Dear Samsung try to improve your s21fe network connectivity and stability otherwise you were wiped out from market. Cheap Realme, Vivo phones are performing better than yours.
After reset format factory my Jio5g is now working but more network fluctuations. It may b bcoz of chipset Samsung please solve these error otherwise your strength will to in vein.
Try it practically u will get that.5g calling is Norte I didn't remember name but still under development phase I m in news field and I read it from a article.