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nxfw

Tool to download Nintendo Switch firmware updates directly from CDN

Preparations

Dump your prod.keys and PRODINFO, extract DeviceID and device certificate from your PRODINFO dump.

Usage

$ nxfw /path/to/prod.keys /path/to/cert.pfx /path/to/systemVersion /path/to/output/directory DeviceId EnvironmentId
Example:
$ nxfw prod.keys cert.pfx currentVersion out 0123456789ABCDEF lp1

Disclaimer

This tool is provided AS IS with absolutely NO WARRANTY.
I am not responsible for anything if you get your device certificate super-banned. Only use this with certificates that are already banned from regular CDN access.