Hacking Question Game updates firmware requirements override?

[SkinZ]

Hi, when I run a XCI game like Mario Kart on 4.1.0 with SX it runs fine, but if you install a game update nsp, past a certain version number it will refuse to let you run the updated game without a firmware update.

Obviously I could just run an older version but I was wondering if there is any way around this? Someone said devmenu could override firmware requirements but devmenu doesn't work on 4.1.0 from what I have read.

I don't want to go to 5.1 firmware without burning fuses as I don't like autorcm as I often run the switch down to empty in sleep mode and don't want to wait hours to charge.

Thanks in advance

 

[Draxzelex]

You cannot as the update is most likely encrypted with the masterkey revision found on firmwares 5.X. Theoretically, you could decrypt the .NSP and reencrypt it with the lowest masterkey revision but I have not seen anyone try this nor be successful with doing so. Also the override firmware requirement in DevMenu deletes game updates only so games installed with updates with higher firmwares can return to working on lower firmwares.

 

[SkinZ]

Ok, thanks for the explanation

 

[guily6669]

TX in their FAQ said they are working on something similar which is playing a game on a lower FW than the required, but I don't know if they are even working on it and if they will ever achieve it, and even if they made it work in the future doesn't mean it would work on the updates...

 

[adrifcastr]

You cannot as the update is most likely encrypted with the masterkey revision found on firmwares 5.X. Theoretically, you could decrypt the .NSP and reencrypt it with the lowest masterkey revision but I have not seen anyone try this nor be successful with doing so. Also the override firmware requirement in DevMenu deletes game updates only so games installed with updates with higher firmwares can return to working on lower firmwares.

This is the wrongest thing I have ever heard. .NSP is a unencrypted plaintext file container. The NCA's inside are encrypted with the corresponding titlekey.

 

[Triptamine]

This is the wrongest thing I have ever heard. .NSP is a unencrypted plaintext file container. The NCA's inside are encrypted with the corresponding titlekey.

Let's keep it civil here. "Most wrong".