If you are trying to get the working on an Android 4.1.2 Jelly Bean device, the most important thing to know is that Google officially discontinued support for this version in August 2021.

On APKMirror, you can find the version that requires Android 4.1+ (API 16) . Verify this requirement before downloading.

You must install a newer—but still compatible—APK that understands modern encryption methods while still working on API Level 16 (Android 4.1.2).

Android 4.1.2 blocks the installation of apps downloaded outside the official store by default. Open your device .

This means that even if you find a "Play Store APK Android 4.1.2," it likely won't connect to Google servers effectively, as the underlying Play Services libraries are no longer updated for that architecture. 3. App Compatibility & APK Mirroring

Are you getting a when opening the store?