While modern versions of the Play Store (v51.0.19+) require at least Android 6.0 or higher, you can still download compatible legacy versions:
If you successfully updated your Android 5.1 device using our “google play store apk link download for android 51” guide, please share this article with others still struggling with outdated Play Store errors. Lollipop may be old, but with the right APK, it is far from dead. google play store apk link download for android 51