Start with evidence
Run the tests that separate the likely branches
Decision table
What the observation changes
ObservationWhat it meansNext action
Controller appears and buttons respond in DeviceOKBasic host/browser Gamepad input is working.Troubleshoot the game/launcher mapping rather than replacing the controller.
Works over USB but not BluetoothController input hardware is partly proven.Focus on Bluetooth pairing/host radio state.
Fails over USB and Bluetooth on multiple hostsBroader controller/power issue is more likely.Charge/reset per Nintendo guidance and use support if unresolved.
Sequence
Work from reversible checks to escalation
- 01
Charge the controller.
- 02
Compare USB-C and Bluetooth.
- 03
Run raw button/stick tests.
- 04
Then check the specific game/Steam mapping.
Likely areas
Keep these branches separate
USB cable/pathBluetooth pairingOS controller mappingBrowser Gamepad supportController hardware
Repair boundary
When to stop changing settings
Use Nintendo support if the controller remains unavailable on multiple known-good hosts/connection modes.