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Provider: Pro-Logic Technologies, Kangari Building, Nairobi
Modern smartphones contain between two and four microphones, each serving a specific purpose: the primary microphone (usually at the bottom of the phone, near the charging port) handles voice calls and voice recordings; secondary microphones at the top or rear are used for noise cancellation, stereo video recording, and video call ambient pickup. When a microphone fails, the specific symptom depends on which one has failed — and diagnosing the correct one is essential before any repair is performed.
Symptoms of Microphone Failure
- Callers cannot hear you during phone calls (primary mic fault)
- Voice recordings are silent or extremely faint
- WhatsApp voice notes record with no audio
- Video recordings have poor audio or only capture one direction of sound
- Noise cancellation stops working on calls (secondary mic fault)
- Voice assistant (Google Assistant, Siri) does not respond to your voice
Estimated Microphone Replacement Costs in Nairobi (2024–2025)
| Device Category | Parts (KES) | Labour (KES) | Total Estimate (KES) |
|---|---|---|---|
| Budget Android — primary mic | 150 – 500 | 500 – 900 | 650 – 1,400 |
| Mid-range Android — primary mic | 200 – 700 | 600 – 1,100 | 800 – 1,800 |
| Mid-range Android — secondary mic | 150 – 600 | 700 – 1,200 | 850 – 1,800 |
| Samsung Galaxy S-series mic assembly | 400 – 1,200 | 800 – 1,400 | 1,200 – 2,600 |
| iPhone primary mic (bottom) | 300 – 900 | 700 – 1,300 | 1,000 – 2,200 |
| iPhone secondary / top mic | 300 – 900 | 800 – 1,500 | 1,100 – 2,400 |
Microphones are surface-mounted components soldered to the board or to a flex cable. Primary microphone replacement is more straightforward on most devices; secondary mics near the camera module require more disassembly.
Confirming the Faulty Mic
Use the phone's built-in voice recorder app and a call test to isolate which microphone has failed before booking a repair. This saves time and ensures the correct component is replaced.
Pro-Logic Technologies at Kangari Building, Nairobi performs microphone diagnostics using multi-channel audio testing before recommending which mic assembly to replace.
