So, I am downgrading my 2 o3DSes (via Plailect guide), I get to the point of downgrading to 2.1 via PlaiSysUpdater, - the oXL downgraded just fine, but I am still getting error with small one, at the end when all cias are installed correctly and its doing some magic with NFIRM the error occurres. I tried to restore emunand from backup, format it once more and I also tried to do it all over and still no luck. There is not much written about the error in guide, and I followed the guide accurately, I am just not sure what to do now... So I try asking, since someone would poke me in the right direction...