How to Fix Proximity Sensor Issues on Nokia 5 (2017)

Cleaning the Sensor Area

• 🧼 Clean the sensor area using alcohol and an ear wax tip, avoiding water which can damage the phone.
• microfiber cloth can be used to clean the entire phone display and the top front of the phone.

Screen Protectors and Cases

• 📱 Remove any screen protector or case that might be blocking the proximity sensor or reflecting light into it.
• 💡 Testing the phone during a call or by playing a WhatsApp audio message after removal can help identify if this was the issue.

Calibration and Safe Mode Testing

• 🛠️ If official calibration settings are unavailable, try entering the service mode by dialing a specific code (though this may not always work).
• 📲 Alternatively, download a third-party app from the Play Store designed to recalibrate the proximity sensor.
• 🚫 Booting the phone into safe mode can help determine if a third-party application is interfering with the sensor's function.

Developer Options and Software Updates

• ⚙️ Access developer options by tapping the build number multiple times in the 'About phone' section.
• ⚠️ If available in developer options, look for a proximity sensor setting to lower its sensitivity.
• 🔄 Ensure your phone has the latest software updates installed, as patches may address sensor issues.
• 🔧 For persistent problems, consider reinstalling the firmware via a service center or official tools, but be cautious with data loss.