Hello! This is a short guide about how to downgrade from DSM 6.2 to DSM 6.1 after a failed upgrade. I made this mistake myself, so i'm sharing how to fix it!    Your going to need a spare HDD or SSD. Make sure there is nothing on it.  You've installed DSM before, so you should have your synoboot.img from JunsLoader. Your current bootloader on your USB in now NONFUNCTIONING, you will need to reflash your USB with JunsLoader.    Once you have your new, reflashed