I had my first lockup. I was bracketing and got the spinning arrow. I had to drop the battery to get back the camera. Then later in the day, I got weird previews, changing white balance did not change the viewfinder preview. Looking at the captured image showed the same red cast color. I dropped out the battery again, reselected the white balance again, it came back. Looking at the images that had the red cast, it was OK once I assigned a white balance in Lightroom. My firmware is 1.02, I think I saw there was a 1.2?, I will look for it. My firmware was last updated via the IOS app on my iPhone.