Hello, I recently purchased a PI3 to use in one of my existing projects and the initial research I did led me to believe that the PI2 could be upgraded to PI3 by swapping out SD cards. I got a PI3 from Adafruit and it would not work (4 slow blink followed by 4 fast blink ACT). I asked them and they said that the PI3 has recently gone through a change that makes it not compatible with the PI2 OS. The reason why I am asking is because my project is long and complicated and I would not want to have to redo the entire thing to go to PI3 since I made the project on PI2. Any help feedback would be most appreciated.
Thanks,
Dan
