Did DJI finally pay the fine if he didn't pay it?

no. According to China News official website, China science and technology company DJI Innovation lost the case in the US court, and was accused of using the patent of American Deslon to manufacture and sell drones without permission. The judge directly ordered DJI to pay a fine of 279 million US dollars. As of January 3, 224, China science and technology company DJI Innovation did not pay the fine and had to withdraw from the US market.