You can, but formatting it won't do anything; it'll still be on 11.0. Your only options of downgrading are a hardmod or using another 3ds with custom firmware.
You can, but formatting it won't do anything; it'll still be on 11.0. Your only options of downgrading are a hardmod or using another 3ds with custom firmware.
Oh, I thought you meant sending it back to an older firmware.
You'll need the game Fieldrunners or legends of Exidia on a CFW'd system to downgrade. If you plan on returning it and buying a new one, you could buy one on a lower firmware.
Formatting is safe. There's no way to prevent a soft-brick while downgrading, but formatting your system before doing it will significantly lower the chance of a brick.
Formatting is safe. There's no way to prevent a soft-brick while downgrading, but formatting your system before doing it will significantly lower the chance of a brick.
If it's a brand new system, you probably don't have to format it, but if you do format it, you should format it before accessing the homebrew launcher.
If it's a brand new system, you probably don't have to format it, but if you do format it, you should format it before accessing the homebrew launcher.