Hello! I understand your concern about your Talk and Text SIM card losing its 5G/4G signal suddenly while you were using data and on a call. It's good to know that you've already tried some troubleshooting steps like rebooting your phone, reinserting the SIM card, and toggling airplane mode.
If you can still make calls and send texts, it's less likely that your SIM card is blocked. It seems like the issue is more related to the network signal display on your phone. Here are a few additional steps you can take to try and resolve the issue:
1. Check Network Mode Settings: Make sure your phone is set to the correct network mode (4G/5G) in the network settings. Sometimes, it might switch to a lower mode automatically based on network conditions.
2. Update Network Settings: Go to your phone's settings and look for the option to reset network settings. This will refresh your connection to the network.
3. Check for Network Outages: There might be a temporary network issue in your area causing the signal display problem. You can check with TNT customer service or their website for any reported outages.
4. Contact Customer Support: If the issue persists, it's best to reach out to TNT customer support for further assistance. They can check your account status and provide more specific troubleshooting steps.
If none of these steps work, it's recommended to contact TNT support for personalized help with your SIM card signal display issue. Let me know if you need further assistance or if you have any other questions!
PH