Why can’t ZTE mobile phones send text messages?

Check if it is a problem with SMS settings. If you can't adjust it, it's best to call the mobile phone operator's manual customer service to find out how to set it up.

You can try restoring factory settings

If the above methods do not work, it is recommended to go to a nearby ZTE mobile phone store for repair.

The steps to restore factory settings are as follows

1. Find Settings and click on it. As shown in the picture

2. As shown in the picture, click Restore Factory Settings in the red box.

3. Next is this screen. After you restore the factory settings, nothing will be left, just like when you first bought the phone. Remember to make a backup before doing a factory reset.

Note: The above methods are risky, please use them with caution.