How to change the mobile package to telecom 5g

Hello, you need to transfer the number to telecom first. What's the first step? To check whether the portability condition is met, the mobile user edits the short message "CXXZ# name # certificate number" and sends it to 186. Step 2: If the portability condition is met, the mobile user can apply for an authorization code, and the mobile user edits the short message "SQXZ# name # certificate number" and sends it to 186. Step 3? After receiving the authorization code, bring the valid certificate of the number user registered in the mobile to the telecom business hall, and show the valid authorization code for bringing in. After you bring it into the telecom, you can apply for a 5G package.