When the proximity sensor on your Xiaomi 15 Ultra is not working during calls, the screen may stay on while you are talking. This can lead to accidental touches, muted calls, or calls ending unexpectedly. The problem is usually related to settings, calibration issues, or temporary software glitches, and most of the time, it can be fixed without professional repair.
Why Your Xiaomi 15 Ultra Proximity Sensor Is Not Working
- The proximity sensor is disabled or misconfigured in system settings.
- Screen protectors or cases are blocking the sensor area.
- The sensor needs recalibration after a software update.
- Temporary system glitches affecting call behavior.
- Cached data or background apps interfering with sensor detection.
1. Check for Screen Protectors or Cases
The proximity sensor sits near the front camera and earpiece area. If anything blocks it, the phone cannot detect when your face is close during calls.
Remove the screen protector and phone case temporarily.
Make a test call and bring the phone close to your ear.
If the screen turns off, the accessory was causing the issue.
2. Restart the Phone
A restart clears temporary system processes that may interfere with sensors. This is often enough to restore normal behavior during calls.
Press and hold the Power key, and then tap Restart.
Wait for the phone to boot up completely.
Make a call and check if the screen turns off near your ear.
3. Enable Proximity Sensor Settings
Some Xiaomi devices allow sensor behavior to be controlled through system options. If the feature is disabled, the sensor will not work correctly during calls.
Open Settings, and then tap Apps.
Tap System app settings, and then tap Phone.
Make sure proximity sensor options are enabled if available.
4. Calibrate the Proximity Sensor
Calibration helps the phone relearn how close objects are during calls. This is especially useful after updates or system changes.
Open the Phone app, and then dial ##6484##.
Tap Proximity sensor, and then follow the on-screen calibration steps.
Restart the phone once calibration is complete.
5. Clear the Phone App Cache
Corrupted cache data can affect call behavior and sensor responses. Clearing it does not delete call logs or personal data.
Open Settings, and then tap Apps.
Tap Manage apps, and then tap Phone.
Tap Clear data, and then select Clear cache.
6. Update the System Software
Software bugs can affect sensor performance, especially if you are running an older version. Updates often include fixes for call and sensor issues.
Open Settings, and then tap About phone.
Tap System update, and then check for available updates.
Install the update if one is available, and test the sensor again.
Once the proximity sensor on your Xiaomi 15 Ultra is working properly, the screen should turn off automatically during calls, preventing accidental touches. Most issues are caused by blocked sensors or minor software problems, and these fixes usually resolve the issue quickly.
FAQs
Why does my screen stay on during calls even when the phone is near my ear?
This usually happens when the proximity sensor is blocked by a screen protector or is not calibrated properly. Removing accessories or recalibrating the sensor often fixes it.
Is proximity sensor calibration safe to do?
Yes. Calibration only resets how the sensor detects distance and does not affect your data or phone performance.
Can a software update break the proximity sensor?
Yes. Some updates may temporarily affect sensor behavior. Installing the latest update or restarting the phone usually resolves the issue.
