How to Fix Google Gemini App Voice Command Not Working on Phone

If Google Gemini app voice command is not working, Hey Google not activating Gemini, or Gemini not waking up when you say “Hey Google”, this issue is usually caused by microphone permission, Voice Match, language mismatch, background restriction, VPN/DNS, or app bugs. Below is a complete, human-written, high-SEO guide with clear methods and easy actions you can follow on any Android phone.

Method 1: Allow Microphone Permission for Gemini

1. Open Settings go to Apps

2. Open Gemini tap Permissions

3. Tap Microphone select Allow while using the app

4. Go back close Settings and test the mic inside the Gemini app

Method 2: Turn ON Hey Google & Retrain Voice Match

1. Open Google app tap Profile icon

2. Tap Settings open Google Assistant

3. Open Hey Google & Voice Match

4. Turn ON Hey Google

5. Tap Voice model and retrain your voice completely

6. Say “Hey Google” again and check Gemini response

Method 3: Enable Gemini Voice Features

1. Open Gemini app

2. Tap Settings

3. Turn ON Voice responses

4. Turn ON Hands-free help

5. Make sure Microphone access is enabled

Method 4: Fix Language Mismatch (Very Important)

1. Open Google app

2. Go to Settings open Google Assistant

3. Tap Languages

4. Set only English (India) or your main language

5. Remove extra languages temporarily

6. Restart phone and test voice command

Method 5: Clear Cache (No Data Loss)

1. Open Settings go to Apps

2. Open Gemini tap Storage

3. Tap Clear cache

4. Repeat same steps for Google app

5. Restart phone

Method 6: Disable VPN or Private DNS

1. Turn OFF VPN if enabled

2. Open Settings go to Network & Internet

3. Open Private DNS select Automatic

4. Close Settings and test “Hey Google”

Method 7: Remove Battery & Background Restrictions

1. Open Settings go to Apps

2. Open Gemini tap Battery

3. Select Unrestricted

4. Turn OFF Battery Saver for Gemini

5. Allow Background activity

Method 8: Update Google & Gemini Apps

1. Open Play Store

2. Update Google app

3. Update Gemini app

4. Restart phone after update

Method 9: Reinstall Gemini (Last Option)

1. Uninstall Gemini app

2. Restart phone

3. Install Gemini again from Play Store

4. Open app allow all permissions

5. Set voice again and test

How to Test Properly

1. Open Gemini app

2. Tap mic icon and say a simple command

3. Say “Hey Google, what is today’s weather”
   If mic works inside app but not hands-free, the problem is Voice Match, not Gemini.

Final Conclusion

Most Google Gemini voice command not working issues are fixed by enabling Microphone permission, turning ON Hey Google, correcting language settings, or disabling VPN/DNS. Once these are fixed, Hey Google Gemini will wake up and respond normally.