How to solve the problem that the mobile phone sends a text message without replying?

I suggest you insert your mobile phone into your mobile phone card and send a text message to test it. If there is no problem after changing the mobile phone, it means that there is something wrong with the system of the original mobile phone. After checking whether the settings are ok, only important backup data can be exported and installed.

If the mobile phone is still like this, then there is something wrong with the mobile phone card. Go directly to the business hall to find the staff to solve the problem, and I will give you a new mobile phone card.

Maybe there is something wrong with the number of the SMS center. Please reset it in your information settings. Generally, there is a "SMS center number" in the SMS settings, which is the number of the SMS transfer station. Generally, the number of SMS center in each province is the same and unique. After the mobile phone is connected to the Internet, the system will automatically select this number. However, if this number is modified, the SMS is sent successfully but the other party cannot receive it.