so you need a nandx or jrunner to read nand , 4gbnand reader if you have a corona , a coolrunner chip or slim proto i just use coolruner rev c , read nand . boot to xell to get cpu , load cpu key , extract files , open jflasher , load ltu2 firmware , ,right click grey area , click key/cr go to your extracted file files load key.bin and then c/r.bin but when you go into your extracted files it wont say key.bin or c/r.bin not sure if its only on XP what i am using , it will just say KEY and C/R when you have loaded both click ok then save it somewhere , then write it to ,you board , job done