hello everyone, I need help please. 5g is note working on my note 20 ultra. I went to tmobile they checked all the settings and everything was fine. but the 5g still not working on my phone. I hope if someone could help me to fix this issue. Thank you so much.
Are you using a new sim card or an older one from a previous device? If not, you would need a new sim card for better 5G service. That's according to T-Mobile themselves.