Here you find all the latest Samsung firmwares for the Galaxy S21 Ultra 5G SM-G998B, if you want to flash your device with the newest Samsung software. Before downloading, make sure your device has the exact model code SM-G998B. You can download the most recent Galaxy S21 Ultra 5G firmwares for free.Please use Samsung KIES - Use odinrom.com firmware page only if you are 100% sure what you are doing!samdown.com do not take any responsibilty if you brick or damage your phone using files that can be found on this site. It's all on your own risk. All our firmwares are official Samsung firmwares! Remember by using this page everything is on your own RISK. All information is from Samsung KIES.