When flying in the evening i have an problem when landing,when holding stick down it will go down,then touch the ground it goes up agian.

Any have an qlue how to solve this?

already did ful calibration,even tryd to disable the position sensers.

I had a similar issue yesterday. It was night and I was manually landing on a black road. It came down and drifted a little while holding down the left stick and did not want to land. Although, I had no problem when I used the auto-land feature.

My guess is that the sensors are seeing the asphalt but the camera is not due to the low light condition. If you use the auto land feature with the controller/ap you override the sensors.