hello everyone, good day to you all. I m kind of like a newbee on xbox technical abilities. but i know the basics, like how to install freestyle dashboard, use xexmenu, etc. But the reason why i m here is i m looking to get some help with my xbox 360 rgh/jtag corona. it blocked itself while updating. it still boots into XellReloaded but i don t have a backup nand i can flash it with. Does anyone knows how to unblock it? do i need the nand files? or does someone has them that i can use to flash it via usb? if you can answer these questions it be much helpfull, THANK YOU