How to find out how much my mobile phone owes?

Operating system: iOS 14.4. 1.

1. Take Unicom card number as an example. First, click the SMS icon on the mobile phone desktop to open the SMS interface.

2. After opening the SMS, click the Write SMS icon in the upper right corner of the page.

3. After entering the short message writing page, the recipient inputs 100 10, and then starts to input the short message content.

4. Send 10 10 to 10 1 to check the phone bill balance and real-time phone bill.

5. After waiting for a few seconds, you can receive the short message of phone bill balance sent by Unicom 100 10.

6. You can also send HFMX, and you can see the real-time phone bill details of the current month and how much each item has been deducted.