Mase Why the screen turns off when the call is turned off. Why on android goes out the screen during call

Phones from year to year evolve, becoming an increasingly complex device that has on board with a dozen all sorts of sensors. Each of them is responsible for certain functions. For example, for regulating the autowarity of the screen and its shutdown, the approximation sensor corresponds to the conversation, it is also called the light or illumination sensor. Calibration of the approximation sensor on xiaomi Redmi. Or NOTE devices will help to correct the improper operation of the sensor, which can deliver a lot of problems to the smartphone owner, for example, random clicks on the screen during a conversation. The causes of improper work may be several. If you do not help a banal restart of the device, then let's look at the reasons for the degree of their complexity.

Turn on the light sensor

Your sensor can be simply turned off. To enable it, you need to do several steps, consider on the example of Xiaomi Redmi 3S.
Open the application "Phone" (a dialer in common)
Long press on the menu
In the list that opens, select "Incoming Calls"
Then we find in the list "Sensor of the approximation" and turn it on if it is disabled

Part of Xiaomi models of such an option may not be or this function will be distinguished by the location in the menu. Unfortunately, it is impossible to give the universal path of the menu due to a wide variety of models and firmware.

Turn off "harmful" functions

The most common cause of an incorrectly operating sensor is the included "blocking in pocket" function, the meaning of which does not allow the screen when the smartphone lies in your pocket. Due to this option, the light sensor often triggers incorrectly.

This problem is relevant at all xiaomi firmwareFor some reason, the engineers do not want to correct this problem or believe that everything works as it should, however, in some users, this function does not cause problems. To turn off the lock in your pocket, you need to go to the settings, then in "Calls" and then in Inbound Calls, there you can find the slider that turns this function.

What can interfere with the sensor

One of the reasons for an incorrectly operating approximation sensor is physical interference in its work, namely a protective film or glass. For example, our employee at Xiaomi Redmi Note 3 Pro does not work this sensor approximation for this reason. If you do not have holes for the light sensor, then you need to or change the film / glass or do it hole yourself. This sensor is usually located above the screen, next to the front camera and a conversational speaker. This problem usually sin low-quality or universal films. Therefore, before buying a protective coating, be sure to check the presence of all holes.

Test and calibrate light sensor

Checking the light sensor

A rather popular solution is the sensor calibration xiaomi approximation devices. To begin with, you need to check the camera performance of the sensor, for this we type the following numbers * # * # 6484 # * # * (call button is not necessary), thanks to this combination you will be taken to the engineering menu, checked on Xiaomi Mi4 and Xiaomi Redmi 3 Pro Other ways to get there are described in our article about the engineering menu.
5 buttons on a black background will be displayed.

Click on the top right, there must be written "Single Item Test".

In the list of components, you need to find and select "Proximity Sensor", it is usually almost at the very bottom.

In the dough itself, the inscription "far" or "close" will be displayed, closing and opening the illumination sensor (for example, with a finger), the inscription must change. If this does not happen, then this module faulty.
After this text, you can try to make calibration.

Calibration of the light sensor

Consider calibration on the example smartphone Xiaomi. REDMI 3S.

Turn off completely smartphone.

Click the VOLUME + button (increasing the volume), and not releasing it, press the inclusion button. Your device must jar, after that, the buttons can be released.

You will open a menu, in 95% of cases it will be in Chinese (including Xiaomi Redmi 3S). You need to click on the "中文" button, it is in the bottom line to the right of the "Download 模式" button. After that, the menu language will be changed into English.

Click on the "PCBA TEST" button in top string And we have an engineering menu.

If the touchscreen does not work, we move using the "UP" and "DOWN" buttons to the Proximity Sensor item and go to it.

It is necessary to horizontally put the phone on a flat surface.

The light sensor should not be closed (it is better to rub it with a cloth).

Make sure that the phone does not fall bright light.

Click on the calibration button "Calibration", the sensor will be calibrated.

After the inscription "SUCCESSFULLY" appears, it means that the calibration has been successfully completed.

Now it is necessary to check the operation of this module, cover the light sensor with an opaque item, on the screen 1 should be changed by 0 and vice versa.

After that, you may need to press the "Pass" button, you will fall back to the engineering menu, click "Finish" there, then "Power Off", the phone must be turned off.

Turn on the phone and check the sensor operation. When calling the screen should go out only when you bring the phone to the ear.
On our personal experience The correct operation of the Xiaomi Redmi 3 approximation sensor was completely restored in this way.

Incorrect device firmware

If the calibration does not help, the reason for the incorrect work of the smartphone may be incorrect flashing, this applies not only to the light sensor. The problem is that new firmware incorrectly rises on a smartphone, getting the remaining garbage from old firmware. This problem concerns the update method through a regular recovery (loader). The transition to new versions should be done through FastBoot or with a reset of all settings and user data (full wipe). Of minuses this method It is worth noting that all your data and applications will be deleted, but all the garbage will be removed with them.

Other reasons

If the previous methods did not have a proper effect, then the reason for the screen can be replaced on poor quality. Unfortunately, on-screen modules for phones xiaomi. Delivered with light sensor. If you have already done the screen replacement in the service, then it is possible that despite all the convictions of the master, you just put a poor-quality screen with a bad sensor. In case, from the beginning of the purchase itself, your smartphone works incorrectly, then a simple marriage can be the reason. We advise you to contact the seller for further instructions.

We hope you helped these advice, be sure to write in the comments if this article helped you and which board helped you.

Often users mobile devices It is faced with the fact that the screen lock does not work during the conversation, which prevents involuntary pressing on the display. The problem in this case lies in the approximation sensor. There are several reasons for the incorrect work of this element of the smartphone. Now we will figure out how to enable / disable the approximation sensor on android, or configure it if necessary.

In this case, it is about a small contactless device that recognizes an approximation to a smartphone of any object. As a result of the correct operation of this function, the gadget display will automatically go out when the phone is racing to the ear. This will exclude a random press of touch buttons during a conversation (for example, ear, finger or cheek).

In addition, the approximation sensor on android allows you to significantly save the battery charge, because when the screen included during communication with another subscriber, the battery charge is intensively spent.

Enable and disable Android approximation sensor

As a rule, the sensor on the device is active by default. If in your case it is not so, or this function was somehow disabled randomly, then it is not difficult to connect it. This is done as follows: go to " Settings", We find the section" System applications ", Choose the item" Telephone»:

Then click " Incoming calls"And translate into the active position of the slider in the string" Proximity sensor"(On some gadgets will need to put a tick):

Depending on the smartphone model, the sensor activation will look somewhat different, for example, by opening the number dialing field, call the call settings menu or the " Settings", Or by clicking on the Options hardware button, and hold it. And after that, as was written above, in " Incoming challenges»Turn on the sensor:

If the question is about how to turn off the approximation sensor, then, accordingly, we go through the same way and deactivate the function (removing the check mark).

How to configure (calibrate) approximation sensor

This element is located at the top of the smartphone, usually on the left or right of the lens of the front camera:

On some Android devices models, it can be viewed and an unarmed look, on others it is quite difficult to detect it. If, during the call, remove the phone from the ear, and then get closer to frontal chamber Finger, then the display went out after this prompts the location of the sensor.

It is possible that the cause of the incorrect operation of the sensor was an elementary dipped on it. In this case, it is possible to restore the normal operation of the function. Just cleaned the device - turn off the smartphone and blow the jet of compressed air. Then you need to restart your gadget and whether the sensor performance has been recovered.

If this manipulation did not bring the desired result, you can resort to the sensor calibration, which is performed in several ways.

With the help of the system

Open " Settings", Choose the item" Special abilities "(On some devices" Screen"), We find the string" Calibration of the approximation sensor»:

Then, perform step-by-step system prompts, I look at the video:

Through the engineering menu

Via engineering menu You can check the correctness of the sensor operation, and, if necessary, calibrate it.

To do this, enter the following symbol set in the dialing field: *#*#3646633#*#* Now open the tab " Hardware Testing » (equipment testing) and press the " Sensor", Choose" Light / Proximity Sensor »(light sensor / approximation):

Choose " PS Data Collection"(Collecting the sensor data approximation);
In the next window, choose " Get One Data.»;
After the numbers appear " 0 »We apply to the approximation sensor on your smartphone Palm and re-click" Get One Data.»;

If as a result we will see the figure 255 So, our sensor functions normally.

For settings:

Choose " PS Calibration", Then" Calibration" After that, without closing the sensor, click on Calculate Min Value. After appearing at the bottom of the display of the inscription " Calculate succeed»We bring to the sensor at a distance of 2-3-centimeters a sheet of paper and click on" Calculate Max Value.", After which we left to click" Do Calibration"And restart the smartphone:

Using third-party software

If all previous ways to normalize the operation of the sensor did not help, you can use the Reset Sensor Sensor (for rutted devices).

Download and install a program from Play Market . After starting, activate the large button " Calibrate Sensor" Now hand cover the approximation sensor and click " Next»:

Next you need to remove your hand and press again " Next", and then " Calibrate."And" Confirm." The system's request provides superuser rights (root). After the actions performed, waiting for the completion of the reboot of the smartphone.

Now you know how to enable / disable / configure the approximation sensor on Android. However, if in your case the problem has not been solved, it is not excluded that the display can be calibrated or flashing the smartphone. In addition, sometimes the sensor may incorrectly work as a result of a hardware failure, then not to avoid appealing for help in service center.

Does not turn off the screen during the call on the phone? Clicks phone during a conversation? Does the touch sensor do not work when bringing the phone during a conversation to the ear? Call how you want but the problem is one and decide it here!

Why your smartphone started not to turn off the screen during a conversation, the reasons as always a lot, as it is electronics and what else. This is not a grandfather TV and no calculator and a whole computer in your pocket. In addition to the electronics of which your smartphone stuffed, there is still software The electronics responsible for the correct operation. We will talk about the program part initially, since this is the easiest method to correct this problem about which we are talking in this article. For some reason, not known reasons in your smartphone on board whose Android may arise some miracles, call it. In general, for some reason, it could simply turn off your sensor responsible for approaching the phone to your ear or head. Let's check if it is and if everything is in order, proceed to other methods of correcting this situation with the approximation sensor.

We turn on the program that is responsible for the approximation sensor.

It is very easy to enable this option and since the Android system is different, I mean the name and release number. Also, the menu may differ but not critically, if you enable logic, you will find the path before this setting, if it is of course different from the described below:
We go to the "Settings" usually the designation of the gear icon. In the settings we find the "System Applications" item. The picture below:

Going to "System Applications" find the "phone" item, it is shown in the form of a square of green with a tube, in some versions the name may be "calls", the picture below:

Included in the "phone" subparagraph and find the menu item "Incoming Calls", the picture below:

I got to the final stage where in the "Sensor of the approximation" item must be included so that the slider be with the right and caught fire the color of your smartphone menus provided it. I hope that this option will correct your KU problems with the screen disconnecting when talking, the picture below:

Another way to get to the program inclusion of the approximation sensor.
If you did not help you about which wrote above or you do not have the phone model or more precisely android systems. In this case, there is another way to go to "calls" and continue to click "Settings", it is as always as always as a gear, the picture below:

How to enter the "Settings" item in it will be another item called "Incoming Calls", it is also needed, the picture below:

In the "Incoming Calls" item, we are looking for a cherished switch that may be turned off with you and because of this and there is a not convenient situation when talking. The name of the switch "Sensor of the approximation" which should be turned on, which means it should burn with your smartphone issued to it by it.

To all the above, I can add if it did not help you not one of the options, but you found where the "Sensor of the approximation" is turned on, try to turn off the slider goes and turn on again. Such manipulations can help in some cases, it rarely happens, perhaps it is your case.

Programs for software reset and adjoint sensor settings.

If you did not help or your approximation sensor is turned on, but the situation did not give the result from the above, it happens that the "approximation sensor" menu is not at all in some models. Then I can offer you to try to reflect the settings of the "approximation sensor" as well as calibrate it. To do this, go to Google Play. And download the utility "Reset Sensor" it is called. Next, it is not difficult to figure it out as this utility is intended only to reset the settings of the "approximation sensor" and its calibration. The whole procedure will be called it so happening a few steps. Every step it will be written that you need to do, wave your palm in front of a smartphone, close the sensor and so on. If you have any questions, write in the comment below, listen and answer necessarily. Below can go to the store and get acquainted with the utility:

Consider other reasons are not software.

It is located "Sensor of the approximation" at the very top of the smartphone, to immediately understand that the user does, raised to the ear or the smartphone turn over (cool, rotate) as you want to call. Even if the phone lies on the table, the sensor is aimed at what kind of object and when you took it, turned it, the sensor it determines and causes the menu to rotate, depending on how you hold the phone, top legs or along.

If you glued a protective film on a smartphone.

If you have stuck a protective film on the phone, then it may interfere proper work Sensor. Look at how stuck it is exactly and does not interfere with the sensor. The sensor is located as wrote at the very top, the picture below:

The sensors can be located as two and one of them is the one that is needed, just alone, it is possible that the camera can work in the sensor space, we look at the model of the smartphone. I do not postpone the option with a film and check carefully, we also do not exclude the options:
Lack of RAM.
Problems with firmware.

Lack of RAM.

The shortage of RAM, not confusing with physical, can also be checked in the smartphone settings at:

Settings\u003e Applications\u003e Working.

At the very bottom after the operating applications shown on the smartphone, it will be shown how much "RAM" is used and freely, the picture below:

If the RAM is missing, it can affect any work of the smartphone as a whole and not just the "approximation sensor". Freeing memory is possible that the sensor will work as it should be supposed if the reason was in this.

Problems with firmware.

It is not uncommon that the "approximation sensor" prevents the correctly not correct firmware of your smartphone correctly. Over time, bugs begin in the firmware due to litters. Try writing a programmatically smartphone let's say utility CCleanerwhich can be downloaded in the Google store, just below the button. Also update it if there are updates, it does not interfere if it does not help the software reset to the factory settings, I wrote about this in the article Link below:

Mechanical impact (blow, fall).

Mechanical impact implies such options as a drop in the smartphone, hitting it into something (waved his hand, the bus slowed down sharply about the handrail hit), many options like you can hit the smartphone. In the smartphone as above, I wrote a "approximation sensor" and it looks like this, here too, it is necessary to judge the model, the picture below:

With this option, the problem may occur as a shift of the sensor itself or the release of the loop from the slot on the smartphone scarf. You can hardly eliminate such a malfunction of the house, and you should not climb wherever you are not at once. You do not know what you will be waiting for you when you will disassemble your smartphone, how to disassemble it and so on. Of course you can see it all on You Tube But believe me on the word that even such specialists who have seen on the video and not one then bring their smartphones and not only with this problem of the sensor.

Moisture getting inside the housing.

Moisture falling inside the smartphone is also not uncommon and with this problem, too, do not cope with yourself. In short, I will describe what happens to the phone when it is drowned. Contacts with time begin to oxidize and bad current conductivity begins or no passivity at all \u003d)))) actually with such a problem exactly call +7 950 002 35 21. Located questions and want to get a qualified and free answer on them? Write that you wanted to know on this article in the comment below and within a few minutes I will answer you.

Pretty a large number of Telephone users face a problem when during the call, the phone goes out the screenAnd nothing can be done. At this point, the buttons do not work, including the power button, the sensor does not respond to any action, and single way Return everything to normal - so that at that end they removed or put the phone.

In most cases, this problem is associated with the approximation sensor. But there may be quite a lot of problems with it.

I came across such problems, I did not particularly read about them, until there was such a problem at the very time, twice. For the first time, this problem appeared with chinese copy SAMSUNG S5. The second time with Xiaomi Mi4. No, it's not about chinese phones, I just came out that way. When I was looking for information why my screen goes out during a call, I did not find such problems with Chinese replicas. As a rule, it was factory samsung, HTC, Nokia, and rarely Sony. Mentions of the extinguished screen during the call on Chinese devices I did not find. And it was strongly embarrassed me, since many advised to flash the device, and the Chinese device is difficult to flash.

However, by turning from the forums of users of phones to technical forums, I concluded that the problem is not in the firmware, but in the approximation sensor. The approximation sensor is installed on any modern phone. Its main function, when obstacles are detected at a certain distance (the obstacle is your cheek), it disables the screen to save energy, as well as blocks the buttons so that you do during the conversation, you accidentally pressed the unnecessary buttons with cheek or fingers. After you talked, and removed the phone from the ear, the sensor discovers that there is no obstacle, and unlocks the phone for further use. This is if simple words. And when there are any problems with the sensor of the approximation, then the RED Time Call comes output, and you can not do anything.

As a rule, such problems happen for several reasons.

The first reason is the phones after repair. Non-certified centers, and many private traders, forget to wear a gum on the sensor, either put on its crooked, as a result of which, in the first version, the sensor hangs freely, and falls into the dead zones under the plastic; In the second case, the rubber band overlaps the approximation sensor. In these cases, the optimal option is to attribute the phone back to the Mount Master and make it all make it normal. You can try to disassemble yourself, but I am not a lover to disassemble the devices where there are no bolts.

The second reason lies in the non-tightly adjacent glass near the approximation sensor. As a result, the sensor "falls" to the edge of the glass, and seeing the "obstacle" blocks the system. This situation may occur at any time, starting from buying a phone, during its operation, and ending with a drop or impact. This problem was in the Chinese replica SAMSUNG S5.. I was advised to attribute to the workshop, where I sold the faucet to the corps for 1000 rubles. This is exactly what my friend did, it was with this model that this model is a frequent problem), but warned that after that the phone will not be presentable, but the screen will stop gossy during the call. The basis of the method is that the glass is pressed, the soldering iron swell plastic over it, and plastic, melting, passes on the glass. As you understand, then "Scar" will remain on the phone. I did not suit this method, and I decided to experience another, which I cost 76 rubles. I just bought a super moment. He took plastic from the packaging of the super moment, the plastic is needed in order not to absorb glue. Capped a drop of glue into cardboard from the same glue packaging. Thereafter. I touched the plastic to this drop. The plastic remains a small amount of glue. After that, I, this part of the plastic spent on the protruding rear part of the glass and pressed it. Last minute, let go and checked the phone. The phone worked fine and the screen stopped to go out during the call. All this can be seen on the video at the end of the article.

Why did I do this algorithm? Just the laws of chemistry and physics, as well as desire not to spoil appearance Devices. If I picked up paper or cardboard, then the glue would have absorbed, and I practically did not affect anything. If I had dropped to a place where the glass was departed from the housing, then the drop would leak under the glass where it could sleep or glue the inner parts, and it would be blossomed from above, even if it was small, but the pieces of glass. And this is a "blossom" from which they do not get rid of, respectively, the appearance is spoiled. Also, during the press, all the extra glue would have to go somewhere, and this is only the inside, or the top of the glass. In my version, plastic from the package took exactly so much glue as I touched. The glue took the square that was supposed to be busy. After I began to lead, the end of the glass took only so much glue as it could accommodate the area of \u200b\u200bthis glass. By analogy with water, when you deliver something under a jet from the crane, and the water begins to run through this area (of course, if you did not turn on the pressure on the whole). Therefore, the glass took exactly so much glue as they had enough on its square, and nothing superfluous.

About the third option of the ovens the screen during the call, we will talk in the next article, on example Xiaomi. MI4.

If the Android does not turn on the screen after talking or does not go out during the call when you take the ear, then look for the cause of the problem in operation. When it breaks, the device cannot correctly determine the position in space, so the screen does not light up, but the phone works.

This article is suitable for all brands producing phones on Android 9/8/7/6: Samsung, HTC, Lenovo, LG, Sony, Zte, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.

Screen problems when calling on android

The main function The approximation sensor is automatic inclusion and disabling the backlight during the conversation. This allows you to save the battery charge and eliminate the accidental press of the ear or cheek touch screen Your gadget.

If your device on android does not go out during the call, or the screen does not turn on after the conversation is complete, then the problem should be signed just in the operation of the sensor. Causes may be as follows:

Bad visibility (covered / covered protective film or cover).
Lack of RAM.
Problems with firmware.
Moisture hit.
Mechanical impact and damage to the loop or other components.

Before proceeding to the software troubleshooting methods, wipe the screen thoroughly. Special attention is paid to the upper part, where the approximation sensor is just located. If a film or glass is pasted on the display, then over time they can lose in transparency and also interfere with the sensor.

Then check the call settings - perhaps the parameters are incorrectly set, and the sensor is simply turned off. This option is not in all phones, but it is worth checking.

Open the settings and go to the "My Devices" or "Parameters" section.
On the "Calls" tab, make sure that the check mark is a check mark near the approximation sensor.

Increase

Also, make sure that the system has enough RAM to work the sensor. Open the list of applications in the settings and on the "Working" tab, see what the volume of RAM is spending. If you find a shortage, complete the work unnecessary applications.

If everything is set in the settings correctly, but the sensor does not work, make backup Important data and reset android parameters To the factory state. If after the hard reset, the problem is saved, you will have to perform flashing phone. If no software methods, including flashing, have not eliminated the problem, it is recommended to contact a service center for hardware malfunction diagnostics.

Problems with screen on android after sleeping mode

Another problem that may occur with the screen - it does not turn on after the sleep mode. It can be either black, but the phone works. If you encountered such a situation, then know that the reasons may also have software and hardware:

Lack of RAM.
Problems with firmware.
Incorrect operation of the power button.
Mechanical impact (blow, fall).
Moisture getting inside the housing.

If the phone does not turn on, but vibrates when incoming call or the commission of other actions, then the likelihood is that the problem can be eliminated without contacting the service center. Clean rAM From extra processes, having completed the work of unnecessary applications at the moment. If it does not help, make a backup of important data and reset the system settings to the factory state.