If the screen does not turn on on Android after a conversation, or it does not go out when making a call, when the gadget is brought to your ear, then you need to look for reasons in the proximity sensor. When the sensor breaks down, the phone cannot correctly determine the position in space, which is why the screen does not light up, but the device works.
This article is suitable for phones and tablets of all manufacturers of Android devices: Samsung, LG, Sony, Huawei, Xiaomi, HTC, ZTE, Fly, Alcatel and others. We are not responsible for your actions.
The main function of the proximity sensor is to automatically turn on and off the backlight during a conversation. This significantly saves battery power and prevents accidental pressing of the touch screen of your device with your cheek or ear.
When the Android gadget does not go out during a call, then the error should be looked for in the operation of the sensor. There are the following reasons:
- Mechanical impact, damage to the loop or other components.
- Ingress of moisture.
- Problems with the firmware.
- Out of RAM.
- Poor visibility (covered / covered with a cover or protective film).
Wipe the screen before proceeding with software-based troubleshooting. Here, special attention should be paid to the upper part, where the proximity sensor is located. If the display has adhered glass or film, over time they can lose their transparency, which will interfere with the sensor.
Increase
You also need to check the call settings. There is a possibility that their parameters are set incorrectly, and the sensor is simply turned off. This option is not available in all smartphones, but it still needs to be checked.
- Open the settings, go to the "Options" or "My devices" menu.
- In the "Calls" section, you need to make sure that there is a check mark next to the "Proximity sensor" line.
Increase
The user must ensure that sufficient RAM is installed in the system for the sensor to function normally. To do this, open the list of applications in the settings and in the "Running" section check how much RAM the gadget spends. If a shortage is found, we shut down unnecessary applications.
Screen goes blank on Android during a call
Problems occur with the proximity sensor in an Android device, when the screen turns off immediately when you call and turns black. It happens that the screen goes blank and does not turn on when there is an outgoing call or when answering a call.
The proximity sensor has several functions, the most important is the automatic backlight and dimming of the display during a voice call. This is done by detecting that the smartphone is positioned next to the user's face.
When the gadget approaches the ear, the sensor detects this and turns off the screen to prevent accidental disconnection of the conversation and to save battery power. When the user removes the device from his ear, the screen lights up, after which you can turn off the call or use other functions (switch the conversation to the speaker, turn on the numeric keypad, etc.).
First, you need to remove the tempered glass or film from the smartphone. In some gadget designs, they cover the sensor, which causes an erroneous detection distance. Quite often, the reason lies precisely in glass - in stores there are many low-quality, cheap products that are not reliable.
If the tempered glass is torn off, the normal functioning of the sensor can be restored. To some, this method may seem ridiculous, but just look at how many complaints there are on the Internet about problems with this sensor that arise after gluing such glass.
In some cases, the problem may be resolved by updating the software. For example, some applications facilitate sensor deregulation. In this situation, you can use a free application that will calibrate the sensor in several stages. The Proximity Sensor Reset utility can perform this function.
Working with this application is not difficult. The settings wizard will guide you through the entire process, and at the end you need to confirm the new calibration, after which the gadget will reboot. Then you should check if the calibration was effective and if the phone screen now turns off during a call.
If the warranty period of your gadget has already passed, other solutions have not yielded results, and the sensor itself is physically damaged, then you can turn off the screen off during a conversation. The screen will not turn on all the time during a call, but you can use the on-screen buttons to remove the keyboard or activate the speakerphone.
The disadvantage of this solution will be the constant conversation with the illuminated screen, which is why you can accidentally press the buttons. To disable the proximity sensor, you need to download a special Xposed Framework module. This process is performed only with root privileges, which grants administrative privileges.
Some owners of Android devices are helped by methods of cleaning the speaker mesh, if there is a motion sensor there. To do this, take a small brush and gently clean everything.
There are many questions on the Internet on the Sony Z3 Compact phone, it is on it that the screen goes blank very often when making calls. Many users can solve this problem by pressing on the upper right corner (where the sensor is located).
There are times when on the Xperia Z3, when you press hard on the top of the screen, you can hear an internal click. After that, the problem disappears.
Some gadgets have a smart processing option in the call settings. If you find it, then you can try to disable the option. In Sony phones, the screen often peels off the case, which is why a similar problem is formed. It can be solved by careful gluing.
In the settings, you can turn off the incall ui application. If the process did not help, in the settings you can try to enable notifications for this software.
Android screen problems after sleep mode
Another problem may arise with the screen - it does not start after hibernation. There may be a black or white screen, but the smartphone itself continues to function. If you have a similar problem, you need to know that the reasons can be hardware or software:
- Ingress of moisture into the housing.
- Mechanical impact.
- The power button is not working properly.
- Problems with the firmware.
- Out of RAM.
If the smartphone does not turn on, but vibrates when an incoming call or other actions are performed, then there is a possibility that the problem can be solved without visiting a service center. It is necessary to clear the RAM from unnecessary processes by shutting down unnecessary applications. If this does not work, make a backup of important information and reset the system settings to the factory state.
Many users quite often face the problem when the smartphone screen is not blocked during a call. Conversely, the display does not unlock after the call is ended. Proximity sensor is to blame. Rather, its incorrect setting. In this article, we will tell you how to properly configure the Android proximity sensor.
Recording navigation:
What is an Android Proximity Sensor?
The proximity sensor is a small element of the device that is activated when the phone is physically close to an object. Due to the correct operation of the proximity sensor during a conversation, the smartphone display turns off automatically as soon as the user brings it to his ear.
The proximity sensor Android is very useful and even necessary for at least two reasons, namely:
- With the screen off during a call, you definitely will not accidentally press any button on the touch screen, for example, with your ear or cheek.
- The proximity sensor Android allows you to save battery power. With the phone screen turned on during a call, the battery charge would be consumed much faster, and this is extremely inconvenient for people who are used to or have to talk on the phone for a long time.
The proximity sensor is located at the top of the smartphone. As a rule, it is placed next to the front camera lens. On some devices, the sensor is visible to the naked eye, and on some it is not so easy to detect it. To locate the proximity sensor, it is enough to remove the device from your ear during a call and bring your finger to the place next to the front camera. If the display goes blank, it means that you have found the sensor.
How to enable proximity sensor on Android?
Usually, the sensor is turned on by default, but if it is not active for you or you accidentally turned it off, then you can always turn on the Android proximity sensor again.
For this you need:
- Go to the phone settings menu
- Go to the "Calls" section
- After that "Incoming Calls"
- Next, find the item "Proximity sensor"
- Turn on the proximity sensor Android by activating the checkbox
How to disable the proximity sensor on Android?
Sometimes the sensor does not work correctly, and for their convenience, some consumers want to turn it off. This can be done very quickly and easily. To disable the proximity sensor on Android, you need to follow all the points of the above instructions, but do not check the activation box or remove it.
If you have any questions, ask them in the comments below!
How to set up a proximity sensor on Android?
If your proximity sensor is turned on but does not work, you need to calibrate it or, in simple words, configure it. The easiest and safest option to solve this problem is to download the free Proximity Sensor Reset application from the Play Market.
To configure the proximity sensor on Android using this program, you need:
- Download and install the application "Proximity Sensor Reset"
- After starting the program, click Calibrate Sensor
- Cover the proximity sensor with your hand and select Next
- Remove your hand and select Next again
- After that press Calibrate and Confirm
- Give the program access to root rights. In the window that opens, click "Allow"
- Wait for the device to reboot
- Check if the sensor is working properly
If these steps did not solve the problem, and the proximity sensor still does not work for you, then you may need to calibrate the display. Read about how to properly calibrate the display in our article -. Re-flashing the device can also improve the operation of the sensor. You can find out information and select the firmware for your phone in the corresponding website.
In some situations, a hardware failure occurs, and for the correct operation of the proximity sensor, it needs to be replaced. In this case, we recommend contacting the service center for specialist help.
If you have any questions about how to configure the Android proximity sensor - write in the comments. We are always happy to help.
Video how to configure, enable or disable the proximity sensor Android
Answers on questions
How to check the proximity sensor Android using the engineering menu?
To check the Android proximity sensor using the engineering menu, you need to enter the combination * # * # 3646633 # * # * in the dialing menu. In the menu that opens, select the Hardware Testing tab, then select Sensor and click Light / Proximity Sensor. After that - PS Data Collection, and you will be taken to the menu of the Proximity Sensor Testing window. You need to click Get One Data, and the number "0" should appear in the second line. Next, put your hand on the proximity sensor and press Get One Data again, the number "255" should appear. If you have everything as in the above instructions, then the proximity sensor is working correctly.
but goes out when called and does not turn on. What to set up and how to fix it?
Many users face the problem when phone or Android tablet starts to play up. It seems that nothing happened that could cause a malfunction, but it does not work as it should.
For example, the device has problems with the fact that the backlight of the screen or the function of turning it on / off, etc. do not work correctly... This may be due to:
1st: Software glitch- i.e. the problem is a software failure
2nd: Hardware failure- i.e. the problem lies in the "hardware" (that is, it requires replacement or restoration of spare parts for the gadget)
However, do not rush to get upset - in 90% of cases with problems operation of the power supply adjustment system, backlight adjustment, display on / off smartphone a or Android tablet is to blame software glitch, which you can easily fix on your own.
We fix the software glitch:
Method 1. Quite simple - go to "settings" find there "Backup and reset" where you choose full reset settings with deletion of all data. Be careful, the use of this method is often effective, but it entails the deletion of all photos, contacts, passwords, music, games, videos and, in general, all information stored on your smartphone e or tablet e. Therefore, first save everything you need by connecting the gadget to your computer. If this method does not suit you, or if the problem persists after it, see Method 2.
Method 2.
Based on solving screen problems phone s and tablets based on Android by introducing additional software. Utilities that control all processes inside gadgets. Today, there are quite a few of them, however, the fewer functions an application contains, the more, as a rule, it is effective. Best of all controls system functions, corrects, and fixes all possible settings and synchronization errors is a small and easy-to-use free utility for Android devices. You can download the application from Google Play and see its additional options in the description. After installing the application, all that remains is to launch it. Further, from you, in principle, nothing else is required. The application will completely take over the control of the device's functions. (By the way, among other things, the gadget will start charging 20% faster, and its performance will also significantly increase, which will affect the download speed and operation of all applications, games, and the system as a whole. On average, after scanning, the system works on 50% faster.)
Method 3.
Change of device software, or, as it is also called "Per firmware ". This method, as a rule, requires certain skills and is solved by contacting the Service Center. To independently carry out this task, you need to contact the manufacturer's website for your device, download the utilities and the firmware itself necessary for the firmware, and then reinstall it on your gadget.
If none of the methods brought results, unfortunately, you will have to contact the Service Center for repair of your tablet a or smartphone a.
The screen or backlight does not go out on an Android smartphone or tablet. Or, the smartphone screen goes blank when called and does not turn on.
Why doesn't the screen go blank on the phone when I put it to my ear? In this article, you will find information on how to enable the screen lock function during a call in Xiaomi settings. If on your Xiaomi smartphone with an incoming or outgoing call, the screen stopped dimming and locked when you bring the phone to your ear, then you may have disabled this function in the Android settings. This could have happened completely by accident and you simply did not notice, or your children went through the phone's settings and turned off the proximity sensor. In our example, we will show how to turn on the proximity sensor on Xiomi Redmi 4X so that when you bring the phone to your ear, the screen is locked and turned off. Perhaps the information will apply to other Android smartphones and tablets as well.
To automatically lock the screen on Android when you bring it to your ear, you need to do the following. We open the phone icon on Xiaomi and get to where we usually dial the number to call. Next, click on the touch button "menu" in the form of three horizontal stripes. (On some Androids, after opening the "menu" phone, you can also open the touch button in the form of three stripes located under the screen on the left side. This button must be pressed and held a little to bring up the menu.) Look below at the attached pictures, where the necessary icons are highlighted and buttons.
Next, in the menu window that opens on Xiomi, select the Incoming calls item under which there will be a short description of possible settings (additional settings for the device's behavior for incoming calls).
In the "Incoming Calls" settings on Hiaomi, we find and select the item Proximity sensor under which it will be written (turn off the screen automatically when you bring the phone to your ear during a call) and turn it on. Done, now when you bring the phone to your ear, the screen turns off and locks, thereby preventing accidental taps and touches of the touchscreen.
- We will be glad if you add a review or share useful information.
- Thank you for your responsiveness, additional information and helpful advice !!!
06-03-2019
08 h. 12 minutes
Message:
Thanks! Redmi note 5 - everything worked out!
27-02-2019
11 hours 11 minutes
Message:
Thanks a lot. Model Redmi6 Recommendation came up
05-02-2019
23 hours 30 minutes.
Message:
Thanks a lot. It helped) the article is clear, everything is on the case.
24-01-2019
21 hours 37 minutes
Message:
Xiaomi Redmi 5 phone recommendation came up.
28-12-2018
00 hours 16 minutes
Message:
Thank you for the useful information .. I checked everything, but still the phone is not blocked when making calls (
12-12-2018
13 hours 38 minutes
Message:
If the sensor is activated - disable the lock in the pocket
30-11-2018
19 hours 16 minutes
Message:
Alas, all the settings are correct. Thanks to you at least I learned how to check it. But the screen is still on during a call (
22-11-2018
12 hours 43 minutes
Message:
The screen does not turn off during a conversation. The proximity sensor is activated in this case.
21-09-2018
15 hours 20 minutes.
Message:
I have Redmi 4A and everything is connected, but only during normal calls, and when you call from applications (watsap, imo ...) it does not work, the blocking does not turn on. How to deal with applications?
01-09-2018
07 h. 47 minutes
Message:
Why, when I receive a call or call someone. My screen turns off. When trying to turn on the screen using the lock, no result. I tried to turn the proximity sensor off and on. Did not work out. What to do?
23-08-2018
13 hours 36 minutes
Message:
Many thanks!
11-07-2018
13 hours 12 minutes
Message:
Finally, you need to reboot.
28-04-2018
12 hours 57 minutes
Message:
Thank you useful information
Often, users of mobile devices are faced with the fact that during a call, the screen lock does not work, which prevents involuntary pressing on the display. The problem then lies in the proximity sensor. There are several reasons for the incorrect operation of this element of the smartphone. Now we will figure out how to enable / disable the proximity sensor on Android, or configure it if necessary.
In this case, we are talking about a small contactless device that recognizes the approach of an object to a smartphone. As a result of the correct operation of this function, the display of the gadget will turn off automatically when you bring the phone to your ear. This will prevent accidental pressing of the touch buttons during a call (for example, with your ear, finger or cheek).
In addition, the proximity sensor on Android allows you to significantly save battery power, since when the screen is turned on while communicating with another subscriber, the battery power is consumed intensively.
Turning Proximity Sensor On and Off on Android
As a rule, the sensor on the device is active by default. If in your case this is not the case, or this function was somehow disabled by accident, then it will not be difficult to connect it. This is done as follows: go to " Settings", We find the section" System Applications", Select the item" Telephone»:
Then we press " Incoming calls"And move the slider in the line" Proximity sensor"(On some gadgets you will need to check the box):
Depending on the smartphone model, activation of the sensor will look a little different, for example, by opening the dialing field right away, call the call settings menu or by pressing the " Settings", Or by pressing and holding the hardware option button. And after that, as it was written above, in “ Incoming calls»Turn on the sensor:
If the question is about how to turn off the proximity sensor, then, accordingly, we go the same way and deactivate the function (uncheck).
How to set up (calibrate) the proximity sensor
This element is located at the top of the smartphone, usually to the left or right of the front camera lens:
On some models of Android devices, it can be seen with the naked eye, but on others it is quite difficult to find it. If, during a call, remove the phone from your ear, and then bring your finger closer to the front camera, then the display that goes out after that will prompt the location of the sensor.
It is quite possible that the reason for the incorrect operation of the sensor was the elementary ingress of dust on it. In this case, you can restore the normal operation of the function by simply cleaning the device - turn off the smartphone and blow it off with a jet of compressed air. Then you need to reboot your gadget and check if the sensor is working properly.
If this manipulation did not bring the desired result, then you can resort to sensor calibration, which is performed in several ways.
Using the capabilities of the system
We open " Settings", Select the item" Special abilities"(On some devices" Screen"), We find the line" Proximity Sensor Calibration»:
Then, we follow the system prompts step by step, see the video more clearly:
Through the engineering menu
Using the engineering menu, you can check the correct operation of the sensor, and, if necessary, calibrate it.
To do this, in the dialing field, enter the following set of characters: *#*#3646633#*#* Now open the tab “ Hardware Testing "(equipment testing) and press the button " Sensor", Choose" Light / Proximity Sensor "(light / proximity sensor):
- We choose " PS Data Collection»(Collection of data from the proximity sensor);
- In the next window, select “ Get One Data»;
- After the appearance of the number " 0 "Put a palm on the proximity sensor on your smartphone and press again" Get One Data»;
If as a result we see the figure 255 then our sensor is functioning normally.
For settings:
We choose " PS Calibration", then " Calibration". After that, without closing the sensor, click on "Calculate min value". After appearing at the bottom of the display the inscription “ Calculate succeed"We bring a sheet of paper to the sensor at a distance of 2-3 centimeters and click on" Calculate Max value", After which it remains for us to click" Do Calibration"And restart your smartphone:
Using third-party software
If all the previous methods to normalize the sensor's operation did not help, then you can use the Proximity Sensor Reset application (for rooted devices).
Download and install the program from the Play Store... After starting, activate the large button " Calibrate Sensor". Now we cover the proximity sensor with our hand and press “ Next»:
Then you need to remove your hand and press again " Next", and then " Calibrate" and " Confirm". We grant superuser rights (ROOT) to the system request. After the performed actions, we are waiting for the completion of the reboot of the smartphone.
Now you know how to enable / disable / configure the proximity sensor on Android. However, if in your case the problem has not been resolved, then it is possible that display calibration or smartphone flashing will be required. In addition, sometimes the sensor may not work correctly due to a hardware failure, then you cannot avoid contacting a service center for help.
