This guide tries to gather all the necessary information on how to install and set up microG GmsCore and other stuff that is useful in replacing Google Play Services.
After following the steps outlined in this post, you will be able to
- install and run many applications that would previously refuse to run or even to install because of missing Play Services,
- use apps that require Google Cloud Messaging (GCM), such as TextSecure / Signal,
- use apps that require the Google Maps API (v1 or v2, should work fine with most apps) and
- access the Play Store to download, install and update applications (at least to some extent).
All of the above is achieved using free and open-source software. Installing the proprietary Google Play Services is not required. A Google account is only needed if you want to access the Play Store.Read more