Just spoken with Google support and they said I need to do this before they will think about sending out a replacement
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If you are having any audio, speaker, or microphone issues with your device, please follow the steps below.
Step 1: Update to the latest version of
Android OS.
Go to "Settings" > scroll down to "System" > touch About phone (or tablet) > touch System updates.
If your device is modified or rooted, revert your device to original factory image since troubleshooting steps may not work on modified/rooted devices. You can use our Nexus factory images to re-image your device.
Step 2: Remove obstructions.
Remove any cling film, stickers, covers/cases/bumpers, or anything else that can be obstructing the device.
Step 3: Enable safe mode on your device.
Ensure your device's screen is on, then press & hold the Power button.
Touch and hold the Power off option in the dialog box.
Touch OK in the following dialog to start safe mode.
To exit safe mode, turn your device off and on again.
If you discover that the issue doesn't occur while your device is in safe mode, it's likely that a third-party app or Android OS modification is causing the issue. You can start to use and narrow down your installed
apps
to try to pinpoint the specific app. When the culprit is identified, you can uninstall the app or contact the developer of the app for further support as follows:
Navigate to play.google.com.
Find the app and click on it to view its main page.
Scroll down to the "Additional
Information" section. Here, you'll see "Contact Developer" options.
Step 4: While in safe mode, turn off Bluetooth.
Go to "Settings" > under "Wireless & Networks", touch Bluetooth.
In Bluetooth settings, if Bluetooth is on, touch the slider to switch Bluetooth off.
Step 5: While in safe mode, make sure the volume is on.
Go to "Settings" > under "Device", touch Sound > touch Volumes.
In Volume settings, slide all three indicators all the way to the right to make sure all sound is on and at max volume.
Note: When each slider is adjusted, a sound will be heard.
Step 6: Check if the issue is resolved.
Play with the volume levels to hear sound.
Make a test
phone call.
Use Google Now to test your microphone.
If your issue isn't resolved, continue to the next step.
Step 7: Reset your device to factory settings.
If you're still unable to resolve the issue, or if the issue is so severe that you can't boot your device into safe mode, resetting your device to factory settings may help. Resetting your device to factory settings will erase all local data on your device. Backup of your personal local data (pictures, music and video files) is recommended.
To backup personal data on your device
To reset your device to factory settings
If your issue has been resolved, great! Let us know.
If your issue was *not* resolved and your device still experiences audio issues, call us or reply to this
email and reference that you already went through our Audio troubleshooting steps which included resetting your device to factory settings.
