Microphone Not Working: How We Fix This

People on calls cannot hear you. Voice messages record silence. Video recordings have no audio. A non-functioning microphone makes your phone almost useless for communication. At Pro-Logic Technologies, microphone faults are a common repair we handle with precision. Understanding Phone Microphone Setup Modern smartphones have multiple microphones &…

People on calls cannot hear you. Voice messages record silence. Video recordings have no audio. A non-functioning microphone makes your phone almost useless for communication. At Pro-Logic Technologies, microphone faults are a common repair we handle with precision.

Understanding Phone Microphone Setup

Modern smartphones have multiple microphones — typically two or three — positioned at different points on the phone body. The primary microphone is usually at the bottom near the charging port. Secondary microphones near the rear camera provide noise cancellation and ambient recording. Knowing which microphone is failing helps direct the repair precisely.

Common Causes

• Debris blocking the microphone port — tiny holes on the phone body covering the microphone can become clogged with dust, lint, and debris, muffling or completely blocking sound capture.
• Moisture damage — even light moisture exposure can damage the microphone component, which is very sensitive.
• Physical impact damage — a drop can physically dislodge or damage the microphone.
• Software routing fault — OS bugs can cause the wrong microphone to be selected, or the microphone to be muted at a system level.
• Connector fault — the microphone's ribbon cable connection to the motherboard can work loose.

Step 1: Testing Specific Microphones

We test each microphone individually using different apps and call types. Recording a voice memo tests the primary mic. A video call tests primary and noise-cancellation mics. A speakerphone call tests differently from a regular call. This pattern of testing identifies exactly which microphone is affected.

Step 2: Port Cleaning

We clean microphone ports carefully with appropriate tools. Debris obstruction is a surprisingly common cause of microphone issues that is fully resolved by cleaning.

Step 3: Software Check

We check for app permissions, OS audio settings, and any third-party apps that may be interfering with microphone access.

Step 4: Microphone Replacement

If the microphone component itself is damaged, we replace it. On most phones, the microphone is part of a flex cable assembly that also contains the charging port, making combined replacement an efficient repair.

A silent microphone cuts you off from everyone. Get it repaired today at Pro-Logic Technologies.

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