If people cannot hear you on your Android G3 mobile phone, troubleshoot the issue to find out why. It's possible to resolve some software issues — such as an application interfering with the microphone — with basic troubleshooting. If the hearing problem is related to a hardware issue, your troubleshooting options are limited.
Check your Android G3's sound settings if people cannot hear you. Ensure the phone's microphone is not muted. If it is muted, the microphone indicator on the phone's screen will have a slash mark through it. After unmuting the phone, make sure the volume settings are high enough for callers to hear you. You can adjust the settings using the volume buttons on the side of the phone.
Soft reset the Android G3 if the audio issue continues. When you soft reset the G3, none of the phone's settings or data are affected. A soft reset stops all of the functions on the phone and possibly prevents whatever issue is the culprit. Remove the phone's battery while the phone is still on to soft reset it. Put the battery back into the phone after one minute. Turn on the phone and make a test call.
If the issue continues, hard reset your Android G3. The hard reset erases all of the phone's data and sets all of the settings to default. Backup your G3 phone before resetting it. Open the settings menu from the expanded home screen and tap “Security.” Tap “Factory Data Reset” and follow the prompts to hard reset the G3 phone. The phone will restart when finished.
Ensure that the Android G3's Bluetooth is not connected. Tap Menu," and then tap "Settings." Tap "Wireless Controls" and un-check the "Bluetooth" field to turn off the feature. Also ensure the phone's microphone is not blocked with any debris. You can use a soft cloth to wipe the microphone. Do not insert anything in the microphone or expose it to any liquids. Doing so could lead to further damaging the phone.
Contact your Android G3 mobile service provider if the sound issue persists. The issue is most likely related to a hardware problem. In this case, the phone will need to be repaired or replaced. If the phone's problem is not related to user misuse such as water damage, it is usually replaced at no charge. Your service provider can provide information on replacing the phone under its warranty or mobile insurance.