In home screen I can only press "Start" and top bar icons and two buttons in the bottom of the screen ("Phone" and "Contacts"?).
Everything else doesn't work.
When I press "Start", a list of programs opens, I can scroll it and start some programs (e.g. File Explorer). But I can't start Settings for example - the icon is highlighted, but nothing happens.
And some windows or programs don't disappear from the screen after I close them.
It's hard to explain, but it looks like the screen is not refreshing when it should..