Hi this is my first time on this site and I'm new, but my friend has a homebrew 3ds and recently was letting his girlfriend play on it and she accidentally updated the system and now it wont boot up without crashing, he asked me to fix it but I told him I need the Nand backup file to do so, but he doesn't remember where the file is. So i wanna know is there anyway to restore the system without it or reset the system