Hello guys. so almost a year ago i updated my xbox 360 dashboard but i had no idea about it like i just wanted to update it so i downloaded xebuild gui and nand 360 flasher. so i did it fast and i think i didnt put the right things. so it got bricked :/ yes it got bricked and i had to go to a shop and repair it now i know about it and i want to update it i put the right cpukey and all the other keys and its the right type and motherboard its all set up. but i dont wanna do it i am afraid doing it because maybe it will brick again i realllly want to do it but i am scared. so i dont really wanna do it. so i need help guys plz help. what do i do???