I use a 4G mobile phone with a 4G card. How to change the card by SMS?

SMS self-service card replacement process: 1. After purchasing a 4G mobile phone, insert the 4G temporary card into the 4G mobile phone, and insert the original 3G/2G card into the original mobile phone; 2. Edit the short message "HK mobile phone number" on the 4G mobile phone and send it to "10659157"; 3. Send a reminder message to the customer's 4G mobile phone via "10659 157" to remind the customer to send the card replacement verification code to the original 3G/2G mobile phone; 4. Edit the short message "YZ verification code" on the 4G mobile phone and send it to "10659157"; After the 5.4G mobile phone is restarted, you will receive a message that the card replacement is successful and the 4G function has been enabled. For more service offers, click on "official website" Customer Service 2 19 below to answer your questions.