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|---|---|---|---|---|
| CW-NAS-AT-4L.iso | V1.0 | 2025-07-24 | 20.71M | Download | 
| Explain: | ||||
| No data available! | 
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 Nationwide Warranty Service
            Nationwide Warranty Service
        Nationwide Warranty Service:We provide nationwide warranty coverage to ensure you enjoy hassle-free after-sales service
Return and Exchange Policy:
7-Day No-Questions-Asked Return Policy:Customers may apply for a no-reason return within 7 days of receiving the product。
No-reason exchange within 15 to 30 days of purchase/delivery:Within 15 to 30 days after receipt, customers may apply for a no-reason exchange if the product exhibits non-man-made defects or fails to match its description.
 Warranty Period
            Warranty Period
        Warranty Period:All products are covered by a 1-year warranty period. During this period, we will provide free repair or replacement services for any non-man-made damage
 CWWK Promise
            CWWK Promise
        Official Guarantee:All products sold and shipped directly through our official platform are eligible for official invoices issued by Changnet, along with comprehensive after-sales services, ensuring a worry-free shopping experience
Product Consistency:While we may modify product packaging, place of origin, or included accessories without prior notice, we guarantee that all items are authentic products from the original manufacturer and remain consistent with mainstream new releases in the market
 Brand-New Authentic Product with Official Invoice
            Brand-New Authentic Product with Official Invoice
        Brand-New Authentic Product:We guarantee that all products sold are brand-new and authentic, with quality assured by manufacturer warranties
Electronic Invoice:After purchase, you can request an electronic invoice directly in your account dashboard—it's fast and hassle-free!
 Pricing Policy
            Pricing Policy
        Price Synchronization:Our product prices remain synchronized with those on official flagship stores across Tmall, JD.com, Douyin, Pinduoduo, and other major platforms, ensuring fair and transparent pricing for all customers
Final price based on selling price:our purchase decision
 Extended Warranty Service
            Extended Warranty Service
        Rate Setting:The extended warranty service rates are determined based on the product's purchase price and the selected warranty duration. Please refer to the product page for detailed pricing information
Extended Warranty Inquiry:After purchasing extended warranty, you can verify the coverage period by entering your device's serial number on the [Service & Support] page of our official website
 After-Sales Service Guide
            After-Sales Service Guide
        Self-Service Repair:For self-service repairs, please visit our after-sales portal at After-Sales Service Portal
Warranty Status Inquiry:For warranty status inquiries, please dial 400 871 3598 and press 3
 Rights Statement
            Rights Statement
        Information Protection:The product information displayed on our official website (including product details, user reviews, and comments) constitutes proprietary business assets of Changwang. Any unauthorized reproduction or use is strictly prohibited
Thank you for choosing Changwang's products. Please contact us through the following channels – we'd be delighted to assist you