I'm scared to mess my cfw setup

1. Under warranty, NO: modify your console avoid it... But paying for that, I think that's just no matters to Nintendo
2. Nowadays, obtain a brick just for hack you console is almost impossible, and if you have one there's affordable ways to recover from it. Then, don't be afraid... And about lack of space to storage a NAND copy, just try to get/use another SD card with more available memory space.

 

your warranty will be void, but they'll still offer repairs with pricetag (and undo your mod in the process)

 

Ok. I wanted to say that if your console actually is under warranty, then modify it avoids/cancels that warranty and Nintendo could not response for any kind of damage.

But if warranty is over and a kind of damage occurs, and you send your console to a technical autorized support for its revision and you pay for that, then it doesn't really matter that console is hacked or not.

PS: Sorry if my explanation is somewhat entangled, but english isn't my native language, and my english level is a little poor

 

I believe that "under-warranty" time applies from the moment you buyed your console. IDK exactly what time it is (perharps between 1-2 years... it also depends from the store when you've buyed it).

I want also to add that Nintendo never, ever, provides any kind of support to CFW/homebrews/hacks/mods. That kind of support is only provided for the scene community (that is, us)

 

The guide is very simple and is step by step. I’d say just hack it. Money that U won’t spend on games will be enough to replace the system n rare case something happens to it. But it’s pretty fool proof

 

You're just going to have to decide for yourself whether your fear overrides your desire then, aren't you? You can still have plenty of fun with your 3DS without hacking it - but then an unhacked 3DS isn't always going to work flawlessly either.

But if something goes wrong, fixing it will depend on your ability to describe your problem and to use whatever instructions you may get from the community.

 

As long as you pay attention and follow the steps, you should be fine. You definitely want to do a nand back up though. Find some way and make the space.

also, I wouldn't worry too much about Nintendo's support because they're probably not going to support the 3DS much longer anyway so it's not going to matter.