Controller Firmware Update - N-sl Wireless

Feature Specification: N-SL Wireless Controller Firmware Update

The n-SL wireless controller is a network device used to manage and configure wireless access points (APs) in a network. Regular firmware updates are essential to ensure the controller remains secure, efficient, and compatible with the latest wireless standards and features. This write-up provides a step-by-step guide on how to update the firmware of an n-SL wireless controller.

System Settings

While third-party support varies, you should first try the standard Nintendo Switch update process to see if the console recognizes the controller's internal software: Navigate to from the Home Menu. Scroll down to Controllers and Sensors . Select Update Controllers . n-sl wireless controller firmware update

Summary

Switch System Settings → Controllers and Sensors → Update Controllers

Some newer N-SL clones support OTA updates via the . This only works for official Nintendo controllers, but some third-party chips fake this feature. Worth a try, but don’t count on it. Install the N-SL Companion App from Google Play

  1. Install the N-SL Companion App from Google Play or the Apple App Store.
  2. Pair your controller via Bluetooth to the mobile device.
  3. In the app, go to Settings > Device Info > Firmware Update.
  4. The app downloads the update to your phone first, then transfers it to the controller over Bluetooth. Keep the phone within 1 meter of the controller.
  5. Tap “Start Update.” The controller LEDs will flash rapidly. Do not switch apps or lock the screen.
  6. After ~2 minutes, the controller will vibrate twice to indicate success.
  7. Remove the device from Bluetooth settings and re-pair.