Ok, now I've got otp.bin, soft 9.2.0-20e and installed hombrew menu. The problem is now withpoint: Do Part 4 - 2.1.0 Downgrade (Section II - Injecting FBI Only)
2. Open Decrypt9 (This can sometimes take a few tries), then go to "EmuNAND Options", then "Miscellaneous...", then select the "Health...