Android pressure sensor intermittently turns off. Calibrating the proximity sensor on xiaomi redmi, note, mi devices

Why doesn't the proximity sensor work on iPhone (4, 5, 6, 7, 8, X and SE), what should I do?

I assume you have heard about the proximity sensor and know why it is needed. However, for those who do not know what we are talking about, we will very quickly tell you what it is. Proximity sensor was first introduced in 2007. Its main task is to detect objects brought close to the screen.

For what? It blocks accidental and involuntary presses, for example, when making a call, holding the phone to your ear, you will not be able to take out a loan, sell a car or call the Ministry of Emergency Situations. Don't you think this is a useful function? In addition, during long calls it helps to save battery by putting the screen into sleep mode. So why doesn't the proximity sensor work on iPhone 5, 6, 7, 8, X?

Determining the cause of a malfunction without preliminary testing is quite problematic. After all, the problem may be a malfunction software or physical damage. We will list the most common causes of the malfunction.

Malfunction of the replaced one iPhone screen– as a rule, this problem occurs when the screen is broken and replaced incorrectly. Let's imagine a situation: you dropped your iPhone, it was without protective glass and its screen was very cracked. You have a desire to replace it, but after learning how much it costs to replace it at Apple and how long it will take, you give up this idea and decide to replace it yourself.

And here, you may encounter two problems that you most likely won’t even know about. First, you can buy a cheap, low-quality screen that doesn't support half the functionality of the original iPhone screen. And second, you may not connect it correctly.

Physical damage is a fairly common problem. Try to remember how long ago the proximity sensor stopped working, whether you dropped your iPhone at that time or exposed it to moisture. If yes, then most likely this is the reason. The only way out of this situation is repair from Apple.

checking iphone proximity sensor

Buying a broken smartphone – Apple is one of largest companies in a world with a huge number of buyers, it becomes a responsibility to produce quality goods. However, this does not mean the absence of marriage. In any production, people are responsible for quality control, and they tend to make mistakes. If you receive a defective iPhone, contact an Apple service center as soon as possible.

Software malfunction - sometimes the problem may be a bug iOS update or incorrect installation any application. Solving this problem is quite easy, but you risk losing all the files on your smartphone.

How to fix proximity sensor problems on iPhone?

Remove the case and protective glass

This is perhaps the simplest, but often not very effective way. However, try removing the case and safety glass smartphone and test if the problem persists.

Reboot your smartphone

No matter how absurd it may sound, but normal reboot iPhone helps fix half of the problems. In order to restart your iPhone, you need to:

Hold the power button for a few seconds until the “Power Off” slider appears.
Move the slider to the right and wait 2-3 minutes.
Press the power button until the Apple logo appears on the screen.

Hard Reset

iOS update

Update operating system can fix many problems. including a non-functioning sensor iPhone proximity. With each new update, previous bugs are fixed and performance improves. Sometimes the design is updated and new features are added. In order to update iOS, you need:

Reset settings

If none of the above methods work, you can reset all settings on your iPhone. This usually fixes iPhone 5, 6, 7 proximity sensor glitches.

In order to do this, you need:

Open "Settings".
Tap "Basic".
Select the “Reset” → “Reset all settings” function. After entering the password, click "Reset all settings" to complete the process.

Reset all data and settings

This method will not only erase all settings, but also all data, including apps, photos, videos, etc. Before you begin, create backup copy data. In order to make a reset, you need:

Open "Settings".
Tap "Basic".
Select the “Reset” → “Reset content and settings” function. Enter your password and then confirm your actions.

iPhone recovery

iPhone proximity sensor not working after update? You may be wondering what the difference is between this and the previous step. After all, both methods erase data and reset all settings. In fact, the difference is not great, but it is there. The recovery process will also format and reinstall the OS.

Connect iPhone to Mac/PC with using usb cable.
Make sure you have installed latest version iTunes.
Open iTunes.
In the summary tab, click the "Restore" button.
Then all that remains is to wait for the procedure to complete.

You can restore using the program. Errors occurred during recovery, list and their correction.

Articles and Lifehacks

Sensors that detect the approach of an object without physical contact are built into many modern electronics products. The simplest example is a faucet in a public toilet that responds to the approach of a hand. Next is a dryer in the same toilet, etc. This is all clear, but what is a proximity sensor in a mobile phone?

What is it and why is it needed

Almost the same as in the tap. This technology is used in various touch panels, thanks to which:

firstly, energy is saved;
secondly, there is no need to mechanically turn devices on and off, thereby extending their service life.

In a smartphone, this sensor blocks the display when it approaches the head. This prevents accidental pressing, for example by the user's cheek or ear. And, of course, it saves battery power. Of course, it does not detect whether it is a head or another object, but simply triggers when the object approaches the screen. This can be checked by placing your finger near the location of the sensor.

Problems in use

Many users experience that the proximity sensor on their phone does not work correctly. The display does not lock when approached to the ear, or vice versa, the display does not turn on and the phone does not unlock after the end of the call.

To eliminate this problem, you need to calibrate this sensor. To do this, you can download applications from the official website. In new versions Android opportunity calibration is provided.

Yes, in Android version 4 and higher necessary:

Open the “settings” menu, select “ Screen" And " ALS PS calibration" in the very bottom line.
Next, you need to place the phone on a flat surface, bring a sheet of paper or other object to the proximity sensor at a distance of 1-5 cm, hold it motionless and press the “Calibrate” button.
If you place a sheet of paper on the sensor, that is, close it completely, and press “ Calibrate", it will be disabled. But only until the phone is rebooted.

To completely disable it, you need to open the device, which is not recommended to do without the proper knowledge and skills. It's better to take it to a service center.

IN recent years All modern smartphones whether iPhones or Android devices are equipped a large number sensors and sensors. Each has its own functions in the phone - measurement heart rate and pulse, a barometer for measuring pressure, an accelerometer for calculating location in space, turns. Today we’ll talk about the proximity sensor in the device - what kind of device it is, what it’s intended for, the performance of the sensor. We'll also give necessary information how to disable or enable, calibrate the sensor.

The proximity sensor is located on the top plate of the front side of the device. Usually there is a speaker, camera, proximity and lighting sensors. IN latest models these sensors are combined into one.

How to find out where the sensor is located? Call a friend and place your finger close to the sensor (example of location in the screenshot below). When the screen goes dark, congratulations, it’s a proximity sensor.

The main function of this sensor is to react to an object approaching the phone screen. This technology was invented for automatic locking display while talking on the phone, communicating via Viber or WhatsApp. The next time you make a call, notice how the screen goes dark when you bring the device to your ear and then lights up when the call ends.

The sensor itself sends an infrared light signal to determine how far away an object is and blocks it when it approaches.

With this approach we get two big advantages:

The screen is blocked from accidental ear presses, which prevents accidental termination of the conversation, turning on speakerphone, you can also accidentally put the call on hold, etc.;
The second point is saving smartphone battery power. The phone's display is the main source of power consumption; when the screen is on, consumption increases and the battery drains quickly. When making calls with the screen off, the battery lasts longer;

How to enable and configure the proximity sensor in a smartphone?

The sensor does not have any settings as such, as we discussed above - its main function is to lock the screen when making calls. IN different versions Android OS and firmware most often you can find the item to turn on the sensor in the call menu. Click on the handset icon, then on the menu icon to go to the necessary options.

If you have a phone from Xiaomi, Redmi models or another company with the MIUI 10 or MIUI 9 shell - open the settings, click on the “Phone” item (or “Call settings” for the 10th version of MIUI), find the “Incoming calls” item and turn on the “Proximity sensor” item.

Proximity sensor does not work

If the proximity sensor does not work, check that it is in the activated position in the settings for incoming calls. Problems may occur during installation unofficial firmware, patches, some system updates.
In such cases, the best advice would be to use only official firmware from the manufacturer and try to make it general reset settings.

At physical damage Resetting settings, flashing and other programs will not help; such a breakdown can be identified in service center followed by replacement of the sensor.

Therefore, we will try to calibrate the sensor using the “Fix It calibrate sensor” application.

Proximity Sensor Calibration

As we wrote above when physical breakdown all manipulations will be useless. However, when software glitch The “Proximity Sensor Reset, Repair” utility will help; you can download it at Google link Play: "Fix It calibrate sensor" . After installation and launch, the application will try to reset software settings and problems.

Conclusion

Leave a review on how useful this article was to you. Have you figured out what a proximity sensor is in your phone, how to enable, disable and calibrate the sensor? If you have any questions, write them in the comments to this page or contact our group and we will try to help you.

The Android operating system contains many useful functions, but some of them may not be needed, in particular the proximity sensor. This is a special sensor that is installed on the front side of the device, and when an approaching object is detected, it performs some action, in particular:

Turn off the phone backlight when you bring the smartphone to your ear;
Automatic call reception when a motion sensor is triggered;
Automatic volume increase when the phone is directly in your pocket.

In some cases, it does not work correctly, so users for ease of use mobile phone prefer to turn it off. There are several ways to disable the sensor: using standard settings, third party software and use

Using standard settings

Simple and extremely affordable way disable the proximity sensor on Android - use the standard settings. In each model this function may be located in different places. However, the general “formula” for disabling the sensor consists of the following steps:

Go to the “Settings” section of your Android smartphone.
Select the sub-item “Calls”;
Find the “Proximity sensor” item, and then uncheck it.

In some devices this item is called differently, in particular “turn off the screen during a call.” After that, you can make a call and check that everything is turned off.

Using third party software

There are times when such manipulations do not have any effect and the proximity sensor still works as before. There is no need to worry, as on the Internet you will find several applications that allow you to disable this sensor, bypassing the standard Android settings.

One such application is Smart Screen Off. She provides ample opportunities on setup various sensors and phone buttons. The functionality of this program also includes disabling the proximity sensor. In the program interface, you need to find the corresponding item, and accordingly, disable the proximity sensor.

After this, when you make a call and bring the device to the ear, the sensor will not trigger, i.e., perform any actions. You can download the application at Google Play, and then:

Enter the name in the search bar;
Go to the program page;
Click "install".

Engineering menu and service codes - a solution to any problems

Most modern mobile operating systems, including Android, have a so-called engineering menu. It is an advanced smartphone settings that can be used to configure almost any component of the phone, including the proximity sensor if it is not working correctly. Before using this menu, be sure to read all the information you can find on your model. Engineering menu Used only by developers or advanced users. Installation incorrect settings can lead to extremely adverse consequences. To enter the engineering menu you need to:

Enable dialing on your phone.
On the keyboard, enter the following combination of characters - *#*#3646633#*#* (depending on the manufacturer, there may be other combinations).
If after this the engineering menu does not appear, press the call button.

There is an easier way - enter the service code. This is a special combination of symbols and numbers, thanks to which you can perform specific action. If the sensor does not work correctly, you should find a code for your specific phone model that will be used to disable it. Be sure to check out several sources of information online, as there are engineering codes that produce.