First, plaese my bad english .
I bought bricked n3ds and I tryed to unbirck it but I failed:/
Seller said,it was bircked because I installing b9s, and it was sleepmode when
I should enter rudder (↑+↓+→+←+A).
So, it was bircked, and he didnt have nandbackup.
I tryed ntrboothax with my R4I sdhc...