status Audit: Factory activation lock, MDM (Mobile Device Management) profile and Knox flag (0x0) strictly verified removed.
  • Blancco Certified Data Erasure: Military-grade data sanitisation compliant with ISO 27001, HMG Infosec Standard 5, and DoD 5220.22-M.
Phase 2 80-Point PhoneCheck Diagnostic Array
  • Digitizer & Display Audit: Multitouch response, Dead pixel scanning, TrueTone functionality, OEM display authenticity verification.
  • RF Wireless Diagnostics: 5G/4G/LTE cellular bands, Wi-Fi 6E/7 dual-stream latency, Bluetooth 5.3 range, GPS signal lock, NFC Apple/Google Pay.
  • Audio & Microphones: Ear speaker, bottom loudspeaker, noise-cancellation multi-mic frequency response curve testing.
Phase 3 Battery & Cell Conditioning
  • Capacity Benchmark: Minimum 88% certified capacity requirement (typical Grade A+ units retain 94%~98%+ original capacity).
  • Charge Cycle & Resistance: Internal impedance test, MagSafe/Qi wireless induction coil charging efficiency, thermal throttling check.
  • No Non-Genuine Warnings: Zero battery warning popups; OEM battery health reporting intact in iOS/Android settings.
Phase 4 Packaging & Royal Mail Dispatch
  • Grade A+ Cosmetic Grading: Microscopic bezel, lens, and housing inspection under 5000K daylight inspection lamps.
  • Anti-Static Protective Film: Electrostatic discharge (ESD) protective wrapping applied in ISO Class 7 cleanroom bench.
  • Cushioned Air-Column Packaging: High-density impact protection sleeve + Royal Mail Tracked 24 barcode thermal label.