If you accidentally swiped away all notifications, there's a way to look at your notification history on Android. You do need to turn it on first, though.

RCS messaging allows your regular text messaging app to act more like a chat app, with group chats and more -- you just have to know how to turn it on.

Android's got a great new feature that will finally bring text messages into the 21st century. Here's how to turn it on – and why it's so good ...