Im booting on emunand with sx os 2.5 .. but i cant run a payload on my emunand on my cart sd . ..(that why im stuck on the logo.For the issue of getting stuck on logo after replacing only 10 / 11 folders, I had to boot CFW first to get a successful boot then I could reboot into OFW without getting stuck I was booting into AMS, hope that helps.
Im think i will use my nand backup .. and run cfw and remake a new emunand on my sd to get it work