Hacking Manually updating romfs.bin for backups

[0000ff]

Stardew was a pain to update

First extract both nsp's and rename the largest nca's as stardew.nca and update.nca

Then run the command below

hactool.exe -k keys.ini --titlekey=[insert titlekey for base] "stardew.nca" --plaintext=NCAID_PLAIN.nca

This outputs a plaintext base nca - no need for titlekey to work with it

then to merge the update to the base, using the command below or use @Assasin1990 's
Update_NCA.bat

hactool.exe -k keys.ini --titlekey=[insert titlekey for update] --basenca="NCAID_PLAIN.nca" --section1="romfs.bin" --exefsdir="exefs" "update.nca"

this will create an updated and combined romfs.bin and exefs folder. use with modplague

 

[Assasin1990]

>>i was not aware of this... any specific way of doing this?
edit - nevermind you just provided that

OFFTOPIC:

LayeredFS doesn't crash anymore when switching games (SDFiles v5, CTCaer 3.0)
just closed xenoblade (donor octo) and ran fire emblem (donor dragon quest builder) and no crash / or reboot required ... yay!

you better try this
https://gbatemp.net/threads/atmosphere-mod-plague-easy-layeredfs-app-switching-alpha.508123/

 

[HoTsHoTz79]

use my .bat you should update exefs files also , not only romfs.bin ... that's why it don't display the game ver

tried it with your .bat file... got the extracted/exefs files
updated the main.npdm file with donor title id for octopath

still shows v1.0

o well.. atleast update is applied lol

 

[HoTsHoTz79]

Stardew was a pain to update

First extract both nsp's and rename the largest nca's as stardew.nca and update.nca

Then run the command below

This outputs a plaintext base nca - no need for titlekey to work with it

then to merge the update to the base, using the command below or use @Assasin1990 's
Update_NCA.bat

this will create an updated and combined romfs.bin and exefs folder. use with your favorite layeredfs nro

outta curiosity, whats happens when you use stardew.nca instead of plain .nca

 

[0000ff]

outta curiosity, whats happens when you use stardew.nca instead of plain .nca

Section 0 and section 1 corrupted. Nothing extracts

 

[Assasin1990]

outta curiosity, whats happens when you use stardew.nca instead of plain .nca

eshop nca's i believe , needs to be converted to normal nca's ... i don't really remember

 

[kevin_1351]

eshop nca's i believe , needs to be converted to normal nca's ... i don't really remember

eshop nca's have to be decrypted first, if not you'll encounter a section 0 error.

 

[AlphaSapphire]

can someone help me find ARMS update

 

[huma_dawii]

Stardew was a pain to update

First extract both nsp's and rename the largest nca's as stardew.nca and update.nca

Then run the command below



This outputs a plaintext base nca - no need for titlekey to work with it

then to merge the update to the base, using the command below or use @Assasin1990 's
Update_NCA.bat



this will create an updated and combined romfs.bin and exefs folder. use with your favorite layeredfs nro

outta curiosity, whats happens when you use stardew.nca instead of plain .nca

Look the answer to our question about merging the .NCAs!

 

[huma_dawii]

Stardew was a pain to update

First extract both nsp's and rename the largest nca's as stardew.nca and update.nca

Then run the command below



This outputs a plaintext base nca - no need for titlekey to work with it

then to merge the update to the base, using the command below or use @Assasin1990 's
Update_NCA.bat



this will create an updated and combined romfs.bin and exefs folder. use with your favorite layeredfs nro

tried this with XC2 to merge voice DLC with gamestock and I get this

 

[0000ff]

tried this with XC2 to merge voice DLC with gamestock and I get this

View attachment 134408

The decrypted nca should still be fine.

 

[huma_dawii]

The decrypted nca should still be fine.

nothing came out of it xD or should I wait more? the HDD light on my pc is still solid red....

 

[0000ff]

nothing came out of it xD or should I wait more? the HDD light on my pc is still solid red....

It should return you to the prompt when it's finished

 

[AlphaSapphire]

I cant find ARMS update

 

[huma_dawii]

I cant find ARMS update

You don't own the game?

 

[AlphaSapphire]

I do

--------------------- MERGED ---------------------------

I cant find the update nca tho

 

[huma_dawii]

I do

--------------------- MERGED ---------------------------

I cant find the update nca tho

Go to your switch, go to settings, data management, and then check how big is your arms UPDATE..... when you do that come back

 

[AlphaSapphire]

OH OK

--------------------- MERGED ---------------------------

1GB

--------------------- MERGED ---------------------------

NEXT?

 

[huma_dawii]

OH OK

--------------------- MERGED ---------------------------

1GB

Now you will have to go to you SD on your PC, go to the folder Nintendo, then Contents, then Registered, then a bunch of folders with numbers you gotta check one by one which one is the 1GB size folder (assuming you don't have any other games with 1GB updates it should be easy to find ) then you know where the file is now you have to dump it, for that you need to follow a guide which is not very easy, and you need to make a dump of your nand etc etc.

--------------------- MERGED ---------------------------

Stardew was a pain to update

First extract both nsp's and rename the largest nca's as stardew.nca and update.nca

Then run the command below



This outputs a plaintext base nca - no need for titlekey to work with it

then to merge the update to the base, using the command below or use @Assasin1990 's
Update_NCA.bat



this will create an updated and combined romfs.bin and exefs folder. use with your favorite layeredfs nro

That command does not merge my big and second big NCA. only extracts and repacks the stock NCA and renames it to plainsomething.nca

I don't get what is that for?

I have three files, one base, two different updates.

 

[0000ff]

)

That command does not merge my big and second big NCA. only extracts and repacks the stock NCA and renames it to plainsomething.nca

I don't get what is that for?

I have three files, one base, two different updates.

Once you have the decrypted base, you can now run the command to merge with the update, using the titlekey for that update. Hactool does not let you use two titlekey, which is what would be necessary if the base wasn't decrypted.