Another angle: Maybe "Android 79 2" is a typo for Android Nougat (7.x) and the user wants the latest update (version 79.2) of the LEGO Cube app. Or maybe the app version is 79.2. The user could be a beginner needing step-by-step instructions or looking for where to safely download the APK.

Need to verify if such an app exists. "Lego Cube" isn't a standard term. Maybe they mean LEGO Digital Designer? Or another similar app. If the app isn't real, the user might be creating an imaginary scenario. But since the user is asking for assistance, perhaps they need help with a real app but provided incorrect details. In that case, advising them to check the app's name and availability would be important.

I should also consider possible safety concerns. Downloading APKs from unofficial sources can be risky. The user needs to be warned about this and advised to use trusted sources, like the Google Play Store if available. If the app isn't on the Play Store, they might need an alternative like F-Droid or a trusted app repository, but again, that's risky. Maybe recommend checking the developer's official website for the APK.

Lego Cube APK probably refers to an Android application related to building with LEGO bricks in a 3D environment. The "upd" likely stands for "update", and "android 79 2" might be referring to Android version 7.9.2, which isn't a standard Android version. Standard versions are like 7.0 (Nougat), 8.0 (Oreo), etc. Maybe there's a typo or misunderstanding in the version number. Alternatively, the user could be referring to an app version, like version 79.2 of the app.

Additionally, the user might want to know how to install an APK, especially if their Android version requires enabling "Unknown Sources" in settings. Installation steps could involve downloading the APK, enabling proper settings, and then installing it. Also, compatibility checks for Android 7.x might be necessary. If the app requires a higher Android version, that could be an issue.