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Mystery Tune??? On 2015 535i

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Need assistance in identifying the tune installed in my 2015 BMW 535i. This button appears to control settings, button blinks blue at intermittent intervals depending on how many times pressed (button appears to be Saturn outline) . There is a red plug going directly into the OBD2 port w/separate access port (white female plug) to still run diagnostics.
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Vehicle has been stricken with misc. issues since unplugged and would like to know what or if it did anything?
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