IMAX OLED

I. Three Quality Grades of Samsung Original Screens

Samsung original screens are categorized into the following grades based on source, condition, and performance, with price differences of 30%-50%‌13:

1. ‌Grade A (Refurbished Original Screen)‌
   • ‌Source‌: Disassembled from Samsung-certified refurbished or unactivated new devices‌23.
   • ‌Features‌:
     • Retains the original screen assembly (including factory-installed brackets, cables, and adhesive)‌3.
     • Display parameters (color gamut, brightness, refresh rate) match new devices‌57.
     • Touch sensitivity and oleophobic coating wear are near-new‌7.
   • ‌Use Case‌: Ideal for premium users seeking flawless performance; highest price‌34.
2. ‌Grade B (Official After-Sales Screen)‌
   • ‌Source‌: Distributed through Samsung’s official after-sales channels‌46.
   • ‌Features‌:
     • Matches Grade A in display quality but may lack brackets or cables‌6.
     • Minor aging possible (e.g., 5%-10% brightness reduction)‌6.
     • Requires professional installation; 100% compatibility‌46.
   • ‌Use Case‌: Budget-conscious users prioritizing official warranties‌6.
3. ‌Grade C (Non-Official Surplus Screen)‌
   • ‌Source‌: Overstock from factories or non-certified recycled units‌48.
   • ‌Features‌:
     • Meets basic specifications but may have scratches, localized aging, or assembly marks‌8.
     • Lacks original anti-counterfeit labels or batch codes‌8.
     • Low cost but higher risk of defects‌8.
   • ‌Use Case‌: Backup devices or short-term use‌8.

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II. Four Key Criteria to Evaluate Screen Quality

1. ‌Physical Inspection‌
   • ‌Brackets/Adhesive‌: Grade A screens include original components; others may use third-party parts‌23.
   • ‌Anti-Counterfeit Labels‌: Verify unique serial numbers via Samsung’s official website‌68.
2. ‌Display Performance‌
   • ‌Color Uniformity‌: Check for patches or unevenness using solid-color backgrounds (e.g., gray)‌57.
   • ‌Touch Responsiveness‌: Test edge sensitivity (e.g., drawing uninterrupted lines)‌48.
3. ‌Accessory Completeness‌
   • ‌Packaging‌: Grade A/B screens come in anti-static bags with batch labels; Grade C uses basic packaging‌36.
   • ‌Cable Connectors‌: Original cables have uniform gold plating; third-party versions may show oxidation‌28.
4. ‌Technical Verification‌
   • ‌Software Check‌: Enter Samsung’s engineering mode (#0#) to confirm screen model‌5.
   • ‌Brightness Test‌: Grade A screens achieve ≥1200 nits; aged screens may drop below 1000 nits‌57.

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III. Price Differences Explained

Grade	Price Range (USD)	Key Factors
A	110−110−160	Scarcity + original components‌23
B	80−80−120	After-sales surplus + minor aging‌46
C	40−40−70	Non-official channels + defect risks‌8

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IV. Purchase Recommendations: Avoid Pitfalls

1. ‌Prioritize labeled refurbished screens‌ and request serial number verification‌26.
2. ‌Beware of “too cheap” offers‌—prices 30% below market often indicate counterfeit parts‌18.
3. ‌Record unboxing videos‌ to validate screen condition immediately‌8.

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By understanding these standards, customers can make informed decisions when purchasing Samsung original screens‌24.