Confirm the exact Galaxy model and storage
Match the visible device information to the catalogued Samsung Galaxy S23 and advertised 128 GB, 256 GB. Regional model codes and storage differences can affect value and relevance.
What matters for this model
A convincing unit matches the catalogued model and advertised storage, completes available diagnostics, passes AMOLED, touch, camera, biometric and connection checks, and transfers without Google, Samsung or Factory Reset Protection surprises.
Run the checks on the actual phone and record anything that cannot be completed. A clean exterior or successful diagnostic alone is not enough to establish the full technical condition.
Checks to complete before payment
Run Samsung Members diagnostics
Complete every available diagnostic in Samsung Members and record skipped or unavailable items. Use the result as one evidence layer alongside hands-on checks.
Assess battery behaviour and charging
Review available battery information, test stable USB-C charging and observe short practical use. Heat, rapid drain or interrupted charging should remain visible.
Inspect AMOLED, touch and biometrics
Use uniform light, dark and grey backgrounds, cover the complete touch area and repeat fingerprint and face unlock where configured.
Test cameras, audio and connectivity
Use all cameras, focus, video, microphones, speakers, Wi-Fi, Bluetooth, mobile network and NFC where possible. Note every route that cannot be tested.
Remove Google and Samsung accounts
Finish with both account types removed through normal settings, then confirm a clean reset path so Factory Reset Protection does not block the next owner.