Mar 18, 2019 · After you connect Galaxy S10 with your display monitor via DeX cable, you will see a notification window with two options Start Samsung Dex and Switch to Screen mirroring. Start Samsung DeX: In this mode, your mobile display will turn off and appears on your display monitor or TV. Since a recent update (I can't say exactly which or when) each time I connect my Samsung S10 to my PC, I get a Samsung DeX notification.... I don't want DeX, but I do want to get rid of the notification every time I connect my phone. DeX was originally used only with Samsung's DeX Station and DeX dock. Later, with the launch of the Galaxy S9, the DeX Pad was added, which also allowed you to use your phone as a trackpad. As mentioned above, none of these are required anymore, but if you happen to encounter one you can still use it – as long as it is built to accommodate it. xda-developers Samsung Galaxy S8 Samsung Galaxy S8 Questions & Answers Samsung DeX Home battery drain by bob*nwk XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality.