If China Merchants Bank's credit card needs to be activated, in order to ensure the safety of using the card, the cardholder needs to open the card within the validity period of the new card. Once the card is successfully opened and signed on the back of the card, it can be used immediately (the signature should be consistent with the signature on the application form): 1. Log in to Pocket Life, select "Select → All → Card Management → One-click Card Opening", and open the card according to the page prompts. 2. Log in to mobile banking and select "My → All → Credit Card → Card Management → Credit Card Opening".