Since I upgrade to new Android version (I had to do it via PC due to various failed attempts), my screen passes to be horizontal only when I ask YouTube to use full-screen mode and then, it doesn't go back to normal. It's not a major issue, but I think I've paid for this phone enough to use it without being worried for malfunctioning.
Sorry for my english if there are mistakes and I hope this would be fixed as soon as possible.
