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Proximity Sensor Repair Service in Nairobi
The proximity sensor in a smartphone detects when the device is held against your face during a call and automatically turns off the display to prevent accidental touches. When this sensor malfunctions, the consequences are immediately disruptive: the screen stays on during calls, your cheek triggers unintended key presses — muting calls, activating speakerphone, or even ending calls mid-conversation. Alternatively, a faulty sensor may keep the screen dark throughout a call, making it impossible to access the keypad or end the call without pressing the power button.
Proximity sensor faults are not always hardware failures. A screen protector that extends too far up the screen and covers the sensor is one of the most common causes of proximity sensor malfunction — and the fix is simply trimming or replacing the screen protector. Accumulated dust on the sensor window can also impair detection. These are zero-cost or minimal-cost fixes that do not involve any component work.
For genuine hardware faults — a sensor that fails diagnostic tests even with the screen protector removed and the sensor surface clean — Prologic Technologies on Luthuli Avenue will assess whether the fault lies in the sensor component itself, the flex cable connecting it to the motherboard, or the proximity sensor processing in the device software.
Software-based proximity sensor faults often follow operating system updates and can be resolved through sensor calibration or firmware repair. Hardware faults require either flex cable repair or sensor component replacement.
All major brands are serviced. The Luthuli Avenue shop is open for walk-in proximity sensor diagnostics on any day of the week.
Luthuli Avenue, Nairobi CBD 0723 763 173
