If you're into knowing the deeper details about your device, then you've likely accessed the engineering screen on your BlackBerry before. Also known as the escreen, it offers access to many diagnostic tools and just a general wealth of information about how things are working on your device, under the hood so to speak.
Remote logs, Cell tower information, APN information, Wi-Fi state, Vendor ID and more can be accessed through this menu. it's an insanely useful tool for those who know what to do with the information or understand what it all means. With BlackBerry 10, this menu was pretty much assumed to of have gone missing, due to the fact the old methods of accessing it no longer worked.
As it turns out, it didn't go missing at all. It's still there, still accessible. it's just been hidden a little bit deeper in BlackBerry 10 than in previous OS versions.
Here is the method to access the engineering screen on Blackberry 10: