In the effective warranty period of the product performance failure, you can apply for product warranty service, the implementation of free warranty service must meet the following conditions:
Since the purchase of the product within the specified product warranty period normal use, non-human performance failure of the product;
√ No unauthorized demolition, no more than the official instructions to modify or install, other non-human caused failure;
√ Provide valid proof of purchase, documents and tracking number.

× Collision and burning accidents caused by artificial quality problems other than the product itself;
× Damage caused by private modification, disassembly, opening of the shell, etc. under the guidance of unofficial instructions;
× Damage caused by incorrect installation, use and operation not in accordance with the instructions;
× In the absence of official instructions, the customer repairs the damage caused by the assembly;
× Damage caused by circuit modification guided by unofficial instructions, or improper matching of battery packs and chargers;
× Damage caused by failure to operate according to the product instructions;
× Damage caused by handling in harsh environments, such as wind, rain, sand and dust;
× Damage caused by operation in complex electromagnetic environment or strong interference source environment, such as mining areas, towers, high-voltage lines, substations, etc.
× Damage caused by mutual interference with other wireless equipment, such as transmitter, signal transmission, WiFi signal interference;
× Damage caused by forced use of parts in the event of deterioration or damage;
× Damage caused by reliability and compatibility problems when used with non-ultimate technology certified third party components;
× Damage caused by insufficient discharge when the power is insufficient, or the use of batteries with defective quality;
× Signs of machine serial number, factory label and other marks torn or altered;
× After contacting Zhizhi Technology to confirm the warranty service, the corresponding item is not shipped within 7 natural days.
× Other circumstances described in the policy.

√ For products purchased in different countries, due to product differences, returns and warranty services will be different during the warranty period. Please contact customer service for details.
√ You will have to bear the shipping cost when sending the product to Extreme Technology.
√ The user should send the problem product back. After receiving the problem machine, the authorized agent or the after-sales service center will conduct fault detection on the product to determine the responsibility for the problem. If it is a quality defect of the product itself, the maximum technology is responsible for the cost of testing, materials, labor costs and Courier fees.
√ If the tested product does not meet the conditions of free repair, customers can choose to pay for repair or return.
√ If the problem of the machine is not covered by the warranty (such as man-made damage to the machine), we will charge the corresponding inspection fee, replacement parts fee, test fee, labor fee and Courier fee according to the specific problem.
√ Please note that product maintenance may result in data loss. Please back up your data first.
√ The data analysis service can be used for the insured products for a fee, and the analysis results will not affect the final treatment plan of the ultimate technology.
√ Do not return batteries that are seriously damaged, such as damaged cells, bulging or leaking; If it has been returned, our company will scrap such batteries and will not return them.
√ Due to the differences in product versions, the product does not support global warranty, and can only be guaranteed in the regional repair center designated by the technology. If you need to designate a repair center in a non-purchase area, Max Tech will handle it at your discretion based on local stock availability and will only provide paid service.
√ If the address provided by the customer is wrong, or if the recipient refuses to accept, the loss arising therefrom shall be borne by the Customer.
√ If the express cannot be delivered or is rejected and returned to Ztech, ZTECH will keep it for you, and the storage fee will be calculated from the date of return. Due to the corresponding requirements of the storage environment, the storage fee charging standard is detailed to the customer service. When the storage fee is equivalent to the residual value of the product, the maximum technology will have the right to dispose of the product. (Calculation method of residual value of product: Residual value = original selling price - maintenance cost)
√ Without the consent of the best technology to send back the product, the resulting customs duties and customs clearance and other costs must be borne by the customer.
√ If the product is flooded, it will seriously affect the product performance, and there is no maintenance value, so the technology can not provide maintenance services, will provide replacement product service, please be aware of and send back as appropriate.
√ Before the product is sent for repair, please properly handle the personalized items and decorations attached to the original product (including but not limited to product decorative stickers, UAS stickers, paint and spray paint, etc.), the maximum technology will not be responsible for the damage and loss of personalized items and decorations.
√ In order to ensure your normal rights and interests, when signing for the goods, please check whether the product is in good condition (whether there is damage caused by logistics and other reasons). If the product is abnormal, please give us feedback within 7 days from the date of receipt; Otherwise, your default product is considered to be undamaged and in good performance.