Warranty period: 2-5 years, lifetime maintenance.
 
·On-site service: During the warranty period, if on-site service is required, the customer shall bear the corresponding expenses for board, lodging and car.
 
·Free warranty (including labor and materials); free return to the factory for warranty during the warranty period. After the warranty period, accessories and maintenance services are guaranteed at a reasonable price. At any time, the liability due to the defects of the goods itself will not be exempted.
 
·Response time: Receive user notification to ensure 24 hours uninterrupted after-sale technical service support.
 
·Spare parts and spare parts: The necessary spare parts and spare parts have been prepared for the user before the display screen leaves the factory.
 
·Free training: free on-site equipment operation training for the purchaser’s technical personnel to ensure that the user’s personnel can be proficient in conventional use methods such as various equipment and software, as well as the judgment and resolution of minor faults.
 
·Telephone return visit: During the warranty period, the company's after-sales service department will contact the user by phone every month to understand the operation of the LED display, and find problems and solve them at any time.
 
·Software upgrade: Maintain the system continuously for life, and continuously perfect system functions and software upgrades.
 
·Provide local installation guidance services.