: Combine a base game, its updates, and all downloadable content (DLC) into a single, convenient installation file.
For legal and safety reasons, it is highly recommended to dump these keys directly from your own Nintendo Switch console.
The tool will generate a file named prod.keys inside the /switch/ folder on your SD card. nsc builder keys.txt
: Split files larger than 4GB into smaller chunks to fit on FAT32-formatted SD cards.
Select Dump from SysNAND (or EmuNAND, depending on where your latest firmware is located). : Combine a base game, its updates, and
The file nsc builder keys.txt sits in a gray area of copyright law. Here are the facts:
: This is the standard tool for dumping keys from a Nintendo Switch. Run it via a payload injector to generate a file named on your SD card. Rename the File : Once you have , rename it to exactly before moving it to the Ensure Compatibility : Split files larger than 4GB into smaller
: NSC Builder cannot locate the keys.txt file. Fix : Ensure the file is in the root directory of the NSC Builder application, not inside a subfolder. Double-check the filename is exactly keys.txt (not keys.txt.txt due to Windows hiding extensions).