[SOLVED] I was following the tutorial of plaitect of arm9. Everything workd perfect -Downgrade 2.1 - Installed Arm9 - Restored sysnand to 9.2 (deleted the folder 0000008f) Turned on fine. However when I injected the FBI_inject_with_banner.app in sysnand and reboot my 3ds dont turn on. It is not a bricked like the screen is black, it turn the blue light of power (it is a old 3ds) and in less of a second it turn off. What I tried so far. - Turn without SD - Tunr with SD - Change the battery with another 3DS. I cant acess hourglass holding start after power on cause it shutdown immediatly. Any tips would be really welcome. Thanks. [EDIT] Solved, thearm9loaderhax.bin was deletes when cleaning the useless files.