How can a dual-card dual-standby mobile phone tell which number the received message is?

Turn on the phone and enter the settings page. You will see the following screen, select the red line option and click Enter. After clicking, you will see the following screen, where you can change the card information and click the underlined option. Modify the name of the sim card to be less than 3 Chinese characters, as shown in the figure below. So we can make a distinction.

You can see that the received SMS will display the SIM card number in the upper left corner of the message. If 1 is displayed, it means that SIM card 1 has received the SMS. Finally, if the SMS is sent by a mobile phone, the corresponding SIM card number will be displayed, and the word "Sent" will be displayed at the same time, indicating that the SMS was sent successfully.

You can view it from the upper right corner of the message. The specific viewing steps are as follows: first, you need to turn on your mobile phone, and then click SMS to enter. After entering the SMS, you can check which SIM card received the SMS from the upper right corner. Remarks: Long press the menu key to enter the advanced SMS settings.