Calibrating Remote Controller - endless loop

Just downloaded the new operating system. Checked out my control screen. I've got a warning telling me to calibrate my controller.

I go to where you do that. It tells me to move the stick to center position and tap Start. Both of my sticks ARE in center position. I tap Start. Then I get a WARNING "Return sticks to midpoints before clicking Start button...." I hit OK. And the process starts all over, telling me to move my stick to the center point.

That's where they ARE. But I move both of them around, and let them rest in the center. So, I hit Start. Then it takes me back to the warning.

My controller has never been dropped or bumped... I don't get it.

What am I missing?

Thanks guys. Turned out I made a mistake in upgrading firmware AND I had an issue with the sticks. Tough pinpointing when two things are messed up.

Thanks much.