Full Guide Release!

https://plailect.github.io/OTP/

All regions now supported!

If you appreciate this guide and the work I put into maintaining it, I accept donations through both Bitcoin and PayPal.

If you felt like the guide helped you out then I'd really appreciate it! If I get enough I may buy a 2DS for testing hardware stuff so I don't break another N3DS.

If the guide didn't help you out then I'm really sorry about that

 

[felipejfc]

Progress has been made just recently to support booting Decrypt9 from the browser on 2.1. Testing is in progress to restore NAND backups. Initial results indicate successful NAND restores.

Huge thanks to Bilis and Gelex for being fucking amazing!

Very nice, It would be awesome if we also got in the tutorials the md5sum of everything for checking

 

[Nintendo4DSXL]

Restore done, time to reboot! *bites nails*

Has it boots?

 

[Audioboxer]

Jeeez I bricked it. As in me, not my 3DS Black screen boot on reboot. Removed SDcard and...

Guessing I might need to format my sdcard (or find whatever is causing black boot screen).

 

[Nintendo4DSXL]

Jeeez I bricked it. As in me, not my 3DS Black screen boot on reboot. Removed SDcard and...

Guessing I might need to format my sdcard (or find whatever is causing black boot screen).

The only thing that prevents me from doing this is the update process after the OTP Dumping
But everything is setup only need to restore the NAND.bin

 

[felipejfc]

The only thing that prevents me from doing this is the update process after the OTP Dumping
But everything is setup only need to restore the NAND.bin

I bet that later today or tomorrow we will have a cleaner way to upgrade back.

 

[Audioboxer]

The only thing that prevents me from doing this is the update process after the OTP Dumping
But everything is setup only need to restore the NAND.bin

From posts above it sounds like the devs will have figured out a 2.1 sysnand restore via browser fairly soon.

--------------------- MERGED ---------------------------

Ahh I think it's the fact my SDcard is 128GB. It won't work at all. Even a clean format partitioned in FAT32. Guessing this low a FW didn't support cards this size.

--------------------- MERGED ---------------------------

Yeah it's the 128GB card. 4GB card works fine.

By the way when it says wait for the flashes, is it just when the bottom screen goes crazy with flickering?

 

[dark_samus3]

I bet that later today or tomorrow we will have a cleaner way to upgrade back.

We have it right now, we just got Decrypt9 booting from 2.x browser, I restored my NAND from 2.1 to 9.2 and have a working console ( I have a hardmod, but it was uneeded)

 

[FONZD]

That would be awesome. If you could, please test these 2 things:
- does the web browser open while on 2.1E?
- does the n3ds brick on 8.1? If it doesn't, does the web browser still work?
Also, if you have a cartridge which updates to 4.x or 6.x test that too before 8.1.

upgraded with Pokemon Y to 6.1.0-4E and successfully launched decrypt9 launcher.dat from the browser

Jeeez I bricked it. As in me, not my 3DS Black screen boot on reboot. Removed SDcard and...

Guessing I might need to format my sdcard (or find whatever is causing black boot screen).

Same for me but i have just delete the 'exdata' folder to fix this

 

[Audioboxer]

We have it right now, we just got Decrypt9 booting from 2.x browser, I restored my NAND from 2.1 to 9.2 and have a working console ( I have a hardmod, but it was uneeded)

Great news.

My dumped a9f.bin file is 256 bytes, does this sound good everyone? I left the 3DS bottom screen flashing for a few minutes before closing the browser.

Just to reiterate as I said above, my samsung 128GB would not work on 2.1, and is obviously what caused my first boot to fail. Using Nintendos 4GB card just now.

upgraded with Pokemon Y to 6.1.0-4E and successfully launched decrypt9 launcher.dat from the browser


Same for me but i have just delete the 'exdata' folder to fix this

That may have been an issue as well, but my 128GB card is not working regardless. Even reformatted it to fat 32, nope.

 

[mashers]

Sooo, I was having trouble getting sysupdater working using the 3dsx so I wanted to use the CIA. But I was then having problems getting FBI to transfer across to a new emunand after installing to sysnand. Here's what I did to get it working. Yes it's quite a lot of steps, but it involved formatting sysnand, setting up a new FBI installation, creating a new emunand and installing the sysupdater CIA.

Spoiler: Instructions inside

1. Backup sysnand, emunand and SD card
2. Boot sysnand
3. Launch hax to get to HBL
4. TinyFormat sysnand
5. Reboot and complete initial setup without linking NNID
6. Power off
7. Put SD card in computer
8. Repartition SD card to remove emunand and erase SD card
9. Copy SD card backup back to SD card EXCEPT NINTENDO 3DS FOLDER
10. Put SD card back into 3DS and boot to sysnand
11. Launch hax to get to HBL
12. Run minipasta
13. When back at sysnand, re-launch hax to get to HBL
14. Launch FBI.3dsx
15. Install FBI.cia to sysnand (destination SD)
16. Power off 3DS
17. Put SD card in computer
18. Make a new backup of the contents of the SD card
19. Put SD card back into 3DS and boot sysnand
20. Launch hax to get to HBL
21. Run minipasta
22. When back at sysnand, re-launch hax to get to HBL
23. Run EmuNAND9
24. Choose "Complete EmuNAND Setup" and follow the instructions
25. Power off 3DS
26. Put SD card back in computer
27. Restore SD card backup made in step 18
28. Put SD card back into 3DS and boot sysnand
29. Launch hax to get to HBL
30. TinyFormat sysnand
31. Reboot and complete initial setup without linking NNID
32. Launch hax to get to HBL
33. Boot CFW
34. Unwrap and run FBI
35. Install sysupdater.cia
36. Go back to home menu
37. Unwrap and run sysUpdater

Doing this allowed sysupdater (CIA version) to start installing the 2.1 downgrade CIAs

 

[noctis90210]

just aa question here, what is the benefit if im going to have my otp file?

 

[ieeat]

Wasn't able to get sysUpdater to work using HBL, but managed to get it to work w/ the cia version injected into health and safety. Now I have a n3DS on 2.1

 

[Audioboxer]

Wasn't able to get sysUpdater to work using HBL, but managed to get it to work w/ the cia version injected into health and safety. Now I have a n3DS on 2.1

Yeah as others educated me in here, sysupdater WILL NOT downgrade via HBL. Has to be CIA. I just re-done my emunand clone with FBI, rather than injecting into H&S. Glad to hear it works okay that way as well.

 

[dark_samus3]

just aa question here, what is the benefit if im going to have my otp file?

being able to install arm9loaderhax

 

[fafaffy]

Can confirm: Downgraded sysnand, rebooted, black screen (32gb micro)

Many bricks were shat

Reboot without microsd

Fuck yeah bitches!

Thanks for the guide, OP!

 

[noctis90210]

being able to install arm9loaderhax

sorry for being a noob, but what does arm9loaderhax do?

 

[dark_samus3]

sorry for being a noob, but what does arm9loaderhax do?

coldboot arm9 exploit that's basically unpatchable

 

[noctis90210]

coldboot arm9 exploit that's basically unpatchable

so does this mean a cfw on sysnand without pasta mode? cfw on sysnand upon turning on the 3ds? no need to use emunand? am i right?

 

[dark_samus3]

so does this mean a cfw on sysnand without pasta mode? cfw on sysnand upon turning on the 3ds? no need to use emunand? am i right?

basically, yeah... we'll still need something like pasta to boot sysNAND from a9lh but ReiNAND already works with it

 

[Audioboxer]

Can confirm: Downgraded sysnand, rebooted, black screen (32gb micro)

Many bricks were shat

Reboot without microsd

Fuck yeah bitches!

Thanks for the guide, OP!

Same as me, seems 32GB and 128GB cards aren't liked (unless you just had to delete your exdata folder). I thought 32GB was the upper limit for official fat32, so it probably was just your exdata.