How to activate domestic roaming function in a different place?

Take Huawei mobile phones as an example. The method of activating the domestic roaming function in a different place is as follows:

1. First, open the China Mobile APP on the mobile phone (if it is not installed, you can install it in the mobile app store Download and install). Please refer to the following figure for operation:

2. Next, after opening the China Mobile APP, click on International/Hong Kong, Macao and Taiwan on the page to open. Please refer to the following figure for operation:

3. Next, enter the country selection page. Different countries charge different fees (take South Korea as an example below). Please refer to the following figure to operate:

4. After that, select the desired roaming package on the country selection page, and then click on the package. Please refer to the following figure to operate:

5. Finally, click Apply Now at the bottom of the page, so that international roaming is enabled. Please refer to the following figure for operation:

6. The successful application page is as shown below: