I received a 4GUIM card from the telecom company. How to change the card?

There are four steps in self-service card replacement: step 1, insert the 4GUIM card into the 4G mobile phone terminal, edit the short message "HK mobile phone number" and send it to 10659 157 (for example, edit "HK 133 12345678" and send it. Step 2, use 3GUIM card to receive the card replacement verification code. Step 3, edit the short message "YZ verification code" with 4GUIM card and send it to10659157; Step 4: The 4GUIM card receives the successfully written SMS, and the 3G card is invalid. If the self-service card replacement is unsuccessful, please bring the valid ID of the owner to the nearest telecom business hall for verification. Broadband on demand, fast thinking. The official account of China Telecom's Guizhou customer service WeChat can directly handle the keyword "Broadband on demand", which is convenient and fast. Customer service 222 will answer your questions.