Hacking How To Downgrade From 11.3 (Speculation)

MaxAbou

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Hi guys I'm Max

Now im kind of new to this whole 3ds haacking thing so if I say anything inaccurate or just plain stupid, feel free to call me out on it, just dont be too harsh

also excuse any spelling mistakes as I have a doctors appointemnt in 5 minutes and Im typing on my phone while changing my clothes

So everyone is saying that you cant downgrade on 11.3 but couldnt someone upload a bunch of 11.2 nands (New 3DS USA, New 3DS EU, etc. etc.) and people would just get decrypt 9 or hourglass 9 and restore that nand, then do the whole cfw process from the restored 11.2 nand?
 
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Hi guys I'm Max

Now im kind of new to this whole 3ds haacking thing so if I say anything inaccurate or just plain stupid, feel free to call me out on it, just dont be too harsh

also excuse any spelling mistakes as I have a doctors appointemnt in 5 minutes and Im typing on my phone while changing my clothes

So everyone is saying that you cant downgrade on 11.3 but couldnt someone upload a bunch of 11.2 nands (New 3DS USA, New 3DS EU, etc. etc.) and people would just get decrypt 9 or hourglass 9 and restore that nand, then do the whole cfw process from the restored 11.2 nand?
Nands are console specific, so this is impossible.
 

MeAndHax

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So everyone is saying that you cant downgrade on 11.3 but couldnt someone upload a bunch of 11.2 nands (New 3DS USA, New 3DS EU, etc. etc.) and people would just get decrypt 9 or hourglass 9 and restore that nand, then do the whole cfw process from the restored 11.2 nand?
bricks.jpg

Max our savior
 

FenrirWolf

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Hi guys I'm Max

Now im kind of new to this whole 3ds haacking thing so if I say anything inaccurate or just plain stupid, feel free to call me out on it, just dont be too harsh

also excuse any spelling mistakes as I have a doctors appointemnt in 5 minutes and Im typing on my phone while changing my clothes

So everyone is saying that you cant downgrade on 11.3 but couldnt someone upload a bunch of 11.2 nands (New 3DS USA, New 3DS EU, etc. etc.) and people would just get decrypt 9 or hourglass 9 and restore that nand, then do the whole cfw process from the restored 11.2 nand?
It's already addressed that this would be impossible, but I just want to further point out that if you had access to Decrypt9 then you would have zero need of downgrading in the first place.
 

squall14716

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NANDs are console specific, period. There is no getting around that.

Sighax, when implemented and released, would allow hardmod and likely the old DSiWare app+save injection + system transfer method of "downgrading" (in this case, it wouldn't be a downgrade, it's be installing sighax) again. Otherwise, there needs to be another arm11 kernel exploit, as well as another arm9 exploit. Neither of those grow on trees.
 

Kitlith

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So everyone is saying that you cant downgrade on 11.3 but couldnt someone upload a bunch of 11.2 nands (New 3DS USA, New 3DS EU, etc. etc.) and people would just get decrypt 9 or hourglass 9 and restore that nand, then do the whole cfw process from the restored 11.2 nand?
Unfortunately, if it were that easy, we would've gotten that working a long time ago. But we have to back up a little bit. If you have D9/HG9 running, you have arm9 access, and don't *need* to downgrade so that you can get arm9 to preform a ctrnand transfer, etc.

There are two ways to get access to nand w/o arm9 access, and those are dsiwarehax or a nand mod. For a long time, we could downgrade firmware partially using a known plaintext attack, letting us exploit stuff on older firmwares. The only reason this worked was because of a single version number requirement that wasn't actively updated... and finally updated with 11.3. You can't boot an 11.3 system with an 11.2 firm, but you could boot a 11.2 system with a 10.7 or so firm, letting us use old exploits.

Honestly, I've been waiting for this. I mean, come on. All it took was for a couple of bytes to be updated, and then firm downgrade wouldn't be applicable anymore. *siiiigh*

But it's finally happened. Don't update if you want anything homebrew related. Ever. That's probably the first rule of homebrew: don't update your system unless you know it's safe.
 

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