1. First, open the appstore of the device, such as googleplay and App Store, and search for the built-in menu or related keywords of Grandma 2 in the app store.

2. Secondly, find the Chinese version of Grandma 2' s built-in menu application in the search results, and click Download. After the download is completed, install the application on the device.

3. After the final installation, open the application and start using it.