I was having this problem when I was on 10.3, and I have just downgraded to 9.2. Updated EmuNAND to 10.3, entered the eShop, and I still receive this error. Think you guys could help me identify the cause of this annoying error?
You will get this error only on eShop (other online stuff like creating NNID or playing online games will work), if you access it from region changed console. N3DS has almost no chance of working, while I have tried doing the same on O3DS XL back when we had 9.5 emuNAND (region change from EUR to JPN), eShop never worked. I also did that 3 SD card method several time with no luck.