I sent a short message, but it didn't show that it had been sent. What happened when the other party didn't receive it?

If there is only a problem with the short message function, and other functions such as making phone calls and surfing the Internet are fine, then the number of the information center is set incorrectly, and you can send short messages by setting the number of the information center correctly.

Taking OPPO mobile phone as an example, the steps for setting the information center number are as follows:

First turn on the phone, find "Settings" on the phone desktop, and click Enter.

Second, after entering the settings, go down to the menu and find the "information" column, and click Enter.

Three, after entering the information, find the "advanced" column, click enter.

Four, after entering the advanced settings, find the "information center number" column, click enter.

5. After entering the information center number, find the SIM card that can't send short messages, and click Enter.

Six, after entering the information center number, fill in the correct operator information center number (this number can be called the operator's customer service telephone consultation, each local number is different), and save it.