The Huawei Health App stopped working on Android after the release of the new version of Huawei Mobile Services, so it was not possible to use the watches anymore. By downloading the Huawei App Gallery, this problem can be solved, and you can watch the method step-by-step in the video.
I hope this helps!
You can download the APK needed for installing the App Gallery here: https://awap3.jos.hicloud.com/appdl-amp-dre/campaignpreview/af902c6d-cb32-4423-b00a-c3cb6322bc66/index.html
I used this app to install the APK: https://play.google.com/store/apps/details?id=com.magdalm.apkinstaller&hl=en
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