What's preventing us from booting from re-writable memory?

Discussion in '3DS - Flashcards & Custom Firmwares' started by Gleasonator, Jun 25, 2012.

  1. Gleasonator
    OP

    Gleasonator Newbie

    Newcomer
    3
    0
    Jun 7, 2007
    United States
    Hello,

    I was hoping I could get some clarification on this. I am aware that 3DS ROM loaders do not currently exist for the 3DS due to a number of technical limitations, but I'd like to know what (if anything) is preventing us from writing 3DS ROM dumps to re-writable memory chips (EEPROM, etc.) and booting from this.

    For instance, if I had a device that already interfaces with the 3DS (perhaps an existing 3DS game cartridge with it's ROM chip replaced with a re-writeable chip), and I wrote a single game image to it at a time (also wiping the save RAM each time), I should theoretically be able to boot from this as if it were an official cartridge, right? But it hasn't been done yet as far as I know, so it must not be that simple.

    If anyone could provide me with information about this I would appreciate it.

    Thanks
     
  2. Rydian

    Rydian Resident Furvert™

    Member
    27,883
    8,103
    Feb 4, 2010
    United States
    Cave Entrance, Watching Cyan Write Letters
    http://gbatemp.net/topic/325375-crown3ds-update/

    People aren't excited because there concept of making a 1:1 copy of a game cart isn't interesting to them. It means no homebrew, one game per cart unless you want to deal with long flashing sequences, no cheats or mods, etc.
     
  3. Gleasonator
    OP

    Gleasonator Newbie

    Newcomer
    3
    0
    Jun 7, 2007
    United States
    Thanks! This is what I was looking for:

    I'm interested in this because it seems like a simple (although maybe not practical) solution for making and using backups. But if writing to a chip like this is that inconvenient, I guess the amount of effort outweighs the price of just buying a new cartridge.

    Thanks!
     
  4. Foxi4

    Foxi4 On the hunt...

    pip Reporter
    23,443
    21,333
    Sep 13, 2009
    Poland
    Gaming Grotto
    The fact that not all the chips that are on the cartridge PCB are standard or even identifiable isn't helping. Making a setup like this requires through analysis of the hardware, its behaviour and possible mass-produced replacements for the custom chips or work-arounds. It CAN be done, it's just a huge undertaking.
     
  5. Ericthegreat

    Ericthegreat Not New Member

    Member
    1,796
    312
    Nov 8, 2008
    United States
    Vana'diel
    Wouldnt it still need to be signed to run?
     
  6. Rydian

    Rydian Resident Furvert™

    Member
    27,883
    8,103
    Feb 4, 2010
    United States
    Cave Entrance, Watching Cyan Write Letters
    If it's a 1:1 copy of the data on the cart, then that's already signed.
     
  7. nukeboy95

    nukeboy95 Leave luck to heaven.

    Member
    2,273
    1,085
    Aug 24, 2010
    United States
    not sure
    wait i thought it was re-writable
     
  8. Rydian

    Rydian Resident Furvert™

    Member
    27,883
    8,103
    Feb 4, 2010
    United States
    Cave Entrance, Watching Cyan Write Letters
    Supposedly (though it was never shown, they only had one game for the demo), and even then it wouldn't be like modern flash carts where you boot them up and select a file to run.
     
  9. Ace Overclocked

    Ace Overclocked My CPU's hot but my core runs cold.

    Member
    2,107
    288
    Jul 30, 2010
    Italy
    Somewhere
    people are too spoiled with current flashcarts, i wouldn't mind having a reflashable cart like the old days, too much nostalgia...
     
  10. McHaggis

    McHaggis Fackin' Troller

    Member
    1,699
    911
    Oct 24, 2008
    Losing the flashing tool was always a problem for me, so I was thrilled when micro SD solutions became available. Now, where did I put my Save Dongle...?
     
    2 people like this.
  11. pelago

    pelago Member

    Member
    956
    46
    Feb 20, 2006
    Making a 1:1 copy of a 3DS cartridge might not be as simple as some people seem to think (if it was, there would be be lots of pirate carts for sale already). Although you won't need to break encryption, there are lots of things that Nintendo can do in the cart hardware to make it extremely hard to analyse and clone.
     
  12. Rydian

    Rydian Resident Furvert™

    Member
    27,883
    8,103
    Feb 4, 2010
    United States
    Cave Entrance, Watching Cyan Write Letters
    It's relatively simple, when compared to making something like a modern flash cart from scratch for a new system, if that counts.
     
  13. SSVAV

    SSVAV Lurker in space

    Member
    199
    84
    Jan 29, 2011
    France
    Outer space
    Too complicated for the 12 year old kids who usually use the flashcards.
     
  14. nukeboy95

    nukeboy95 Leave luck to heaven.

    Member
    2,273
    1,085
    Aug 24, 2010
    United States
    not sure
    if the 3ds is this hard than what will the wii u be like