Homebrew Clarification Thread - What is going on?

[Tescowiec]

Any idea what will happen with The Binding of Isaac on N3DS after downgrading? AFAIK it needs higher FW version than 9.2.

 

[Orkna]

Any idea what will happen with The Binding of Isaac on N3DS after downgrading? AFAIK it needs higher FW version than 9.2.

emuNAND at 9.5. No problem.
Else spoof higher firmware.

 

[Syphurith]

Your quote is kinda weird ^^'
Didn't someone calculated this before ? And isn't the ARM9 entrypoint written somewhere in the FIRM header ?

Yes that is. Entrypoint is 0x08068000 IIRC, but your code must go over the FIRM1 (which decrypted to be garbage).
And BL instruction itself has some certain bits, so you might be able to calculate this possibility.
I wanna know how poor the brave is for the arm9loaderhax - to some extent.
UPDATE: @Mrrraou WHAT? ARM instruction: 1/16=all conditions, or 1/256=a pure BL to whatever. 1/8=any B variants.
Thumb instruction: 1/32=pure BL to whatever, 1/32=pure B to whatever. Just ignore BX this time (1/1024, and Register?)
Though the possibility looks not so bad, considering the possibility to decrypt the first 4/2 bytes to a good jump,
That would not differs much between consoles (decrypted FIRMs are similar) but that does surely not the same to this average calculation.
Even you can try it cause it is decrypted using your key supplied. Any failed try on 3ds would lead to a reboot. (So i choose to go to bed)
UPDATE:@Mrrraou I forgot to mention. The decrypted FIRM0 and FIRM1 must be started with "46 49 52 4D 00 00 00 00" that is "FIRM" and 4 00s.

 

[Tescowiec]

emuNAND at 9.5. No problem.

I'm highly concerned that it needs even higher fw than 9.5. And I meant what will happen to already installed game.

 

[Orkna]

I'm highly concerned that it needs even higher fw than 9.5. And I meant what will happen to already installed game.

My N3DSes run fw 9.0.0 and 9.2.0 with emunand at 9.5.0. It runs without problems but that may depend on the source. What will happen to your current installed game I don't know.

 

[TinchoX]

My N3DSes run fw 9.0.0 and 9.2.0 with emunand at 9.5.0. It runs without problems but that may depend on the source. What will happen to your current installed game I don't know.

Wish I was so lucky when I got my N3DS, it came with Firmware 9.4

 

[anonymoose]

I'm highly concerned that it needs even higher fw than 9.5. And I meant what will happen to already installed game.

you might need a cryptofixed version of the binding of isaac

 

[reymas101]

Noob Question- I have a N3ds version 10.3 so I know I can get memchunkhax2, but i don't know how kernel exploits work. I also have an O3ds running 10.1 but I read that snshax won't work on it. Am I out of luck?

 

[PixelTheKWolf]

Noob Question- I have a N3ds version 10.3 so I know I can get memchunkhax2, but i don't know how kernel exploits work. I also have an O3ds running 10.1 but I read that snshax won't work on it. Am I out of luck?

Memchunkhax will work on both the N3ds and O3ds, if i recall correctly.

 

[MasterLel]

Noob Question- I have a N3ds version 10.3 so I know I can get memchunkhax2, but i don't know how kernel exploits work. I also have an O3ds running 10.1 but I read that snshax won't work on it. Am I out of luck?

You first said "I know I can get memchunkhax2" and then "Am I out of luck?" ... It doesn't makes any sense since memchunckhax2 works for any console, any firmware...

N3DS 10.3 -> memchunkhax2
O3DS 10.1 -> memchunckhax2 OR snshax patched for o3ds
O3DS 10.3 -> memchunckhax2
N3DS 10.1 -> memchunckhax2 OR snshax

as you can see, the best solution is to use memchunckhax2

 

[reymas101]

Memchunkhax will work on both the N3ds and O3ds, if i recall correctly.

Thanks. I seem to have misread it.

 

[BurningDesire]

@JustPingo Will your hack use memchunkhax to downgrade and work above 10.2 on the N3DS?

 

[reymas101]

You first said "I know I can get memchunkhax2" and then "Am I out of luck?" ... It doesn't makes any sense since memchunckhax2 works for any console, any firmware...

Sorry, I misread it.

 

[PixelTheKWolf]

Thanks. I seem to have misread it.

No problem, i did the same. i read over it a few times to finally understand.

 

[UnknownUS3R]

hi! will i lose my data like eshop games, saves or streetpass data if i downgrade from 10.3 to 9.2 with memchunkhax2?

 

[Miguel Padrão]

I am sorry but I'm kind of a complete noob... Is memchunckhax 2 already released? If not, could you kindly provide an ETA? Today? Tomorrow? Next week? I would be most grateful

 

[damos1212]

http://gbatemp.net/threads/clarification-thread-what-is-going-on.407074

 

[Mrrraou]

I am sorry but I'm kind of a complete noob... Is memchunckhax 2 already released? If not, could you kindly provide an ETA? Today? Tomorrow? Next week? I would be most grateful

Please read the OP. It's in the FAQ.

 

[MasterLel]

I am sorry but I'm kind of a complete noob... Is memchunckhax 2 already released? If not, could you kindly provide an ETA? Today? Tomorrow? Next week? I would be most grateful

Not released yet, No ETA, not today, probably not tommorow, maybe next week

 

[Coleman_C18]

I am sorry but I'm kind of a complete noob... Is memchunckhax 2 already released? If not, could you kindly provide an ETA? Today? Tomorrow? Next week? I would be most grateful

Its not out yet, and there is no ETA.