Homebrew ARM9Loader -- Technical Details and Discussion

[ketal]

Well, everything to install it. The rest is not. screeninits, for example, is private. it shouldn't be too hard anyway

 

[Psi-hate]

I now downgraded sucessfully and dumped my otp, but no of my sha256 matches.
The secret_sector.bin ist the key0x11, or is it the full key area?

What firmware did you downgrade to by the way? What did you use to downgrade?

 

[RednaxelaNnamtra]

What firmware did you downgrade to by the way? What did you use to downgrade?

The latest sysupdater version with the downgrade feature and the 1.0.0E cias I got pmd.

 

[Just Passing By]

Hey sorry. Noob comment coming through, but what does this allow you to do? And it's N3ds only right?

 

[Psi-hate]

I really would like to downgrade but am super reluctant as I repeatedly get fs errors on the regular sysupdater. If I used the sysupdater that deletes everything before installing the pack, will the chance of getting the fs error still be there or will the removal of all titles stop it from being declined?

 

[Shadowtrance]

I really would like to downgrade but am super reluctant as I repeatedly get fs errors on the regular sysupdater. If I used the sysupdater that deletes everything before installing the pack, will the chance of getting the fs error still be there or will the removal of all titles stop it from being declined?

Sounds like an sd card problem to be honest. I've downgraded multiple times already today and yesterday with sysupdater (various versions) with no fs errors or errors of any sort.

 

[Vappy]

Hey sorry. Noob comment coming through, but what does this allow you to do? And it's N3ds only right?

Coldboot ARM9 execution (or, CFW as soon as your 3DS starts). And no, it works for O3DS too.

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screeninits, for example, is private. it shouldn't be too hard anyway

https://www.reddit.com/r/3dshacks/comments/42nui9/arm9loaderhax/czc18gd
http://gbatemp.net/threads/lost-super-stable-3d.388046/page-2#post-6027267
The few relevant notes from people who've got it working, though they're only vague tips at best.

 

[Psi-hate]

Sounds like an sd card problem to be honest. I've downgraded multiple times already today and yesterday with sysupdater (various versions) with no fs errors or errors of any sort.

I'll use the regular sysupdater with another SD card. Hopefully that'll work.

 

[Shadowtrance]

And now I'm faced with the new issue yay! lol
SD Card IN and the power light comes on for a second then goes off, SD Card OUT and it turns on as it should but obviously does nothing except sit on black screens.
*is confused* lol

 

[Psi-hate]

And now I'm faced with the new issue yay! lol
SD Card IN and the power light comes on for a second then goes off, SD Card OUT and it turns on as it should but obviously does nothing except sit on black screens.
*is confused* lol

If you have dumped your OTP already, then I suppose reflash your NAND with your hardmod.

 

[Shadowtrance]

If you have dumped your OTP already, then I suppose reflash your NAND with your hardmod.

Exactly what I'm doing... Those results are what I'm getting AFTER already restoring 9.2 and running the arm9loaderhax installer btw.

 

[Vappy]

Those results are what I'm getting AFTER already restoring 9.2 and running the arm9loaderhax installer btw.

And after you've run the installer, you've got a brahma payload called arm9loaderhax.bin on the root of your SD card?

 

[Shadowtrance]

And after you've run the installer, you've got a brahma payload called arm9loaderhax.bin on the root of your SD card?

Nope.
Gonna try again and see what happens.

 

[MassExplosion213]

Nope.
Gonna try again and see what happens.

The arm9loaderhax.bin is YOUR payload. You provide that. Be it a CFW or whatever.

 

[Shadowtrance]

The arm9loaderhax.bin is YOUR payload. You provide that. Be it a CFW or whatever.

Noted.
That still doesn't explain the system not even turning on for more than a split second wit the sd card in after installing it. lol

 

[Vappy]

The arm9loaderhax.bin is YOUR payload. You provide that. Be it a CFW or whatever.

Right, I'm guessing that without a payload to launch, it just shuts down. Ideally you'd want one that doesn't need the screen or any input. I think patois has a basic firmlaunch example on his github.

 

[dark_samus3]

Right, I'm guessing that without a payload to launch, it just shuts down. Ideally you'd want one that doesn't need the screen or any input. I think patois has a basic firmlaunch example on his github.

Do any CFW's actually rely on the screen init stuff? What I mean is, something like Cakes, could it be launched, without modification, even if the screen inits aren't working? Based on some problems had by others I'm guessing not, but hey you never know

 

[MassExplosion213]

Do any CFW's actually rely on the screen init stuff? What I mean is, something like Cakes, could it be launched, without modification, even if the screen inits aren't working? Based on some problems had by others I'm guessing not, but hey you never know

It still works. Just no visuals. So just make it autoboot. Btw, to run any cakehax payload, extract from 0x12000 onwards.

 

[dark_samus3]

It still works. Just no visuals. So just make it autoboot. Btw, to run any cakehax payload, extract from 0x12000 onwards.

and by that you mean, take the payload, start at 0x12000 and get everything from there to the end of the file, right?

 

[MassExplosion213]

and by that you mean, take the payload, start at 0x12000 and get everything from there to the end of the file, right?

I mean to open it in a hex editor, go to offset 0x12000, and copy from there to the end of the file.