In other Galaxy S8 news, you probably know about the device's new digital assistant feature, Bixby. Samsung has so much faith in the AI that it added a dedicated button on the left side of the handset to active it. But for those who don't intend on using the assistant, the button's a waste of space. However, it was possible to remap it using a third-party app, but not anymore. In an over-the-air update, Samsung has blocked the use of the button for anything other than Bixby. You can no longer remap it to launch another program - unless you root the device, of course.