Tutorial  Updated

How to dump Cartridges on Firmwares above 3.0.0 with Homebrew Launcher

I don't take any credit for this, but I think some people here don't know about this (I didn't know about it), this is from the official yuzu discord that you can find here: https://discord.gg/u77vRWY
Source: https://github.com/MCMrARM/switch-game-card-dumper
Download: https://cdn.discordapp.com/attachments/402241866935828490/451038911737626624/swupdatedumper.nro
GBATEMP Upload: https://gbatemp.net/download/swupdatedumper-nro.34397/
  1. I'm assuming you already have access to the Homebrew Launcher.
  2. Put the swupdatedumper.nro in SD:\switch
  3. Boot into CFW.
  4. https://imgur.com/a/OLw2irt
  5. Open Album (which will open up Homebrew Launcher)
  6. Launch the swupdatedumper.nro
  7. Dump Partition 2 (this will take while depending on how big the game is)
  8. Now get the SD and navigate to SD:\dump_2
  9. In that folder, you'll find all the necessary files.
  10. Copy all the contents of dump_2 paste them into a directory of your choice.
  11. The next part is IF the dump comes in multiple files with the extensions .nca.0x (x can be any number starting at 0), if it doesn't come in multiple files skip to "Now extract/decrypt with Hactool." part.
  12. [Now you'll need to merge the .00, .01 and the .02 files.
  13. make a .bat file and type in;
  14. copy /b X.nca.00 + X.nca.01 + X.nca.02
  15. Replace the X with the name of your .00, .01, .02 files for example;
  16. copy /b 08c1d23a902a841b497f7be217c8ad6d.nca.00 + 08c1d23a902a841b497f7be217c8ad6d.nca.01 + 08c1d23a902a841b497f7be217c8ad6d.nca.02
  17. the output file will be the X.nca.00 file.
  18. Rename output file to X.nca. ]
  19. Now extract/decrypt with Hactool.
  20. run "hactool --exefsdir=output --romfs=output/game.romfs NCA"
  21. NCA is the path to your X.nca
  22. And now you'll have a bootable game dump!
https://pastebin.com/GszQ6zR9

Good Luck ^^
there is nothing you can do, with those dumps for now, except running some games in yuzu (with 2 fps lmao)

Normally you will get an error about invalid nca file header and this is because the nca is encrypted and you have to add a keyfile with Nintendo Switch keys.
You have to search a bit on google to find them and after you created you file you can add it to your command like this:
-k "yourkeyfile.extension"
Example:
hactool -k "keys.dat" --exefsdir=output --romfs=output/game.romfs "e0d36953372443ccd6582f4ca5d3351e.nca"

here is a sample: https://gist.github.com/nicoboss/967cd250d3969e1c4610c54e3186193b (just hashes of the keys, a little hint, you can search the hashes on google, if you find a key you should search that key in google and with some luck you should get to a big collection of keys....)
In the file are spaces and lines starting with a semicolon (';') ignored.
 
Last edited by Gnarmagon,
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I get "Invalid NCA header!".
jheYkpI.png


The game I'm trying to extract is Super Bomberman R.
 

Ursula

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Is there a way to dump in .xci format, i wanna extract cert for inject in to roms with the tool XCI explorer
 

Gnarmagon

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Last edited by Gnarmagon,
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Gnarmagon

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These backups can't yet be played right?
yep sherlock,
you can't play them correctly without crashes until aprox. 2 years (it takes some time after atmosphere is released to fix bugs and get everything running stable, best example is luma3ds which crashed tons of times for me in the past while I was playin new super mario bros 2)

Edit: you did read my post ?
there is nothing you can do, with those dumps for now, except running some games in yuzu (with 2 fps lmao)
 
Last edited by Gnarmagon,

MadonnaProject

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yep sherlock,
you can't play them correctly without crashes until aprox. 2 years (it takes some time after atmosphere is released to fix bugs and get everything running stable, best example is luma3ds which crashed tons of times for me in the past while I was playin new super mario bros 2)

Edit: you did read my post ?

No, I skimmed the post. It was a harmless question. Also, "sherlock"? what's with the name calling? The beta male passive-aggression is really not attractive mate. Calm down, have a soy tea.

Anyways, the only reason I am responding to your post is because I think backup loading on the switch will be far sooner than 2 years.
 

Gnarmagon

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No, I skimmed the post. It was a harmless question. Also, "sherlock"? what's with the name calling? The beta male passive-aggression is really not attractive mate. Calm down, have a soy tea.

Anyways, the only reason I am responding to your post is because I think backup loading on the switch will be far sooner than 2 years.
I didn't meant sherlock as an insult, was just a bit annoyed that you didn't read before posting :d
 

Zumoly

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Now that is interesting!
If yuzu can run backups, it might be worth checking how it does that so that we can replicate it using a homebrew.
 

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