Hacking Gateway Downgrade Question

[Sharpzz]

I have 1 3DS with 9.5 filmware and my XL at 9.2 filmware.

If I backup my system NAND on my XL, can I use it to downgrade my 3DS by any chance or downgrade it at all?

 

[Sharpzz]

Guess not from my findings. >.>

 

[Deboog]

No.