Hello guys, this is my first post here! I just got a MIG Switch card out of curiosity and I was tinkering with it. For those who don't know, it's used by placing XCI dumps as well as other game specific bin files in the sd card of the MIG Switch, and are obtained from the original cartridge by using an app like nxdumptool. Two of these bin files are mandatory to get the game to boot: Initial Data.bin and Certificate.bin. They stay the same for every cartridge of a specific game. Now, if you want to use an XCI dump from a shady website it's impossible to get it to work without those files. By using the Certificate.bin from another game it has no problem, but this does not count for the Initial Data.bin. So I looked for a way to obtain this Initial Data from an XCI file and read a bit of the XCI file documentation from switchbrew dot org. Here's what I understood so far: The Switch checks if the cartridge is valid by doing a challenge–response authentication on the Initial Data. The Package ID is contained both on the XCI and the Initial Data, on positions 0x110 and 0x0 respectively. The Initial Data hash is on the XCI at position 0x160. It is calculated by doing a SHA-256 hash on the full Initial Data content. So I was wondering, is there a way to to construct a functional Initial Data file starting from an XCI dump? I also tried a reverse approach by editing the Package ID in the Initial Data from another game, generating the Initial Data hash and putting it in the XCI file but is not enough to get the Switch believe it's a real game. Sorry if this may seem stupid but let me know what you think.

duckstation for Switch

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Hacking installing dumped games on hard modded switch

Thread starter drbash60
Start date Dec 10, 2018
Views 2,204
Replies 3

Status: Not open for further replies.

drbash60

Member

Newcomer

Level 1

Dec 10, 2018

I have recently dumped all my original switch games to xci. How do I install them? I have a hard modded switch with trinket installed. What do I need?
Any help would be appreciated.

Plunt

Well-Known Member

Member

Level 8

Dec 10, 2018

Only sxos can load xci files. So you either have to get an sxos licences or convert your xci files to nsp and use a different cfw

iriez

Well-Known Member

Member

Level 9

Dec 10, 2018

Use n1dus to install those xci files to your SD card or internal memory. It will convert it into a installable nsp file, so you will need 3x the space of whatever the image is. So if the image is 10gb you will need 30gb of free space as 10gb is taken by the xci, then another ~10 when it converts to nsp, then the install files from that ~10gb nsp as it installs. It will also take 2x as long as a regular nsp install as there is a conversion process.

n1dus requires you dump your keys first however. Be sure to read the pre-requisites.

https://github.com/zhaoloving/n1dus