Prodinfo Gen Switch

Prodinfo gen
General
Author	CaramelDunes
Type	Payload (Binaries)
Version	1.1.0
License	GPL-2.0
Last Updated	2022/04/02
Links
Download
Website
Source

prodinfo_gen is a Nintendo Switch payload that can generate minimal, console-unique, PRODINFO files.

It can either build one from scratch or import parts of a donor PRODINFO.

It is primarily aimed at people without a backup of their PRODINFO or building a NAND from scratch.

This tool is not meant to, and will not, unban a Switch console.

Note: Use this tool at your own risk, do not overwrite a factory PRODINFO without making a backup first.

User guide

Limitations

Of course, as we do not have Nintendo's private keys, the generated files can't be perfect.

Here's what works:

	Booting	Homebrews	Amiibos	GameCards	Online
from scratch	✓	✓	✓
from donor	✓	✓	✓	✓

As such, a "from scratch" PRODINFO also acts as a more elaborate "Incognito".

How to use

If you want to use a donor PRODINFO, place it at sd:/switch/donor_prodinfo.bin.

(Note: If the donor is a patched or Mariko Switch, you will need to copy the donor's keys to sd:/switch/donor.keys.)

Launch prodinfo_gen.bin using your favorite payload injector or chainloader.

You should find sd:/switch/generated_prodinfo_from_scratch.bin or sd:/switch/generated_prodinfo_from_donor.bin depending on what you selected.

You can now write that PRODINFO to your NAND using a tool such as HacDiskMount (it is recommended to make a backup of the current PRODINFO first).

Useful links

Switch Unbricking Guide - ProdInfo Fix (PikaFix) (by Adran_Marit).

Screenshots

Media

THE PRODINFO GEN TOOL (sthetix)

Changelog

v1.1.0 2022/04/02

• Adds support for 14.0.0.
• What happened is that, until 14.0.0, on boot, the device id from fuses was compared against the one embedded in Rsa2048DeviceCertificate or EccB233DeviceCertificate. Now, Rsa2048ETicketCertificate is used instead, but prodinfo_gen didn't write the device id string there.
• Not sure why this changed, it does make the logic simpler as Rsa2048ETicketCertificate is available on every console, whereas newer consoles lack an EccB233DeviceCertificate.
• Thanks @xiaojiangGangGang, @stanz328, @lsp199308, and @laotoulyh for reporting/testing.
• Closes #24.

v1.0.1 2021/11/04

• WARNING: This does not work with firmware 14+! Please use version 1.1.0 or higher if you plan to use the generated prodinfo with a 14+ firmware.
• Based on latest Lockpick_RCM.
  • Adds support for OLED Switch (Aula).
  • Automatically dumps master keys, no need for prod.keys anymore.
  • Makes importing from donor simpler, simply copy the donor's keys to sd:/switch/donor.keys.
• Correctly sets ProductModel for OLED Switch.
• Thanks to @laotoulyh for testing and providing me with a sample.
• Closes #20.

v1.0.0 2021/11/02

• Based on latest Lockpick_RCM.
  • Adds support for OLED Switch (Aula).
  • Automatically dumps master keys, no need for prod.keys anymore.
  • Makes importing from donor simpler, simply copy the donor's keys to sd:/switch/donor.keys..
• Correctly sets ProductModel for OLED Switch.
• Thanks to @laotoulyh for the sample.
• Closes #20.

v0.3.4 2021/02/18

• Fix the ProductModel field value (#11).
  • It could cause the "Connect Joycons" screen to appear on the Switch Lite.
  • Many thanks to @henryjmin
• Personalize the console colors in the Controllers screen.

v0.3.3 2021/01/11

• Allow importing from patched and Mariko Switch PRODINFOs. Do not forget to add donor_device_key_4x to your prod.keys (see README).
• "From donor" PRODINFOs are now built like "from scratch" with additional certificate and key importing. It should lead to more reliable PRODINFOs.
• Fix 2011-0301 error when using a "from scratch" PRODINFO.
• Huge thanks to @laotoulyh, @Kronos2308, and Modificatorul for helping me test.

v0.3.2 2021/01/11

• Allow importing from patched and Mariko Switch PRODINFOs. Do not forget to add donor_device_key_4x to your prod.keys (see README).
• "From donor" PRODINFOs are now built like "from scratch" with additional certificate and key importing. It should lead to more reliable PRODINFOs.
• Fix 2011-0301 error when using a "from scratch" PRODINFO.

v0.3.1 2021/01/10

• Allow importing from patched and Mariko Switch PRODINFOs. Do not forget to add donor_device_key_4x to your prod.keys (see README).
• "From donor" PRODINFOs are now built like "from scratch" with additional certificate and key importing. It should lead to more reliable PRODINFOs.

v0.3.0 2021/01/10

• Allow importing from patched and Mariko Switch PRODINFOs. Do not forget to add donor_device_key_4x to your prod.keys (see README).
• "From donor" PRODINFOs are now built like "from scratch" with additional certificate and key importing. It should lead to more reliable PRODINFOs.

v0.2.1 2021/01/05

• Thanks, @shchmue, for the Lotus kek sources.

v0.2.0 2021/01/02

• Add Mariko support by merging changes from https://github.com/shchmue/Lockpick_RCM.
• Big thanks to Modificatorul for helping me test this version.

v0.2.0 2020/12/31

• Add Mariko support by merging changes from https://github.com/shchmue/Lockpick_RCM.

v0.1.3 2020/10/27

• Improve RandomNumber generation.

v0.1.2 2020/10/25

• Fix SslCertificateHash computation.

v0.1.1 2020/10/23

• Improve README.

v0.1.0 2020/10/23

• Feature/cal0 builder (#1)
  • Support broken eMMC.
  • Add CAL0 menu entry.
  • Working ghash and decryption of extended keys.
  • Added primitive personalization.
  • From scratch works.
  • From scratch works.
  • Cleanup.
  • Warning cleanup.
  • Read master_key_00 from prod.keys.

Credits

• This software is based on shchmue's Lockpick_RCM.
• GCM encryption primitives from Atmosphère.
• Most of the reverse engineering work comes from shchmue, PabloZaiden, SwitchBrew.

External links

• GitHub - https://github.com/CaramelDunes/prodinfo_gen
• GBAtemp - https://github.com/CaramelDunes/prodinfo_gen