My wife has the Samsung Galaxy J3 2016, I had to delete her fitbit App because she was having problems, I have gone into Google Play Store to reload the app onto her phone but it wont download it says already installed, when it isnt, any help muchly appreciated.
Go into your playstore app and press the 3 lines icon in the search bar and press the My Apps and Games option and look at your library as the app on question may still be there.
Also look in settings and Apps to see if the app is still there even though you've gone through the uninstall sequence @Tankie1rtr
Current Phone > Samsung Z Fold³ 5G.
The same problem on my Samsung Galaxy J3 wifi not working. I already try many options but still no connect any wifi on my device we are read many articles to search in google bar and find different types of solution, but still, same problem no solved yet.