Windows 10 Mobile does support LED notifications, but OEMs need to make it happen

[Windows Central]

I have been using smartphones now nearly a decade, and one of the fascinating observations is the rise and fall ? and rise again ? of LED notifications. Going back to Treos and BlackBerrys, some devices had a blinking LED just to let you know you had a cellular signal. Later, they morphed into notification signals to let you know of a text message or email. Some phones later had various colors combos to add even more differentiation.
Then they stopped.

Full story from the WindowsCentral blog...