Disable Allow 5G service, or select Network mode and pick one that excludes 5G. You might turn off 5G if it's not available where you are or if using it drains your battery. If you want to use 5G but ...
Even if you have bought a new smartphone, many times 5G network does not work on it. Those who already have a 5G phone also face this problem. If only 4G network is continuously coming on your mobile, ...