kernel to wood? please help :)

hey. ive just downloaded the latest wood onto my R4, but im not sure what files to delete off my card from the old kernel firmware so that it works. sorry for the noobness but can anyone help?

lol. delete all your old files and put the new wood r4 fw onto it. dont forget to extract it. if u have any more problems jus pm me :D

It's better to format your Micro SD, then place the files again.Make sure you back up.