One of the most common problems in smartphones is the malfunction of the proximity sensor, which is responsible for turning off the screen when the user is on a call and approaches the device to the face. When this sensor is dirty or clogged, it can fail and degrade the user experience.
To solve this problem, it is necessary to clean the proximity sensor. This is a relatively simple task, but it requires care and attention so as not to damage the device.
Before starting, it is important to remember that cleaning the proximity sensor must be done with the device turned off and without the battery. In addition, it is recommended to use a suitable tool, such as a soft bristle brush or a cotton swab.
The first step is to locate the proximity sensor, which is usually on the top of the device, next to the front camera. With the chosen tool, make smooth, circular movements over the sensor, removing any dirt or residue that may be obstructing proper functioning.
If the dirt is very impregnated, it is possible to use a little isopropyl alcohol to help in the removal. But it's important to be careful not to apply alcohol directly to the sensor, as this could damage the device. Instead, apply alcohol to your chosen tool and clean with gentle strokes.
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After cleaning the proximity sensor, it is important to verify that the problem has been resolved. To do this, just make a call and check if the screen turns off when the device is brought close to the face. If the problem persists, it may be necessary to seek technical assistance for a more detailed assessment.
In summary, cleaning the proximity sensor is a simple task that can be done by the user himself, as long as he is careful and attentive. It is important to remember that this is only one of the possible causes of sensor failure, and that in some cases it may be necessary to perform other maintenance to resolve the problem.
