Offers various versions, including Google Play Store 35.2.19, which is noted as compatible with Android 5.0+.
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Android version 5.1 (Lollipop) may also be relevant, but the version 51.1 refers to the , not Android OS. google play store apk download for android 51 1 top
Go to Settings > Apps > Google Play Store > Clear Cache / Clear Data. Repeat this for Google Play Services . Offers various versions, including Google Play Store 35