N-sl Wireless Controller Firmware Update ((free)) -
The tool will say “Update Success.” Unplug, reconnect to your console or PC, and test.
Restores connectivity after major Nintendo Switch system updates. n-sl wireless controller firmware update
Windows 10/11, USB-C data cable, N-SL Updater v2.0+. The tool will say “Update Success
Unlike official hardware, third-party Bluetooth controllers rely on reverse-engineered protocols to communicate with the Nintendo Switch. When Nintendo updates the console's operating system, it frequently alters these wireless protocols. reconnect to your console or PC