First of all did you make a NAND backup before setting up a rxtools? if you did then you need a hardmod. Which is really soldering wires. if you don't have a NAND backup then sorry your 3ds will never work again.I didn't understand you very well, so what should I do now? And does it requiers any kind of additional hardware?
You should proceed soldering the motherboard of your console in order to flash on it the emuNand which can ve dumped with a program called "emunandtool" . But as I've already said you I'm not sure that you can use the emuNand instead of the sysNand to recover your 3dsI didn't understand you very well, so what should I do now? And does it requiers any kind of additional hardware?
no. sorry.Unfortunately I do not have nandbackup. So I guess there's no way to fix it?
Extract the SD from your console and insert it into your PC.I have emunand on my SD card or where ever should I have it. How do i Do it?
You can find it easly on YouTube. As you can guess the motherboards of the o3ds and the o3ds XL are different eachothers.Any video tutorial maybe? English is my third language so most of the thing I do not understand very well there.