Xseries :: Nokia X6 Zoom Button Do Also Auto-focus

Im having trouble with my X6 camera. When I zoom in for a picture, and then press half the way the picture button to make the auto focus, it starts to zoom out until it has no zoom and takes the picture at the end.

If I do the same process but instead of clicking the picture button, if I do it on the screen button, it works normally. When I press zoom out, it starts automatically doing autofocus(with the square in the middle and flashing the flash light) until I stop.

I already did a software reset and a hardware reset but the problem remains. I have the phone updated, so I can realy understand what´s happening.