Is it poisoned that the mobile phone can't send and receive text messages?

If it is not a smartphone with an operating system, there is no poisoning problem. Please check whether the information center number in your SMS settings is correct. How do I know if the SMS center number is correct? Just compare the SMS center number in your sister's mobile phone with the SMS center number in her friend's mobile phone in the same city. Just set it to the same number as her friend's SMS center.

Steps:

1. Select the SMS menu.

2. Select the "Information Settings" option.

3. Select the "Information Center" option.

Just set the same information center number as her friend.