How can I use 4G instead of LTE?

Open Settings and tap General -> Transfer Or Reset iPhone. Then, tap Reset -> Reset Network Settings. Enter your iPhone’s passcode, then tap Reset Network Settings once again to confirm your decision. Your iPhone will turn off, complete the reset, then turn itself back on again.23 Eyl 2021

First, swipe up on the home screen, tap on the Settings icon, and tap on the Network & Internet selection. You should then tap on the Mobile Network menu and then tap on the Advanced option. Finally, tap on the LTE selection for 4G access.

First, toggle on and off the Airplane mode . On most Android phones, you can toggle on/off the airplane mode from the Quick Settings panel. If not, you may go to Settings → Mobile Networks → Airplane mode. Turn on Airplane mode for about 30 seconds or more. Turn it off again to reconnect your network.