Ah.Actually it will be my first time soldering. The experience with XL was actually assisting a friend doing so. I know it is quite risky. But I can't expend much on this 3DS, I still want to sell it for some profit. It is not my main system. My main system is a XL with full original stuff and no hacking. Anyway, I already wanted to buy a soldering kit and start doing mods, so this will be a big reason to try and learn it.
I live in brazil, so even if it is reasonably priced, the giant expense in shipping (sending and receiving), the ridiculous dollar conversion (courtesy of our govern's policies destroying our economy) and the absurd waits for the shipping (my last international package arrived 60 days late), make it a big no-no...
Anyway, as I am not willing to expend money I don't have on this hardware, then it is literrally a brick to me now. I can try soldering it myself, and any progress I get would be pure profit.
Well, then just make sure to have a steady hand, be really careful to avoid touching any of the chips or other components on the board with the soldering iron. Even if you fuck up the soldering, as long as you don't accidentally melt/destroy any of the components on the board by touching them, and you make absolutely sure there is no solder bridging any of the pads before you plug the battery back in, you can't break your 3DS any further.
Worst case scenario then is that you'll lift one of the solder pads off the board and then you'll probably be unable to do the mod unless you can put some solder in the hole and get it to make contact with the trace. I haven't heard of that happening with anyone on the 3DS, but it happened with quite a few people who tried to install a modchip on their Wii, I guess that is a possibility when you have such small solder pads.
Your biggest problem might be avoiding bridging solder pads, that tends to be a problem for me when they're very close together. Make sure to have desoldering braid or a solder sucker on hand so you can remove the solder if that happens. I find that removing solder is much harder than applying it, so be careful to not use too much.
I haven't attempted any console modding yet myself, I just don't trust my soldering skills enough. I have done a bit of soldering though and I repaired my headphones not long ago which went well.
Maybe you can get some help from your friend?
