The update also addresses an important issue in Samsung’s Exynos 2100 chipset used in ... for Galaxy S21, G996USQSDGXJ2 for Galaxy S21 Plus, and G998USQSDGXJ2 for Galaxy S21 Ultra.
the Galaxy S21 Ultra, and the Galaxy S21 FE, has received the One UI 6.1 update. The One UI 6.1 update for the Galaxy S21 FE US variant is arriving with build G990USQUAGXDG, while the Indian ...