Troubles with your Apple Watch microphone can be frustrating, especially when you rely on it for calls or voice commands. Fortunately, there are several ways you can troubleshoot and potentially fix microphone issues on your Apple Watch. Here are 12 ways to fix the microphone not working on your Apple Watch:

1. Check for Obstructions: Ensure that nothing is blocking the microphone on your Apple Watch. Look for any debris or dirt and clean it off gently with a soft, dry, lint-free cloth.

2. Restart Your Apple Watch: Press and hold the side button until you see the power-off slider, then drag the slider to turn off your Apple Watch. Once it’s off, press and hold the side button again until the Apple logo appears.

3. Unpair and Re-pair: Sometimes unpairing your Apple Watch from your iPhone and then re-pairing it can resolve microphone issues. To do this, open the Watch app on your iPhone, go to ‘My Watch’ tab > ‘All Watches’ > ‘i’ icon next to your watch > ‘Unpair Apple Watch’.

4. Check for Updates: Ensure that both your iPhone and Apple Watch are running the latest version of iOS and watchOS respectively. If not, update them.

5. Disable Bluetooth Headsets: If you have a Bluetooth headset connected, your Apple Watch might try using its microphone instead of its own. Disable the headset to make sure your watch’s mic is active.

6. Water Ejection Feature: If you have an Apple Watch Series 2 or later, you can use the water ejection feature by swiping up from the bottom of the watch face to open Control Center and tapping on the water drop icon.

7. Check Sound Settings: Make sure that Do Not Disturb or Silent Mode is not enabled under ‘Settings’ > ‘Sound & Haptics’ on your watch.

8. Reset Network Settings on iPhone: Sometimes resetting network settings can help with connectivity issues which might affect the microphone function as well.

9. Check for Physical Damage: Inspect your watch for any signs of damage which might affect its functionality, including the microphone.

10. Contact Support: If none of the above steps work, it could be a hardware issue with your watch’s microphone requiring professional support.

11. Use Voice Memos App: Test the microphone using the Voice Memos app if available on your watchOS version to record a quick memo as a test.

12. Clean Microphone Port Carefully: Use a small non-metallic brush to gently cleanse any visible openings for the microphone port but proceed with caution to avoid any damage.

Remember that if these steps do not resolve your problem with the microphone on your Apple Watch, it could be an indication of a hardware issue requiring professional service or repair.