BMW R 1200 gs oil pressure problem

Hello everyone to see if someone can help me, I have changed original oil and filters to my motorcycle, all VAT well and after walking about 3-5 km with it, the red Warning witness is turned on in the painting and the oil pressure light ... it has enough oil and it seems that it circulates well when looking at it through the oxen eye of the level ... you can help me to perform some check to see what it can be ... By chance it has broken up ... I can't think of more things..thanks and slds ....

Hello Starky if you tell me that the motorcycle worked for 3-5 kilometers and the engine continues to work fine, it means that the grease is correct,
I say fine because with those kilometers if I did not grease well it would start sounding very bad.
Surely you have the problem in the oil pressure sensor.
all the best

Hello, I am new for aki !! .. in your case if I did not give you the oil sensor I would sac and clean it. I would not know if this model could have memory but the battery would disconnect to erase possible failures. Maybe in the change of oil when you had empty you had the contact open and picked up that legura ..