If your mobile phone microphone is not working, not detected, or stops capturing audio when used as a secondary device during your assessment, it is usually due to permission restrictions, device settings, hardware blocks, or connectivity issues. Since the secondary device may require audio capture for session and environment monitoring, microphone issues can impact exam continuity. This guide helps you identify common mobile microphone issues and explains how to fix them to ensure uninterrupted audio capture.Documentation Index
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✅ Common causes and fixes
| What might be wrong | How to fix it |
|---|---|
| Another app is using the microphone | Close all apps that may be accessing the microphone. Android: Open Recent Apps and close all background apps. iPhone: Swipe up from the bottom and close all apps, then reopen the secondary device connection link. |
| Microphone permissions are not granted | Ensure the browser or app used for the secondary device has microphone access. Android: Settings > Privacy > Permission manager > Microphone > Allow access for the browser or app being used. iPhone: Settings > Privacy & Security > Microphone > Enable access for the browser (Safari/Chrome) or app being used. |
| Browser or app microphone access is blocked | Use a supported mobile browser or the recommended camera/microphone app. Avoid using in-app browsers (for example, opening links inside Gmail, WhatsApp, or SMS apps). |
| Phone is muted or volume settings are restricted | Ensure the phone is not on silent mode or Do Not Disturb. Increase system volume and disable any sound restrictions before starting the exam. |
| Headphones or Bluetooth devices connected | Disconnect wired headphones, earphones, or Bluetooth devices, as the phone may route audio input to them instead of the built-in microphone. If required, reconnect only after confirming which microphone is active. |
| Phone locked or screen turned off | Keep the phone screen ON throughout the exam. Android: Settings > Display > Screen timeout > Set to a longer duration or “Never.” iPhone: Settings > Display & Brightness > Auto-Lock > Set to “Never” or the maximum available time. |
| Network connection is unstable | A weak or unstable network may disrupt audio streaming. Connect to a stable Wi-Fi network. Avoid switching between Wi-Fi and mobile data during the exam. |
| Microphone blocked or obstructed | Ensure the microphone opening is not covered by a phone case, dirt, or debris. Remove thick cases or covers that may block the mic. |
| OS or browser version is outdated | Update your mobile operating system to the latest version. Update your mobile browser from the App Store or Play Store to ensure compatibility. |