Hacking Help with modding o3ds etc et

[rewrewrew123]

I own a O3DS with FW 2.1.0-4E
I own a copy of Cubic Ninja.
I would like to run backup of my games.
What I should install?
Can someone please tell me what I should do?
I don't have, and don't wanna buy any flashcard I would like to use Ninjhaxx...
I haven't understood very much what emunand means and I have a question.
If I buy a game wich update to 4.x FW, if I buy one if ultimate games, how can I do for don't upgrade? Please, I need to know these things ASAP

P.s I need to install PBT-CFW. How to uninstall it?

 

[Psi-hate]

Um.. I think the easiest approach is to update via a game to 4.x-9.2 and then use gateway's downgrader to give you the full 4.x files since the cart update don't supply the browser. When you do that, you could use RXtools to install Cias and play on an emundand or use Ninjhax with your Cubic Ninja. If anyone can correct me if I'm wrong or supply an easier/different solution, please do!

 

[rewrewrew123]

How can I downgrade my browser at a lower version than mine? I read about PBT-CFW but what this game should do? And the CFW can be uninstalled then this downgrade?

 

[rewrewrew123]

And then I found this...
http://gbatemp.net/threads/tutorial-installing-patched-rxtools-cfw-start-to-finish.390867/

PROBLEM SOLVED!

But how to uninstall the exploit and restore the NAND?