EVS Record Verification
Engineering Verification System · record AYU-EVS-PHO-4470
Integrity verified
The record's contents match the keyed cryptographic seal (SHA-256 hash and signature) captured when the assessment was submitted. It has not been altered since.
SHA-256: e23ffe882ee3eb738a54ff953d89ffe73911e345ee94641858065d9e80b7d2ab
You are viewing version 1 of this record. A newer assessment exists: AYU-EVS-PHO-4470-v2. Previous versions remain permanently preserved for audit and buyer trust.
Designation
Verified Pass
Assessment Date
2026-07-25
Category
Phones
Storage
256GB
Colour
Space Grey
Technical Confidence
90/100
Product Risk
0/100
Why these scores?
- Measured evidence recorded on 0 of 12 completed checks
- All mandatory checks completed and passed
Technical Confidence starts at 100 and loses points for failed, incomplete or thinly-evidenced checks. Product Risk starts at 0 and rises with the same signals, weighted toward safety-critical checks like battery, data wipe and provenance. Sustainability Confidence is scored from sustainability-scope checks only. How scoring works
- Pass
Battery Health
Health percentage and cycle count from diagnostic software
Engineer note: Health percentage: 87%. Cycle count: 342. Battery replaced previously: No
- Pass
Charging Circuit
Voltage and current measured with USB power meter
Engineer note: Voltage: 5.1V. Current: 2.4A. Charging mode: Fast
- Pass
Display
Dead pixels, touch response, screen condition
Engineer note: No dead pixels found. Touch response: Full. No screen burn-in. No physical screen damage.
- Pass
Audio
Speaker and microphone functionality where applicable
Engineer note: Speaker and microphone both tested, clear output, no distortion or dropouts.
- Pass
Wi-Fi
Connection on 2.4GHz and 5GHz bands
Engineer note: Connected on both 2.4GHz and 5GHz. Stable throughout testing.
- Pass
Provenance
IMEI or serial verified against stolen device register. NSYS Diagnostics certificate for phones.
Engineer note: IMEI checked against stolen/lost register via NSYS Diagnostics. Clean result, no activation lock
- Pass
Data Wipe
Factory reset confirmed. No account locks. No prior user data.
Engineer note: Factory reset confirmed. No residual data, accounts, or activation lock found.
- Pass
Physical Safety
Casing, ports, buttons, liquid damage indicators, thermal behaviour
Engineer note: Casing, ports, and buttons inspected. No cracks or damage. No liquid indicator triggered
- Pass
Cellular SIM Test
Confirms SIM detection, network registration, and cellular call or data functionality where applicable.
Engineer note: SIM detected on insertion. Registered to network within 4 seconds. Test call and data session both completed successfully.
- Pass
Front camera
Checks image capture, focus, exposure, and visible defects on the front-facing camera.
Engineer note: Image capture, focus, and exposure normal. No visible defects.
- Pass
Rear camera
Checks image capture, focus, exposure, flash behaviour, and visible defects on the rear camera.
Engineer note: Both lenses tested, focus and exposure normal. No visible defects.
- Pass
Bluetooth
Confirms pairing, connection stability, and basic audio or device communication.
Engineer note: Paired successfully. Audio streamed without drops
Version history
- AYU-EVS-PHO-4470-v2v2 · 2026-07-25
- AYU-EVS-PHO-4470v1 · 2026-07-25
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