The latest firmware for the Nauti-Control N2K Wireless and ST Wireless controllers, with the release notes and download files for every version.
How to Update
- Controller on v3.4 or newer: you don’t need anything on this page. Open Firmware update in the Nauti-Control app and it installs the latest release over Bluetooth or Wi-Fi.
- Controller on v3.0 to v3.3: update once from the controller’s own web page (192.168.1.1, Update page), filesystem first, then the firmware package:
- Under FileSystem Update, upload filesystem-v3.4.0.bin. If the page says “Upload error!” at 100%, the upload still worked: don’t upload it again.
- Wait a minute and reload the page. The firmware button now reads Select Release Package (.zip).
- Upload the release package for your controller: nauti-firmware-v3.4.0-n2k.zip for N2K Wireless or nauti-firmware-v3.4.0-seatalk.zip for ST Wireless. Wait a minute and reload: both versions should read v3.4.0.
Your settings are kept. Use an up-to-date browser (a recent Chrome, Edge, Firefox or Safari; iOS 16.4 or later on iPhone and iPad): the new Update page opens the release package inside the browser, and an older one shows “This browser cannot read compressed zip entries”.
- Controller below v3.0, or you can’t reach its web page: use the USB Firmware Flasher in Google Chrome. This resets the controller to factory settings.
Which File Is Which
- Release package (
nauti-firmware-vX.Y.Z-n2k.zip/-seatalk.zip): the signed firmware for one controller type, for the controller’s web Update page. - Filesystem image (
filesystem-vX.Y.Z.bin): the controller’s web pages; the same for both controller types. - Complete USB image (
…-complete.bin): for the USB Firmware Flasher only. It resets the controller’s settings.
Each file’s SHA-256 is listed so you can check a download.
Releases
Firmware 3.4.0
Current stable
Released November 3, 2026
Route following, navigation and SeaTalk data over Wi-Fi, and safer firmware updates from the app.
- Your autopilot can follow a route from the app, with the pilot's 'Turn to waypoint?' prompts and the end of the route shown in the apps and on your watch
- Navigation over Wi-Fi as well as Bluetooth
- SeaTalk1 data and autopilot commands bridged to OpenCPN ($STALK over Wi-Fi, beta)
- Update your hub's firmware from the app, over Bluetooth or Wi-Fi
- The hub only installs firmware made for it, and refuses a damaged download
- If a new version doesn't start properly, the hub goes back to the previous one automatically
- During an update the hub pauses live data to make room, and restarts by itself if anything goes wrong
| Image | File | Size | SHA-256 |
|---|---|---|---|
| SeaTalk complete USB image | firmware-v3.4.0-seatalk-complete.bin | 4.0 MB | f63e91db9185653301bcac1323d1169a176597b5806bd8eca51ca89aaa3e5450 |
| N2K complete USB image | firmware-v3.4.0-n2k-complete.bin | 4.0 MB | 6aba85511b3ac35b58a31fe9717522958f75d50354ee5d2e62d6b8d917bfcd5a |
| Filesystem image | filesystem-v3.4.0.bin | 448.0 KB | 57e998618bae0c4cd85d0f720987553e7724ca3792285a28b4d33a44c31ae369 |
Found a bug, or something not working as expected? Email admin@nauti-control.com with your controller type (N2K or SeaTalk), your autopilot and the firmware version.