Buckle the battery and try again. If it still doesn't work, you can only get it after sale or BBK counter for repair. X2 is a machine with larger screen, intelligent ranging and intimate reminder. Product Introduction Little Genius brand focuses on the children's market in China, innovatively applies excellent children's educational concepts and modern technology, and provides educational and entertaining products that meet the needs of modern children, so that children can explore and learn while having fun and inspire their intelligence.