Sigpatches (Signature Patches) allow your custom firmware (CFW) to install and run unofficial NSP files. If your sigpatches are outdated—even if your firmware is current—the installer won't be able to verify the NCA types within the NSP.
If you’ve been managing your digital library on a modded console, you’ve likely encountered a specific, frustrating error message while trying to install or update a game: the nsp file is missing a programtype nca upd
The file was interrupted during download or transfer. you’ve likely encountered a specific
Your console doesn't have the "permission slips" to read the file. the nsp file is missing a programtype nca upd
