Hardware 3DS selective firmware updates?

[turnipmelody]

I have a 3DS XL with 8.1.0-12U and i'd like to update to 9.2 (since my idiot brother updated my other one to 9.5 on me)
Is there any possible way to do this without external hardware?

 

[SuperSVGA]

Maybe with 3DNUS and rxTools/PBT. That would be my best guess.

 

[turnipmelody]

How would i go about using those things? im completely new to this.

 

[SuperSVGA]

I'm not even sure it would work because the updates wouldn't be properly signed. But theoretically:
Download 9.2.0-23 with 3DNUS. Just type 9.2.0-23 and USA into the corresponding boxes for 3DNUS and click download.
Install the update .cia files to your sysNAND with rxTools or PBT.

I'd wait for someone who knows if this works before you attempt this, because I'm guessing the update files won't be properly signed and either won't work or leave you with a brick.

 

[thaikhoa]

I have a 3DS XL with 8.1.0-12U and i'd like to update to 9.2 (since my idiot brother updated my other one to 9.5 on me)
Is there any possible way to do this without external hardware?

The best way without any hassle is to use Sky3DS then load a rom with 9.2 update section in it.

 

[Monty Kensicle]

If you don't have a Gateway you can use the functionality of the their launcher.dat to get to create an emuNAND to use with rxTools.

Oh are we talking about sysNAND?

 

[turnipmelody]

If you don't have a Gateway you can use the functionality of the their launcher.dat to get to create an emuNAND to use with rxTools.

Oh are we talking about sysNAND?

I think so?
I've never used any external devices so probably??
I want to be able to use the current injecton hacking things. I was planning on a giveaway for some good pokemon, but i cant do that now.

 

[keven3477]

i need to bump this thread because I need help and i currently need to do this on a friends o3ds sysnand

p.s without cubic ninja or sky