Text messages frozen
Why are my text messages freezing on new iPhone 14 Pro after doing the same thing on iPhone 11 Pro?
iPhone 14 Pro, iOS 16
1.
Try this -> If an app won’t respond or seems frozen, you can close it, then open it again, see If an app on your iPhone or iPad stops responding, closes unexpectedly or won’t open
2.
If it doesn't help, remove and reinsert the SIM card.
If it doesn't help contact your carrier, maybe the SIM card is damaged, ask for a replaced (new) card. Normally it is free.
Ask also to check if the SIM tray is bent, as even a tiny misalignment can cause the SIM card to not fully connect with the internal contacts in your iPhone.
3.
See also these Apple articles below:
If you see No Service, Searching, or SOS on your iPhone or iPad
If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support
Manually update your carrier settings on your iPhone or iPad
Manually update your carrier settings on your iPhone or iPad - Apple Support
Update your network provider settings manually on your iPhone or iPad
Update your network provider settings manually on your iPhone or iPad – Apple Support (UK)
If you see a Cellular, Ultra Wideband, or Apple Pay Issue message after an iOS update or restart