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How to change the SMS card? Specific steps

Taking China Mobile as an example, the specific steps are as follows:

1. Please check the card number on the back of the SIM card before installing it on the mobile phone.

2. After the SIM card is installed on the mobile phone, send a short message with the content of HK+ card number to 10086.

3. When you receive the short message from China Mobile, you need to reply any character to confirm the card replacement.

4. This will prompt that the card replacement is successful, and the specific steps of card replacement can be realized through SMS.