Hi ​@gemmamary 

I do apologies that you are having issues with texts, we will try and assist you.

Can you tell me the make and model of your phone please.

Michael Z

Hi it’s the iPhone 16 pro 

Hi ​@gemmamary 

Thank you for letting us know the make and model of your device. 

Could you please try the below steps and let us know how that goes for you. 

Go to Settings.
Tap Phone.
Tap My Number.
Use the delete button to remove the old number.
Use the keypad to enter the new number.
Tap Save.
1. Go to Settings
2. Messages
3. Turn off iMessage.
4. Go to General
5. Reset
6. Reset Network Settings.
7. Once the iPhone is open.
8. Go to Settings
9. Messages Turn ON iMessage.
10.This will recognize the new sim and have it verified.

Regards,

Gemma 

iD Mobile Social Media

Hi, ​@gemmamary 

Thank you for reaching out. I’m sorry to hear that you’re having trouble sending and receiving text messages on your iPhone 16 Pro.

To help resolve this, please try the following steps:

Make sure Airplane Mode is turned off.

Check that Mobile Data is enabled in Settings > Cellular.

Restart your iPhone.

Ensure your Message settings are correct by going to Settings > Messages and verifying that Send as SMS is turned on.

Reset your network settings by going to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. (Note: This will erase saved Wi-Fi passwords.)

Thank you,

Zandile