my brother has an 08 6.4 and installed a 4in afe exhaust with DPF delete and is trying to load tunes onto the truck. when the device was savng his stock tune it froze on him and he had to restart it now its throwing a code 1001 and saying cant intialize programming or something like that, and if he tries to put a preloaded tune on it, it says to return it to stock before loading a tune. any elp would be aprreciated hes clueless and i have never messed with em before. thanks Mike