From the day you purchase the core synthesis product，Enjoy 1 year warranty after-sales service，But need to follow the following principles： 1. Can show the company's valid warranty card。 2. The product has not been disassembled by itself，Repair，Refit，QC mark is intact。 3. The product is used under normal conditions，Quality problem。
Quality problem，Not covered by warranty；But it can be repaired for a fee： 1. Can’t show our company’s valid warranty card。 2. Faults caused by human factors，Product damage。 3. Disassemble by yourself，Repair，Damage caused by modified products。 4. Exceeded the effective warranty period。
Sorry，Because the after-sales service process is for all regions of the world，Relative maintenance process and inspection and testing links are more，under normal circumstances，We promise that the repair parts will be completed in about 3 working days from the day of the after-sales service department.，Thank you for your understanding。If your repair parts are urgent，You can also coordinate with our after-sales maintenance service department feedback。