Galaxy S21 for the first time in the new year has been spotted with the upcoming One UI 6.1 firmware. The software build server has discovered with new build number for this three-year-old flagship device. The new spotted or early build number is G998BXXU9GXA5 and it is assigned for Galaxy S21 Ultra. The same beta testing firmware has been there for Galaxy S21 & Galaxy S21 Plus models.
The Galaxy S24 series is the first to wear new software along with some AI features. There is a possibility, Samsung could release this version for the Galaxy S21 series in March. In a previous build, the build server revealed aggressive development of Galaxy S23 Ultra, which is the next phone to get the One UI 6.1 update. The Galaxy A54 & Galaxy A34 are also in line to upgrade in April.