So basically i had CIOS Rev 10 and all USB loaders worked great but as soon as I try Call Of Duty Modern Warfare Reflex, it dosen't seem to work. I then searched on google what could the problem be and its saying that you need to have at least cIOS Rev 14. Updated to that, no USB loader works anymore, 30 sec limit comes on but it still dosen't work. I then update to cIOS Rev 15 same thing. But whenever I restore my NAND backup which had cIOS Rev 10 the USB loader seems to work. Got a solution?