THIS METHOD ONLY WORKS ON KOREAN MODELS OF S24 SERIES SINCE THE MENU IS ONLY ACCESSIBLE THEREConfirmed working on:Galaxy S24 Ultra (SM-S901N)How to do it:Go to Official Phone dialer and enter "319712358", just the numbers.It will lead you to here: Passwords by CSCSKC/KOO : 996412KTC : 774632 LUC: 0821Enter Network Setting > SIM 1/SIM 2 > 1. Network Mode > Press three lines and choose Band Selection...Read more