Fixed this tonight and a bit embarassed i could state that it was a stuck 2nd limit switch...
I cant understand how this has happened because it was in X-axis and not Y (that i moved) but in some way that switch has been pressed!
Tried first to "disconnect" check soft OT at power on - in IPL mode, but that didn't made any difference. Found the stuck switch, fixed it and pressed "Y" to - check soft OT at power on - in IPL mode but then i couldn't zero return.
Pressed "N" again at the mode above and then it worked!