Why Did SamSung's Profit Oulook Miss Estimates?

Source: http://geekshizzle.com

I heard lately that even Samsung is not doing as superb as it should be. Although it is devouring market shares with its huge selection of phones, tablets, [phablets], TVs, computers, etc...; smashing competition with an appealing operating system (Android) -as I like to call it: a personable/fashionable/customizable OS; earnings don't seem to hit over the roof.
According to an article on BBC:

Samsung shares fell 3.8% after the profit guidance. Its shares have dropped more than