Download Google Play Store APK Latest Version 51.x for Android 5.1 (Lollipop)
If the app says it is up to date, but apps still won't download, or if the store won't open, you must download the latest compatible APK. Google Play Store APK Download & Installation Guide Download Google Play Store APK Latest Version 51
I can pinpoint the exact download build link for your specific hardware architecture. Share public link but apps still won't download