Hacking black screen after choidujour update. won't boot ofw of cfw

[cujo200231]

i get a black screen after choidujour firmware update. It all went fine but i dunno if i messed it up bc i chose exfat over fat32 (couldn't remember what one i did before. Now it won't boot ofw or cfw. I'm using sxos and that screen will load but thats it. I don't have a backup nand. Am i Secrewed?

 

[LIY2012]

Not necessarily. As long as your prodinfo is good you might be able to recover. But why wouldn't you have a backup?