Even well-chosen adapters can have issues. 以下是 the most common problems and how to fix them.
Problem 1: No Picture on TV
Possible causes and fixes:
- Adapter not fully inserted → Remove and reconnect firmly
- HDMI cable loose → Check both ends of the cable
- TV input wrong → Cycle through HDMI inputs on the TV remote
- Insufficient power → Verify you are using a 15V/2.6A+ PD charger
Problem 2: Screen Flickering or Noise
This indicates signal quality issues. Try these in order:
- Replace the HDMI cable with a shorter, higher-quality one
- Disconnect and reconnect the adapter to reset the connection
- Test with a different TV or monitor to isolate the issue
Problem 3: Battery Drains While Connected
If the Switch battery percentage drops while plugged in, the charger is not providing enough power. The adapter may be drawing some power for itself, and the remaining power is insufficient. Switch to a higher-wattage PD charger. A 45W or 60W charger is recommended.
Problem 4: Adapter Gets Very Hot
Some heat is normal, but if it is too hot to touch:
- Stop using the adapter and let it cool down
- Check for adequate ventilation around the adapter
- Ensure you are not using it in direct sunlight or a hot environment
- Consider replacing with a metal-housed adapter for better heat dissipation
Problem 5: USB Port Does Not Work
If the adapter has a USB port that does not recognize devices:
- Test the USB device directly on the Switch to confirm it works
- Try a different USB device to rule out compatibility
- If the port never works, the adapter may be defective
Summary
Most problems with compact HDMI adapters stem from insufficient power or loose connections. Work through the troubleshooting steps methodically, and if the issue persists, the adapter itself may be incompatible or defective. Buy from sellers with good return policies.