"OnePlus Open Settings> Wi-Fi & networks> SIM & Network> Preferred network type> Select 2G/3G/4G/5G (automatic) Oppo Open Settings> Connection & Sharing> Tap on SIM 1 or SIM 2> Preferred network type> Select 2G/3G/4G/5G (automatic) Realme Open Settings> Connection & Sharing> Tap on SIM 1 or SIM 2> Preferred network type> Select 2G/3G/4G/5G (automatic) ©LoVE fOr eVer "