Homebrew [Discussion] Mount/Dump Cardridges via Powersaves Dongle

[adrifcastr]

So I don't know the exact hardware of the dongle, so I dunno if it actually can access the rom or just the saves.
But it would be really convenient to be able to just mount cardridges on the fly to access the ROM via Emulators (Citra, DesMuMe, melonDS) any opinions?

 

[XLuma]

Powersave only access the save file, otherwise I think that feature would’ve existed

 

[ghjfdtg]

Older versions can actually access the ROM but it's still unknown how the protocol encryption works. Datel worked around this by using a replay attack + xorpads.

 

[adrifcastr]

Older versions can actually access the ROM but it's still unknown how the protocol encryption works. Datel worked around this by using a replay attack + xorpads.

I mean, if the dongle can read the rom, there should be a way to be able to mount the raw data to a drive

 

[XLuma]

I mean, if the dongle can read the rom, there should be a way to be able to mount the raw data to a drive

i think the problem is the gamecart itself as you cannot write on it
You could read (like RomFS explorer on the 3ds) but not write

 

[adrifcastr]

i think the problem is the gamecart itself as you cannot write on it
You could read (like RomFS explorer on the 3ds) but not write

Ya, just mount the raw data as read only, Citra/Desmume can load encrypted roms, I mean It shouldn't be that hard to write a driver for the device that just mounts all raw data it reads to a disk drive, like HacDiskMount does w/ the switch emmc.

 

[ghjfdtg]

The problem is the protocol encryption as said. The powersaves handles nothing. You send commands to the gamecart purely in software which means you have to deal with this. Using xorpads is infeasible here since you would need xorpads as big as the ROM itself to be able to decrypt the data fully.