Inside Switch Nsp [exclusive] May 2026
| Offset | Size (bytes) | Description | |--------|--------------|-------------| | 0x00 | 4 | Magic ( PFS0 or HFS0 ) | | 0x04 | 4 | Number of files | | 0x08 | 8 | String table size | | 0x10 | ... | File entry table |
1. Executive Summary An NSP (Nintendo Submission Package) is the primary distribution format for Nintendo Switch digital games, updates, and DLC. It is a containerized, encrypted, and signed archive derived from the NCAP (Nintendo Content Archive) format. Unlike the XCI (cartridge image) format, NSPs are designed for digital distribution via the eShop and installation to internal storage or an SD card. This report dissects the NSP’s internal structure, cryptographic protections, metadata, and content organization. 2. Format Origin & Relationship to Other Formats | Format | Purpose | Key Difference from NSP | |--------|---------|--------------------------| | NSP | eShop digital title | No cartridge-specific headers; stored as individual files on SD/NAND | | XCI | Game card (cartridge) image | Contains ROM-specific headers, often padded; can be dumped as a single raw image | | NSZ | Compressed NSP | Uses Zstandard compression; smaller size, not official Nintendo format | inside switch nsp
extracted/ ├── 0100000000010000.Program.nca ├── 0100000000010000.Control.nca └── 0100000000010000.Logo.nca Decrypting the Program NCA: | Offset | Size (bytes) | Description |
NSPs are essentially packaged as a hierarchical file system (HFS0) inside a PFS0 (Partition File System 0) wrapper. 3. High-Level NSP Structure A standard NSP is not a single monolithic file but a directory-like structure exposed through the Nintendo Switch’s file system APIs. When viewed as a file, it appears as an HFS0 image containing: It is a containerized, encrypted, and signed archive
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My ussd codes returns to Chinese. Is there any code can modify the ussd code language?
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I have an Android and none of these work on my phone. Why?
From what I gathered….They have a hidden keyboard work around on many of the popular makes and models device because of the obvious RIL system log dumping issues(scooping up SIM card info necessary for GSM.from other people’s phones.its not against any law unless you use the info to what I consider an attack on their device)anyway. This hidden keyboard issue is kinda difficult to rewrite from a 1(on) to 0 (off). I personally use a t589. That’s I use to this day to dump RAIL sensitive logs for work. This all based on my OWN knowledge(2010 is when I began a catalog of my work). I also have rewritten the hidden keyboard issue but I’m not willing to tell how to on a public forum. It requires no root situation and the FFC protects our right to this info. But NOT its use be client side NON functional operations.(it’s the same law that protects our “no call list” but they are allowed to share and gather information about the no call list. But they can use it in NON (carrier) functional operations.)
I dunno, this problem was with me too. Though the IMEI one worked for me..
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A much appreciative endeavor. Thank you.