How can I uninstall Samsung software?

How can I uninstall Samsung software..I am trying to use a flip cover for my Samsung 7edge..it doesn't work properly ..I was told there was an issue with my Samsung software to use this Case... that's what vendor told me..of course Verizon said it was a defective case..to make sure it wasn't the s cover flip case I ordered another case..this new case didn't work properly either..if anyone could help I sure would soo appreciate..very fraustrated!

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