Why can't the mobile phone send short messages?

Unable to send SMS may be due to signal problems, mobile phone system problems, number problems, sensitive words in the content, etc.

Software system: iOS 14

1, signal problem

Any mobile phone must use the signal provided by the communication operator to answer the phone or send and receive short messages, and the most common reasons leading to the failure of sending short messages by mobile phones are lack of signal, unstable signal and failure. Although there seems to be a signal, because the signal is in a fluctuating state, there will be a prompt that the transmission failed.

2, mobile phone system problems

If it is determined that there is nothing wrong with the cell phone signal, there may be something wrong with the cell phone system. The system problem mentioned here is not a system error, but that when the mobile phone system detects the mobile phone signal, based on the fluctuation of the signal, there will be problems when the mobile phone calls related functions.

For example, the front end shows that the connection is normal, but in fact, the background is still not connected normally. In this case, you can restart your phone directly and send SMS normally.

3. The number problem

It may be questioned by many friends because the number can't be sent out, but it's true. Take some common numbers starting with "100" as an example. The other party can send a short message to himself, but when replying to "TD", there will be a prompt that the sending failed.

This is because the number and equipment used by the other party can't receive SMS at all, and it can also be understood that the other party doesn't want to receive SMS. There is no good solution to this situation, because it is not your own problem.

4. There are sensitive words in the content.

There are sensitive words in SMS, which are illegal and blocked by SMS platform. This situation is more common, we just need to directly remove sensitive words or replace them with synonyms.

What if I can't receive the SMS verification code?

Mobile phone setting problem. Please check your phone settings, because it comes with an interceptor or an application you downloaded yourself.

If the verification code is not intercepted, but you still can't receive the verification code message, you can receive other messages. You can contact the product service provider that issued the verification code for feedback.

If it is still not solved, you can contact the customer service requirements related to number operation for help.