1. First open it and click to enter China Mobile App, as shown in the figure below.
2. Enter the home page and click the input box at the top of the page, as shown in the figure below.
3. Enter the search for "replacement card", find it and click enter, as shown in the figure below.
4. Then, click to enter the card replacement business and check the detailed options, as shown in the figure below.
5. After entering the mobile phone number to be processed, click the option I want to process, as shown in the figure below.
6, according to the prompt for authentication, you can operate, as shown in the figure below.
Please note when using smart SIM card:
1. Do not bend the card, and be careful to protect the metal chip on the card.
2. Keep the metal chip clean to avoid being polluted by dust and chemicals;
3. To protect the metal chip, please avoid pulling the SIM card out of the phone frequently;
4. Do not place the SIM card in an environment above 85℃ or below -35℃;
5. Please turn off the power of the mobile phone before taking out or putting in the SIM card;
6. When the mobile phone has a low battery warning, please turn off the mobile phone and replace the battery.