Google tightens the requirements for Android devices

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The American company Google decided to prohibit uncertified smartphones based on the Android operating system access to its proprietary services, including Gmail, Google Play, Google Drive and other services. This means that in the near future uncertified smartphones can not be sold along with a pre-installed package of Google's proprietary utilities. In addition, if you run a branded product on a non-certified mobile device, an error message will be displayed.
Google ужесточает требования к сертифицированию Андроид-устройств

At the moment there are loopholes that allow users of uncertified smartphones to use the services of an American developer. For example, you can access the services by manually registering the device or using the Magisk software to forge the device certification information.