To ensure the highest compatibility and security, target these specific versions:
This usually means the APK you downloaded requires a newer version of Android (like 6.0 or higher). Double-check that the APK is compatible with Android 5.1.
The key to safety is using a site that verifies cryptographic signatures to ensure the file hasn't been tampered with.
Without signature verification , no APK for Android 5.1 can be considered truly "verified." The feature that matters most is cryptographic proof that the file is exactly what Google released.