OTP Guide

Plailect · Feb 21, 2016

Guide has been updated to include updating to 10.5 as a possible fix for those failing to downgrade due to TWL_FIRM. This is because this update will remove any modified TWL_FIRM which sysUpdater has trouble dealing with.

cavolo · Feb 21, 2016

I suppose that's only if we have modified the TWL_FIRM no ?

It's really long to dump and all. And I didn't know that the xorpad will be that size haha, 1055mo, where I was thinking <10mo :')
And because I dont have Samsung nand, my 8go sdcard is a little short

e: hmm I think that there is a little error in the tuto.

In the Section 1, we have to copy all files from Section_I/Copy_To_SD_Card/
Inside, there is 3DS and Updates. And we don't use sysupdater (so the Updates folder is useless).
Then..
Section 2:

Delete any existing Updates folder on your sdcard that may be leftover from a previous downgrade.
Copy all files from New_3DS_Spider_[U/E/J]/Section_II/Copy_To_SD_Card/ to your SD card. Replace any existing files.

But in the Section_II/Copy_To_SD_Card/ there is no Updates folder. Well I think, the Updates folder is in the wrong Section. Am I right ?

Plailect · Feb 21, 2016

cavolo said:
I suppose that's only if we have modified the TWL_FIRM no ?

It's really long to dump and all. And I didn't know that the xorpad will be that size haha, 1055mo, where I was thinking <10mo :')
And because I dont have Samsung nand, my 8go sdcard is a little short

e: hmm I think that there is a little error in the tuto.

In the Section 1, we have to copy all files from Section_I/Copy_To_SD_Card/
Inside, there is 3DS and Updates. And we don't use sysupdater (so the Updates folder is useless).
Then..
Section 2:

Delete any existing Updates folder on your sdcard that may be leftover from a previous downgrade.

Copy all files from New_3DS_Spider_[U/E/J]/Section_II/Copy_To_SD_Card/ to your SD card. Replace any existing files.

But in the Section_II/Copy_To_SD_Card/ there is no Updates folder. Well I think, the Updates folder is in the wrong Section. Am I right ?

Yeah that's a typo, fixing...

cavolo · Feb 21, 2016

Ok, so I can continue :>

Plailect · Feb 21, 2016

cavolo said:
Ok, so I can continue :>

Fixed. I moved that part to before you copy the update files. Yes, just make sure you don't have any 9.2 downgrade files, then copy the Updates folder.

dkabot · Feb 21, 2016

Yeah, "modified TWL_FIRM" doesn't sound right as an explanation, my O3DS needed an upgrade to downgrade, but the only thing I did to it was a SysNand downgrade.

Plailect · Feb 21, 2016

dkabot said:
Yeah, "modified TWL_FIRM" doesn't sound right as an explanation, my O3DS needed an upgrade to downgrade, but the only thing I did to it was a SysNand downgrade.

Then it also fixes something else, but IDK what

DjoeN · Feb 21, 2016

@Plailect
Is there a way to check if the windows python script actually fixed the bricked emunand.
Asking, cause i bricked a N3DSXL by writting a so called unbricked emunand to sysnand, resulting in 2 black screens (with and without sd in it)

Hayleia · Feb 21, 2016

There is probably a problem again with the guide. I'm following the N3DS one, and it says at some point "Copy all files from New_3DS_Spider_[U/E/J]/Section_I/Copy_To_SD_Card/ to your SD card". Then, at some other point, it says "Delete any existing Updates folder on your sdcard that may be leftover from a previous downgrade". But shouldn't we delete the "updates" folder before copying the right "updates" folder (since they are both at the root of the SD card) ? So either the first instruction of Section II should be in Section I, or the "updates" folder should be in the Section II folder.

Plailect · Feb 21, 2016

DjoeN said:
@Plailect
Is there a way to check if the windows python script actually fixed the bricked emunand.
Asking, cause i bricked a N3DSXL by writting a so called unbricked emunand to sysnand, resulting in 2 black screens (with and without sd in it)

No, but you could try running the commands in the script manually and writing the NCSD yourself.

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

Hayleia said:
There is probably a problem again with the guide. I'm following the N3DS one, and it says at some point "Copy all files from New_3DS_Spider_[U/E/J]/Section_I/Copy_To_SD_Card/ to your SD card". Then, at some other point, it says "Delete any existing Updates folder on your sdcard that may be leftover from a previous downgrade". But shouldn't we delete the "updates" folder before copying the right "updates" folder (since they are both at the root of the SD card) ? So either the first instruction of Section II should be in Section I, or the "updates" folder should be in the Section II folder.

Refresh, that was fixed earlier.

Plailect · Feb 21, 2016

The OTP guide now has an abstract section detailing exactly how everything works and why we're doing what we're doing.

http://plailect.github.io/OTP/

Selver · Feb 21, 2016

jsav214 said:
Is it normal for it to fail over 10 times on step 16/17 of https://github.com/Plailect/OTP/blob/master/Old_3DS_Spider.md?
I have an o3ds and I think it fails around the same CIA and the top screen goes black and the Nintendo error ('An error has occurred...') pops up on the bottom screen.

Edit: Looks like the guide has been updated to include updating emuNAND to 10.5. This made it work for me.

I've also been having this 100% failure. Thanks for sharing that updating emuNAND to 10.5 worked for you. Will try this shortly....

Amayaforyou · Feb 21, 2016

Ok I have a few questions I would like to ask I have already dumped the otp.bin and would like to ask if someone would like to compile the 3dsx file for me also i wont to know if there is a way to get rid of arm9loaderhax after it is installed and also what I would have to use to get everything working I currently have a n3ds xl 9.2 sys 10.5 reinand with a hardmod installed so would I be able to uninstall arm9loaderhax with just restoring a backup also where could I get the files for reinand for arm9loaderhax

Selver · Feb 21, 2016

jsav214 said:
Is it normal for it to fail over 10 times on step 16/17 of https://github.com/Plailect/OTP/blob/master/Old_3DS_Spider.md?
I have an o3ds and I think it fails around the same CIA and the top screen goes black and the Nintendo error ('An error has occurred...') pops up on the bottom screen.

Edit: Looks like the guide has been updated to include updating emuNAND to 10.5. This made it work for me.

Selver said:
I've also been having this 100% failure. Thanks for sharing that updating emuNAND to 10.5 worked for you. Will try this shortly....

CONFIRMED! Thank you for the hint of this being updated in the guide.

Plailect · Feb 21, 2016

Selver said:
CONFIRMED! Thank you for the hint of this being updated in the guide.

jsav214 · Feb 21, 2016

Selver said:
CONFIRMED! Thank you for the hint of this being updated in the guide.

Awesome. I'm glad I could be of some help. Also late thanks to Plailect for everything.

Selver · Feb 21, 2016

Plailect said:

Plialect, I just wanted to share my appreciation for the very well-written guides, and for keeping those guides updated. As one who wrote a rather long diatribe on Arm9Loader's technical details (i.e., the bug), it's rather exciting to see the theory validated.

Now, to learn about BootROM extraction....

swungtwisty437 · Feb 21, 2016

Please forgive me for asking, but can somebody show me where I should look to compile my own arm9loaderhax.3dsx? I have no experience compiling software from source, but I have successfully extracted my OTP.BIN. Thanks in advance.

Plailect · Feb 21, 2016

Selver said:
Plialect, I just wanted to share my appreciation for the very well-written guides, and for keeping those guides updated. As one who wrote a rather long diatribe on Arm9Loader's technical details (i.e., the bug), it's rather exciting to see the theory validated.

Now, to learn about BootROM extraction....

Thought I recognized your name, nice write-up! We have some theories on bootrom extraction, although getting screen init is the priority right now.

Mrrraou · Feb 21, 2016

Selver said:
Now, to learn about BootROM extraction....

good luck, haha ^^ i think you seriously need it for that

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