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I just got a raspberry pi 2 B and installed raspbain via noobs as per the setup guide on a 16gb Kingston micro SDHC 8GB class 10 card and everything was working fine and I used it for a day. Then I got a Sony micro SDXC 64GB class 10 card and did the same exact thing as with the 8gb and put it into my pi and booted it up. Nothing happened on my monitor (HDMI) and the green light did not light up. It seems to me that the pi is not not seeing the 64gb card but it is brand new. What can I do to fix this?