Fisrt.. I am so thx to @d0k3 's tools. and @slslasher . I successed to unbrick my n3ds,but here has a problem,I use Luma 5.5 and CakesFW 178 can success boot the sysNAND,and update to 11 via Setting,but the DevMenu and BigBlueMenu can not works , only FBI works . I can't find out where is the...