Android 5.1.1 runs on three CPU architectures. Downloading the wrong one will cause infinite "Google Play Services has stopped" errors.
Check via an app like Droid Hardware Info or run getprop ro.product.cpu.abi in a terminal. how to install google play store on android 5.1.1
| Issue | Probable Cause | Solution | | :--- | :--- | :--- | | "Authentication Required" Error | Google Framework not recognized. | Remove Google account in Settings > Accounts, reboot, and add account again via Settings (not the Play Store). | | Play Store crashes immediately | Version incompatibility. | Uninstall updates for Play Store and Play Services. Find an older APK version (downgrade). | | "Parse Error" during install | Wrong architecture (e.g., installing ARM64 app on an ARM device). | Verify device CPU architecture using CPU-Z app. | | "Insufficient Storage" | System partition full. | Clear cache of Google Services Framework. | Android 5