The operation of these two cases is as follows: 1. Take Xiaomi CC9 mobile phone as an example. This mobile phone is not equipped with a health system, but Xiaomi mobile phone supports Xiaomi Health APP. You need to download and upgrade and enter personal information before using it. 2、
If it's not a Xiaomi phone, you need to find privacy and security in the settings. Click to allow installation of applications from unknown sources.