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The ability to make and receive calls with clear, audible audio is the most fundamental function of a mobile phone — and yet call audio problems are among the most commonly tolerated faults in Nairobi, with many users simply putting up with muffled, distorted, or one-sided call audio rather than seeking a repair. Call audio faults affect either what the caller hears from your phone, what you hear from the caller, or both simultaneously. Each direction of failure has its own set of causes and its own repair pathway.
When the person you are calling cannot hear you clearly — reporting that your voice is distant, muffled, or absent entirely — the microphone or its signal path is the likely fault. The primary call microphone, located at the bottom of the device near the charging port, handles voice capture during calls. Blockage by lint, a detached microphone flex cable, physical microphone damage, or a software audio routing fault can all cause this specific symptom. The noise-cancellation microphone near the camera may also be involved in call audio processing and can contribute to poor outgoing audio when faulty.
When you cannot hear the caller clearly — with the earpiece producing distorted, low-volume, or absent audio — the earpiece speaker or its connection is the focus. A clogged earpiece grille, a partially disconnected earpiece flex cable, or a failed earpiece speaker driver all produce this symptom.
Prologic Technologies on Luthuli Avenue diagnoses call audio faults by testing both directions of audio independently — incoming and outgoing — using call simulation tools that confirm exactly which audio path is affected before any repair begins. This ensures the correct component is addressed.
Luthuli Avenue, Nairobi CBD 0723 763 173
