https://us.community.samsung.com/t5/Galaxy-S22/5G-standalone-constant-disconnects/m-p/2671511#M66145 inserting a T-mobile sim or e-sim will unlock the Samsung dialer code *#2263#, the sim need not be activated. Samsung disables the menu by default but certain sims will unlock it. Using dual sim and installing the TMO sim first will allow band selection on both sims, even if the other (active) sim doesn't support it Mon, 25 Sep 2023 16:59:37 GMT ThymeFlowsOverStones 2023-09-25T16:59:37Z