Z2 proximity sensor. How to calibrate and configure the proximity sensor on Xiaomi
Phones evolve from year to year, becoming more and more complex devices, having a dozen different sensors on board. Each of them is responsible for certain functions. For example, a proximity sensor is responsible for regulating the auto-brightness of the screen and turning it off during a conversation; it is also called a light or ambient light sensor. Calibrating the proximity sensor on xiaomi redmi or note devices will help correct incorrect operation of the sensor, which can cause a lot of problems for the smartphone owner, for example, accidental taps on the screen during a call. There may be several reasons for malfunction. If a banal reboot of the device does not help you, then let's look at the reasons according to their degree of complexity.
Turn on the light sensor
Your sensor may simply be turned off. To enable it you need to take several steps, let’s look at the example of xiaomi redmi 3s.
Open the “phone” application (dialer in common parlance)
Long press on menu
In the list that opens, select “incoming calls”
Then we find “proximity sensor” in the list and turn it on if it is disabled
Some xiaomi models may not have this option or this function will have a different location in the menu. Unfortunately, it is impossible to give a universal menu path due to the wide variety of models and firmware.
Disabling “harmful” functions
The most common reason for a sensor not working correctly is the enabled “pocket lock” function, the purpose of which is to prevent the screen from turning on when the smartphone is in your pocket. Because of this option, the light sensor often does not work correctly.
This problem is relevant on all xiaomi firmwares, for some reason engineers do not want to fix this problem or believe that everything works as it should, however, for some users, this function does not cause problems. To turn off pocket lock, you need to go to settings, then to “calls” and then to “incoming calls”, there you can find a slider that turns off this feature.
What can interfere with the sensor?
One of the reasons for a proximity sensor not working correctly is physical interference in its operation, namely protective film or glass. For example, our employee’s xiaomi redmi note 3 pro does not have this proximity sensor working for this exact reason. If you do not have holes for the light sensor, then you need to either change the film/glass or make this hole yourself. This sensor is usually located above the screen, next to the front camera and earpiece. Low-quality or universal films usually suffer from this problem. Therefore, before purchasing a protective coating, be sure to check the presence of all holes.
Testing and calibrating the light sensor
Checking the light sensor
A fairly popular solution is to calibrate the proximity sensor of xiaomi devices. First, you need to check the functionality of the sensor in your phone, to do this, dial the following numbers *#*#6484#*#* (you do not need to press the call button), thanks to this combination you will be taken to the engineering menu, tested on xiaomi mi4 and xiaomi redmi 3 pro , other ways to get there are described in our article about the engineering menu.
You will see 5 buttons on a black background.
Click on the top right, it should say “Single Item Test”.
In the list of components you need to find and select “Proximity Sensor”; it is usually located almost at the very bottom.
In the test itself, the inscription “far” or “close” will be displayed on the screen; closing and opening the light sensor (for example, with your finger), the inscription should change. If this does not happen, then this module is faulty.
After this text, you can try calibration.
Light sensor calibration
Let's look at calibration using the xiaomi redmi 3s smartphone as an example.
Turn off your smartphone completely.
Press and hold the volume+ button (volume up), and without releasing it, press the power button. Your device should vibrate, after which the buttons can be released.
A menu will open in front of you, in 95% of cases it will be in Chinese (including on xiaomi redmi 3s). You need to click on the “中文” button, it is located on the bottom line to the right of the “download模式” button. After this, the menu language will change to English.
Click on the “PCBA test” button on the top line and the engineering menu opens in front of us.
If the touchscreen does not work, then use the “UP” and “DOWN” buttons to move to the “Proximity sensor” item and go into it.
You need to place the phone horizontally on a flat surface.
The light sensor should not be covered with anything (it is better to wipe it with a cloth).
Make sure your phone is not exposed to bright light.
Click on the “Calibration” button, the sensor will begin to calibrate.
Afterwards the message “Successfully” should appear, it means that the calibration was successfully completed.
Now you need to check the operation of this module, cover the light sensor with an opaque object, on the screen 1 should change to 0 and vice versa.
After this, you may need to press the “Pass” button, you will be taken back to the engineering menu, there we press “Finish”, then “Power Off”, the phone should turn off.
Turn on the phone and check the operation of the sensor. When you make a call, the screen should only go dark when you bring the phone to your ear.
In our personal experience, the correct operation of the xiaomi redmi 3 proximity sensor was completely restored using this method.
Incorrect device firmware
If calibration does not help, then the reason for the incorrect operation of the smartphone may be incorrect flashing; this applies not only to the light sensor. The problem is that the new firmware does not install correctly on the smartphone, receiving the remaining garbage from the old firmware. This problem concerns the update method through standard recovery (bootloader). The transition to new versions should be done via fastboot or with resetting all settings and user data (full wipe). Among the disadvantages of this method, it is worth noting that all your data and applications will be deleted, but all garbage will be deleted along with them.
Other reasons
If the previous methods did not have the desired effect, then replacing the screen with a low-quality one may be the reason. Unfortunately, screen modules for xiaomi phones come with a light sensor. If you have already had your screen replaced at a service center, then it is quite possible that, contrary to all the technician’s beliefs, you were simply given a low-quality screen with a bad sensor. If your smartphone does not work correctly from the very beginning of the purchase, then the reason may be a simple defect. We advise you to contact the seller for further instructions.
We hope these tips helped you, be sure to write in the comments whether this article helped you and what advice helped you.
Proximity sensors are used very actively in today's realities. Devices based on the Android operating system are no exception. But, a situation may arise when this function not only does not help, but interferes, and often such a sensor does not work correctly. Not everyone needs the phone to automatically trigger (sometimes erroneously) when approaching an object (when making a call).
In this case, you will need to disable the proximity sensor. This can be done very simply. You need to perform a few simple operations, which are described in detail below. So, let's go.
Instructions
Below is one of the options for disabling the proximity sensor; these instructions are written based on the Galaxy S4 device (on other devices, the process of disabling the proximity sensor is disabled in a similar way):
- Launch your Android device and go to the settings section;
- Next, you need to go to the my devices section and go to calls;
- Now you need to find the “Turn off screen during a call” item and uncheck this item.
That's it, now the sensor will not turn on when you call. If your operating system version or phone model differs from the above, then use third-party software to disable the sensor. The link to the corresponding software product is below.
Tools
If you were unable to disable the sensor using the instructions above, then you can use a special program called Smart Screen Off. This program will help you not only disable the proximity sensor on your Android mobile device, but also help you calibrate it in case of any problems.
In order to download the Smart Screen Off application, you need to follow this link from the device you are on.
Attention: It is strongly recommended not to install any software on your mobile device from third-party services. Install programs only from the official source - the Google Play store, otherwise you may download a virus onto your phone or tablet along with the application, which, in turn, can cause a lot of trouble. So always be careful when installing.
Other options
Also, to disable the sensor, you can use a special combination of numbers that is entered on the keyboard or sensor of your mobile device. These combinations are different for each device, so you need to find out the one that is suitable for your mobile gadget.
That's all for today, I hope this post has been useful to you. And you managed to turn off your proximity sensor. If so, I would be grateful if you share it on social networks, and also express your opinion in the comments to this lesson.
Why doesn't the screen on my phone go dark when I hold 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, when there is an incoming or outgoing call, the screen stops going dark and the screen locks when you bring the phone to your ear, then you may have disabled this function in the Android settings. This could happen completely by accident and you simply didn’t notice, or your children went through the phone’s settings and turned off the proximity sensor. In our example, we will show how to enable the proximity sensor on the Xiaomi Redmi 4X so that when you bring the phone to your ear, the screen will lock and go dark. Perhaps the information will also apply to other Android smartphones and tablets.
In order for the screen to automatically lock 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, press the “menu” touch button in the form of three horizontal stripes. (On some Androids, after opening the phone, the “menu” can also be opened with a 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 Xiaomi, select the Incoming calls item, under which there will be a short description of the possible settings (additional settings for the device’s behavior for incoming calls).
In the "Incoming calls" settings on Xiaomi, 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 conversation) and turn it on. Done, now when you bring the phone to your ear, the screen will turn off and lock, thereby preventing accidental presses and touches on the touch screen.
- We will be glad if you add feedback or share useful information.
- Thank you for your responsiveness, additional information and useful tips!!!
14-05-2019
00 o'clock 49 min.
Message:
Thank you, very useful article, I did everything in half a minute. I would have spent a long time looking for it in the settings.
13-05-2019
17 o'clock 40 min.
Message:
Redmi Note 7 turned everything on but the screen does not go dark.
05-04-2019
08 o'clock 40 min.
Message:
The information is correct, redmi 3
16-03-2019
15 o'clock 59 min.
Message:
Model Redmi 6
16-03-2019
15 o'clock 58 min.
Message:
Thank you! Everything is clearly described.
06-03-2019
08 o'clock 12 min.
Message:
Thank you! Redmi note 5 - everything worked out!
27-02-2019
11 o'clock 11 min.
Message:
Thanks a lot. Model Redmi6 Recommendation is correct
05-02-2019
11 p.m. 30 min.
Message:
Thanks a lot. It helped) the article is clear, everything is to the point.
24-01-2019
21 o'clock 37 min.
Message:
Xiaomi Redmi 5 phone recommendation came up.
28-12-2018
00 o'clock 16 min.
Message:
Thank you for the useful information. I checked everything, but still the phone is not blocked when making calls(
12-12-2018
13 o'clock 38 min.
Message:
If the sensor is activated, disable the lock in your pocket
30-11-2018
19 o'clock 16 min.
Message:
Alas. All the settings are set correctly. Thanks to you, at least I learned how to check this. But the screen is still on during a call(
22-11-2018
12 o'clock 43 min.
Message:
The screen does not turn off during a conversation. The proximity sensor is activated
21-09-2018
15 o'clock 20 minutes.
Message:
I have a Redmi 4A and everything is connected, but only during normal calls, and when you call from applications (watsap, imo...) it doesn’t work, the blocking does not turn on. What exactly to do with applications?
01-09-2018
07 o'clock 47 min.
Message:
Why when I take a call or call someone. My screen turns off. When I try to turn on the screen using the lock, no result. I tried turning the proximity sensor off and on. Did not work out. What to do?
23-08-2018
13 o'clock 36 min.
Message:
Thank you very much!
11-07-2018
13 o'clock 12 min.
Message:
Finally, you need to reboot.
28-04-2018
12 o'clock 57 min.
Message:
Thank you, useful information
Our site has already talked about what happens on smartphones and phones. Let us recall that this is an electronic device for recording the presence or absence of a certain class of objects in its coverage area. In simple terms, the sensor turns off the screen if you bring the smartphone to your ear or simply cover it with your hand. This is done so that during a conversation there is no possibility of accidentally pressing the touch keys.
In some cases, you may need to disable the proximity sensor. Is it possible to do this? It’s possible, but not all devices have such an item in the settings. For example, Samsung smartphones have it. Let's show an example.
Go to "Settings".
Select the “Device” section, “Calls” subsection.
Uncheck the “Turn off screen during a call” checkbox.
After this, the proximity sensor will be disabled.
The second way is to use special applications. They do not require obtaining, but they do require administrator rights, so you use such an application only at your own peril and risk. Uninstalling such apps can be confusing because it requires you to first disable administrator rights, and those rights are disabled in the app's settings before it can be uninstalled.
For example, you can use the Sanity application. It has a whole section called Proximity, which has a lot of settings for the proximity sensor.
As you can see, it’s nothing complicated, but we strongly recommend using the standard smartphone settings without installing third-party applications.
The proximity sensor on Android is a special device located next to the front camera of the device, which serves to perform certain functions. For example, when the sensor detects an approaching object (you brought the smartphone to your ear), it turns off the screen backlight to save battery consumption during a call, or it allows you to automatically answer a call.
However, many users often encounter this problem: the proximity sensor does not work correctly, as a result of which during communication, the conversation is put on hold or even reset, although you did not press anything. In such cases, it makes sense to disable it altogether. From this article you will learn how to do this.
Disabling the proximity sensor on Android using built-in tools
Video instruction
Disabling the proximity sensor through third-party programs
If for some reason you were unable to disable the proximity sensor on Android using the method described above, then use the application called and do the following: 
Let us add that there are a lot of such applications, but they all work on a similar principle.
Special service code
You can also disable the proximity sensor by entering a special code. It differs for different phone models - there is no universal combination. On the Internet you can find such a code specifically for your smartphone. One of the most common - * # * # 0588 # * # * . However, it is not a fact that it will work.
Conclusion
Now you have learned how to disable the proximity sensor on Android and you can tell your friends if they encounter this problem. Please ask any questions you have below in the comments, and we will definitely answer!