I'm curious how it will be and It's giving me excitement on thinking about mode it. After I will do it, I will turn it back to it's original state probably. It will be also the first kind of console that runs games. And It's good for people who loves consoles and are dedicated to know it's possible or not, to share information with people. That's all about.
Unlike some people here, I mostly don't care what you do with your own stuff. If you want to convert it into a normal devkit, be my guest. It's up to you. I do support the "dump the SD Card and NAND and preserve that shiz" crowd though. The SD Card can be preserved
now. It's removable, so you can make a disk image dump. The Nintendo 3DS folder'll be encrypted, sure - but if the NAND is dumped it will be decryptable. As for dumping the NAND itself? If there is in fact no Game Card slot, that makes the prospect a little harder. From what I can gather, the Louvre promotional 3DSes are developer systems, but stripped way down, with no speakers. Wi-Fi card, or Game Card slot. If this is true, the only way to get an entrypoint would either be to somehow find an exploit in the Louvre app itself (unlikely) or to
install a Game Card slot with which to run NTRBoot. (If you
do want to retrofit your Louvre 3DS into a normal developer 3DS, you'll need to do this as one of the steps anyway!)
Collectors can be the enemy of digital preservation when they only care about value go up, much like how the Benin Bronzes were only valued for the bronze except by the British who saw their inate value as artifacts, which is why they were rescued in the first place. This is also why known iconoclasts - socialists and Muslims chief among them, but others are also guilty - want them returned to their places of origin along with many other artifacts they know will be destroyed for money or cult faith in such cases. Not to dump on all collectors though: private collectors have been historically less vulnerable to such politically correct predations than museums, and the digital sphere is no exception. Museums rarely have copies of stuff that enthusiasts haven't preserved first, if at all. I want to help this any way I can.
TL;DR: - you need an entrypoint. Considering how stripped-down these units are, you will probably need to solder a Game Card slot onto the motherboard, get a flashcard that can run NTRboot (either natively or via patching - I assume this isn't your only DS) and then remember that this is a
development unit. Don't follow the retail hacking guide. I tried finding the development one for you, but I don't really have time to go super deep in the weeds. I don't even know if the dev unit guide is still up to be honest. Once you have your entrypoint, dumping the NAND is no problem using Godmode9. Dumping the SD Card is even easier. Plug it into a PC and dump the disk the same way you would any other FAT32 device.