Lichii firmware is the Switch 2 system firmware installed into the emulator’s virtual system memory, next to its prod keys. The recommended version is 23.0.1, the newest one with matching prod keys; 23.0.1 is ready for when prod keys 23.0.1 arrive. Install prod keys first, because Lichii cannot read firmware without them.
Firmware 23.0.1
System files that match prod.keys v23.0.1
- Pair
- keys v23.0.1
- For Lichii
- build 117
Updated 9 November 2026.
How do you install firmware in Lichii?
- Install prod.keys with Tools > Install Decryption Keys.
- Open Tools > Install Firmware.
- Pick From ZIP and select the firmware ZIP, or From Folder and select the folder that directly holds the NCA files.
- Wait for the progress bar to finish and restart Lichii.
Where does Lichii store firmware?
Lichii writes installed firmware to its emulated NAND: %APPDATA%\eden\nand\system\Contents\registered on Windows and ~/.local/share/eden/nand/system/Contents/registered on Linux. You never need to copy files there by hand.
How do you check that the firmware installed?
The firmware installed correctly when games that stopped at a black screen now reach their menus, and when the registered folder above holds the NCA files. If the install finished but games still fail, the keys are older than the firmware.
Firmware and keys for Lichii
This page is part of Lichii prod keys and firmware, where every prod keys and firmware version for Lichii is listed with its download link. Related guides are collected under firmware versions for Lichii.