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Specification Book Ordering Instructions 【Within seven days of receiving the product, if there are any quality issues (non-human damage, non-machine defects), and there is no appearance damage, we will replace it with a new one of the same model. All products are non-returnable and cannot be exchanged for other styles or models. Shipping costs are to be paid by each party (all shipping costs are covered by the agent), with a 6-month warranty! Original parts are guaranteed to be replaced within one month.】 【Buyers please confirm receipt within 48 hours after receiving the product! Otherwise, it will be considered an automatic waiver of all after-sales services from our company!! Please do not delay due to concerns about quality issues! If there are any quality issues with the product, we will definitely provide warranty service!!If you are a middleman, please communicate any issues between you and the customer directly. Please do not use this as a reason to refuse payment. 】 1. Malfunctions caused by the following situations are not covered by the free warranty: 1、Water ingress; 2. Normal wear and tear (such as cables, batteries, etc.); 3. Failure caused by physical damage after strong vibration or extrusion: such as being dropped or crushed; display screen or camera, etc 4. Free products are not covered by the warranty; 5. Damage caused by improper use, failure to use, maintain, or care for the product according to the product's instruction manual; 6. The fragile warranty sticker on the body is blurred, torn, or altered; 7. Outside the free warranty period, we provide long-term paid maintenance services. Second, please note: 【We will ship according to the agreed date, within 72 hours after placing the order】 【After purchase, if the buyer doesn't like it because they think it doesn't look good or are not used to using it, which are non-product quality issues, returns or exchanges are not provided, and additional charges apply for replacement. Please consider carefully before purchasing to avoid unnecessary disputes! [Most product parameters come from public information on the internet and are for buyer reference only. If parameters change or are updated later, the company will not modify them, and discrepancies in parameters cannot be used as grounds for returns or exchanges.] [The company does not provide guidance on using data cables for downloading or setting up GPRS, except for non-phone-related issues! If you have any questions, feel free to leave a message, and we will respond as soon as possible.] [Product prices may change at any time; buyers are subject to the price at the time of payment. Buyers cannot claim compensation for price reductions after purchase.] [All product data is for reference only and cannot be used as professional equipment (such as medical equipment)] 【Due to high daily shipping volume, we cannot guarantee that any item will be in sufficient stock; please contact customer service before placing an order】 【All products in the store are shipped without invoices by default. If you need an invoice, a tax point will be added. Please consult customer service for the tax rate.】 3. Replacement and Warranty Period Explanation: 【Exchange: If the company is out of stock or discontinued, exchanges are not possible, only warranty is available, please understand】 【Warranty: From receipt of the machine, under normal circumstances, it can be returned within seven business days; some machines may require more time】 【During the warranty period, the buyer is responsible for the return shipping fees; otherwise, they will not be eligible for exchange or free warranty.】