TO CLARIFY: This restores the card to a working state after it has been bricked, in this case playing NDS roms. Once it is working again you can use the official flasher to revert it back to being able to use ntrboot. Hey all, Thanks to an oversight by the R4 team, loads of us were left with bricked r4i-B9S cards. But thanks to the help of so many people over on the thread below (I'll post the link at the end) there is now a method to unbrick the card! I've provided the files in a zip below (links to their source will be below as well). * Copy these files to your 3DS memory card * Make sure your r4i-B9S card is in the gamecard slot * Boot your 3DS holding start and select ntrboot_flasher from the chain loader * Press A at the red screen and then select "R4iSDHC family" * Press the "Restore flash" option and wait. It should read the backup and then start writing the chunks one by one (32 in total). Once it is completed, when you boot your 3DS the gamecard should show up as Touch! Bomberman Land. And that's it! You can now restore it to the B9S installer mode and back to the DS mode as normal using the official flasher from the r4i-SDHC website. Sources: Clean firmware thanks to @pandavova https://gbatemp.net/threads/r4i-b9s-flashcart-tested-and-impression.484620/page-22#post-7633078 The modified ntrboot_flasher thanks to @AngelSL https://gbatemp.net/threads/r4i-b9s-flashcart-tested-and-impression.484620/page-23#post-7633409 Forum post where this was all worked out: https://gbatemp.net/threads/r4i-b9s-flashcart-tested-and-impression.484620/ Also, special thanks to @Kitlith who was also helping to figure out the issue and @Yandere-chan who was also able to confirm the method worked I really hope this helps everyone affected by this issue and thanks to everyone who helped find a fix! I didn't find the fix, I just wanted to post an easy how-to guide on getting the card running again. Obligatory warning: As always, although this seems to work without any problems, I can't be held responsible for any damage you may do to your console and or flashcard. Do this entirely at your own risk.