So I recently bought used old3DS with 5.1.0-0E firmware on it, it will arrive tomorrow so in this time I read some things about hacking it, but it shows that it's really hard to get arm9loaderhax on it. On Plailect Guide it's said that I need to get it to 6.X.X version but to do that I cart update to do that, but neither me or my friends have game to this. Is there any other options to get it to 6.X.X or 4.X.X or even up to 9.2.0? I read about 3DNUS and upgrading firmware by .cia files, but for someone new to 3DS I'm kinda scared that I'll brick my 3DS. Beside that, when I tried to download things with 3DNUS I'm always getting some errors which make me feel even more uncomfortable. Can someone help me get my 3DS with 5.1.0-0E to something more useful? How should I backup, does method with gateway loader still works? Is there any other/simpler option to run some roms on my old 3DS?