The screen turning off during a call is usually due to the proximity sensor. Here's how to troubleshoot and fix this issue:
1. Initial Checks and Quick Fixes
- Restart Your Phone: This simple step can often resolve temporary software glitches.
- Clean the Proximity Sensor: The proximity sensor is usually located near the earpiece. Use a soft, dry cloth to gently clean it. Dust or debris can interfere with its functionality.
2. Potential Obstructions
- Check Your Phone Case and Screen Protector: Ensure your phone case or screen protector isn't covering or interfering with the proximity sensor. Try removing them to see if the issue resolves. Some cases are poorly designed and can inadvertently trigger the sensor.
- Screen Protector Compatibility: If you've recently applied a new screen protector, it might be the cause. Try removing it temporarily to see if the issue persists.
3. Software Solutions
- Update Your Phone's Software: Manufacturers often release updates that include bug fixes, potentially resolving sensor-related problems. Go to your phone's settings and check for software updates.
- Check Call Settings: Some phones have settings related to the proximity sensor behavior during calls. Navigate to your phone app's settings and look for options related to screen on/off during calls or proximity sensor calibration.
4. Bypassing the Proximity Sensor (Use with Caution)
- Disable Proximity Sensor (If Available): Some phones may offer an option to disable the proximity sensor entirely. However, this is generally not recommended as it will prevent the screen from turning off when held to your ear, potentially leading to accidental touches and battery drain. This option is very rarely available.
5. Temporary Workarounds
- Use an Earbud or Headset: Using a wired or Bluetooth earbud/headset will prevent the phone from needing to use the proximity sensor, as the phone won't be held to your ear.
- Use Speakerphone: Similarly, placing the call on speakerphone will avoid the issue.
6. When to Seek Professional Help
- Hardware Malfunction: If none of the above solutions work, the proximity sensor might be faulty and require repair or replacement.
- Contact a Qualified Technician: Take your phone to a reputable repair shop for diagnosis and repair.
By systematically checking these potential causes and implementing the suggested solutions, you should be able to resolve the screen-off issue during calls.