I cannot text or make calls on my S20 plus 5g. Phone just stopped working. FB Messenger works on Wi-Fi. Somehow I get texts from companies but no individuals. I have changed Sim cards twice at T-mobile, reset Network settings and I even did a full reset on the phone. No help. I did install Google Carrier Services, rebooted and it worked for a day. I rebooted and it quit working. Haven't been able to recover any kind of service since.