I have the case with the current active firmware V4.3 Samsung tried there, no problem.
I shock then in a not unknown bereichte Forum, Samsung would actively third-party cases block, via software:
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To my displeasure I have to confirm this unfortunately. I flashed the official 4.4 version - the cover is no longer recognized as an S-view capability.
The product goes back tomorrow. I want a working cover, no decoration.