Hacking Ntrboot wont boot

[Ariesk]

When ds_ntrboot_flasher 4.0 was realeased my flashcard worked and I managed to successfully install it on my r4i-sdhc R4i v5.0 3ds, but when I try to boot SafeB9SInstaller on my o3ds v11.6.0-39u it doesn't work. Pushing select+start+x+power 3ds turns on normally and istantly goes to sleep mode because of the magnet.

 

[Joom]

I'm thinking that this cartridge isn't compatible with ntrboot. It's not on the list of supported cartridges. It's similar to this one, but notice that yours has a version number on the sticker instead of "RTS".

These are all the compatible cartridges (excluding ARDS):