Samsung Galaxy Microphone Repair Melbourne — Can't Hear Me on Calls, Muffled, Mic Not Working

"People can't hear me on calls" is one of the most common Samsung Galaxy complaints — and often the cheapest to fix. The bottom microphone sits right next to the USB-C port and accumulates pocket lint that muffles or blocks it. Before assuming the mic is broken, we clean the grill at the free diagnostic — and in many cases that restores it at no charge.

When a microphone is genuinely damaged (from a drop, water, or a previous repair), replacement is a same-day fix. Galaxy phones have multiple microphones — bottom, top, and rear — each used by different apps, which lets us pinpoint exactly which one is faulty.

How Galaxy microphones work: Samsung phones have multiple mics. The bottom mic (next to the USB-C port) handles normal handset phone calls. The top mic handles speakerphone, video calls, noise cancellation, and Bixby/voice. The rear mic (near the rear cameras) captures audio for rear-camera video. Knowing which app fails tells us which mic to fix — and lets us confirm the repair worked.

Mic grill cleaning — often the free fix: the bottom microphone grill, beside the USB-C port, accumulates compacted pocket lint that muffles or blocks your voice. We clean it with proper tools at the free diagnostic. If cleaning restores clear audio, there's no charge. Don't poke the mic hole with pins — the membrane behind it is delicate.

Bottom microphone replacement: if cleaning doesn't fix it, the bottom mic is damaged (drop or water). On many Galaxy phones the bottom mic is part of the USB-C/charging flex assembly, so replacement also refreshes the charging connector. Bottom mic replacement from $69. Same day.

Top microphone repair: the top mic handles speakerphone, video calls, and active noise cancellation. If callers can't hear you on speakerphone (but normal calls are fine), or noise cancellation is poor, the top mic is the issue. Top mic repair from $69.

Rear microphone repair: used for rear-camera video audio. If your videos have no sound (or muffled sound) but calls are fine, the rear mic is faulty. Rear mic repair from $69.

Water-damaged microphones: water in a mic causes muffled or absent audio. After water exposure, a mic may need replacement once the phone is assessed — and we recommend a board check if the phone was significantly wet (see our Samsung water damage service). Mic replacement from $69.

Software checks first: before any hardware work, we rule out software — a restart, checking no app has blocked mic access (Settings → Privacy → Permissions → Microphone), removing a case/protector covering the mic, and testing in Voice Recorder. If it's software or a blocked grill, you may not need a paid repair at all. We're honest about that.

Our workshop is at Shop G69, 250 Somerton Road, Roxburgh Park. Open 7 days, 9am–5pm.

Ready to get started?

Walk in any time — no appointment needed. Free diagnostic (we try the free grill clean and software check first). 6-month warranty. (03) 8339 0014 · Shop G69, 250 Somerton Rd, Roxburgh Park.