Phone screen turns off during a call – solutions

Table of Contents
One of the common problems with smartphones, both Android and iPhone, is the automatic screen shutdown during phone calls and/or instant messaging.
This guide provides detailed information on why the screen may turn off during calls and how to fix it.
Proximity sensor

The most common cause of this situation is the proximity sensor on your smartphone. It serves precisely this purpose: turning off the screen during a call when you hold the phone to your ear. However, this can also happen without holding it to your ear in the following cases:
- You are covering the proximity sensor with your hands
- The proximity sensor is dirty, covered by a case, cloudy, or peeling protective film
- Cracks on the glass over the proximity sensor
- A malfunction of the proximity sensor (falls, moisture, poor-quality repair with damage to the cables) can also lead to the result in question.
The proximity sensor itself is usually located at the top of the smartphone above the screen, somewhere near the front camera, but on some of the cheapest models, the front camera itself may be used instead.
Rule out the reasons described above: remove the case, make sure there is no dirt or damage on the top of the screen, and that you are not covering the sensor with your fingers.
Other options
If the options from the previous section are excluded, please consider the following possible causes and solutions:
- Try a simple reboot of your smartphone and see if the problem persists. This can work for both iPhone and Android devices—sometimes the issue is caused by a random system process crash.
- If you have an Android smartphone, check whether the problem persists in Safe Mode —it will eliminate the influence of third-party services and applications that can sometimes cause this result.
- Usually, if you briefly press the power button during a call, even with the screen off, the screen turns on.
- If the problem occurred after an OS update, the next update may fix the issue.
- Some smartphones have a proximity sensor calibration option in the engineering menu. There are also apps for this on Google Play, but use them with caution.
- As a last resort, you can try resetting your smartphone to factory settings after saving all important data to your computer or cloud storage.
If your scenario for your phone’s screen turning off spontaneously during calls is different, please describe it in detail in the comments, including any observed patterns. Perhaps we can find a solution for your situation.



















