Android System as default Home app?

[Ouros Longtail]

So, I have a samsung galaxy s4 and up until now I have had touchwiz as my default home app. Then my cell. phone came back from the repair center a few weeks ago and I just realized the default home app is not touchwiz anymore but Angroid System...

I don't really quite know what that means or how to make it the default home app. I would like to know before I change it to nova in case I need to put it back as the main default app if there is a problem and how they could have dome that at the repair center. Thanks people!

 

[B. Diddy]

Boy, that's weird. Go to the App Manager, tap menu, and Reset All App Preferences. (Sorry, but that option might be in a different place on different devices.) Now tap Home, and see what choices you get. Select TouchWiz and tap Always.