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UGP v1.0 is a public comment draft. Comments close November 23, 2026. The A–D defect counts are provisional.Public comment draft · until November 23, 2026Comment on this draftComment →
UGPUniversal Grading Protocol
Profiles

Phone

PDF

The UGP Phone profile (PHN), complete in v1.0: surface zones, key and secondary functions, display faults, tracked parts, kit, battery and photo set.

The Phone profile is complete in v1.0. Its class code in a core code is PHN.

Surface zones

AAAAABCfrontback
Figure 1 · Phone surface zones (front · back)AADisplay + camera lensesAFront housingBBack, sides, buttonsCConnectors
ZoneCovers
AAThe display and every camera lens cover
AThe front surface excluding the display, plus the front sensor and fingerprint areas
BBack, sides, buttons, SIM tray, logos, ports area, mesh and visible screws
CConnectors and contacts

The tolerance table gives the most each zone allows per grade.

Functions

Key functions, where a failure is FK: powers on and off; the display shows an image; touch; SIM detected (cellular models); calls with a working earpiece and microphone; charges.

Secondary functions, where a failure is FM or FJ: speakers; every camera and the flash; Face ID, Touch ID or fingerprint; buttons and switches; proximity, light and motion sensors; vibration; Wi-Fi, Bluetooth, GPS and NFC; wireless charging and the headset jack where fitted.

Any fault, key or not, means no grade. §7.4

Display faults

FaultCodeSeverity
1–3 dead pixelsDSP-01minor
More than 3 dead pixels, or a dead lineDSP-02major
Burn-inDSP-03major

Annex A

Parts, kit and battery

  • Tracked parts: battery, display, rear camera(s), front camera, logic board. §10.2
  • Kit components: box, charging cable, documentation and SIM tool where originally supplied, plus anything else the manufacturer shipped. §10.4
  • Battery: the operating system's health reading or a diagnostic tool reading (measured), or a declaration (declared). §8

Photo set for V1 evidence

Front (screen off, then screen on white); back; each side; top and bottom; the display at 45°; a close-up of every defect at S3 or above; the IMEI screen. Photos are taken on a neutral background under protocol lighting, with no seller labels and with EXIF and location data removed. §14.2