So I put my SD Card on my blue 3DS, and when I turn it on, the notification LED turns white and i was scared and my 3ds turned off a copple of times. I copied my boot.firm and boot.3dsx files on my Windows 7 PC. And I reinserted my SD Card again and again. And I turned on my 3DS, my stuff are safe and I was like "phew! That was a close one!". I noticed the Notification LED turned white when I was 13 years old.