I m using 7.1.1 for last 2 days and must say it's very smooth and battery friendly.
To use play store download these files and follow the video from 3.30.
Download these files:
Google Installer : https://drive.google.com/file/d/0B6pQCizpnzoET2NaY1hXODNMOEk/view
Services Framework : http://www.apkmirror.com/apk/google-inc/google-services-framework/google-services-framework-7-1-2-release/google-services-framework-7-1-2-android-apk-download/download/
Account Manager : http://www.apkmirror.com/apk/google-inc/google-account-manager/google-account-manager-7-1-2-release/google-account-manager-7-1-2-android-apk-download/download/
Play Services : http://www.apkmirror.com/apk/google...-448-146496160-android-apk-download/download/
Now follow this video from time 3.30 : https://www.youtube.com/watch?v=krpcM7isdlE
Enjoy
To use play store download these files and follow the video from 3.30.
Download these files:
Google Installer : https://drive.google.com/file/d/0B6pQCizpnzoET2NaY1hXODNMOEk/view
Services Framework : http://www.apkmirror.com/apk/google-inc/google-services-framework/google-services-framework-7-1-2-release/google-services-framework-7-1-2-android-apk-download/download/
Account Manager : http://www.apkmirror.com/apk/google-inc/google-account-manager/google-account-manager-7-1-2-release/google-account-manager-7-1-2-android-apk-download/download/
Play Services : http://www.apkmirror.com/apk/google...-448-146496160-android-apk-download/download/
Now follow this video from time 3.30 : https://www.youtube.com/watch?v=krpcM7isdlE
Enjoy