If you don't have a backup, it's dead. Sorry. Have you tried taking out the sd card? Also, did you have an emunand?I did an update of my sysnand to 9.2 , can when restarted , my 3ds did not work , and did not enter the recovery , now do not know exactly what to do to recover my 3ds .
told me they have a means using the raspberry pi, however, I do not have a backup of the nand .
is there any solution?