The compass built into Xiaomi smartphones allows you not only to accurately navigate to the cardinal directions, but also to perform a number of other useful tasks. We invite you to get acquainted with all the features of the application and appreciate its functionality.
Xiaomi compass calibration
When you first start the program, a ball will appear on the screen, which you will need to roll a little. The operation should be carried out with the Internet connected, which will allow you to calibrate the compass on Xiaomi as accurately as possible.
How the compass works on Xiaomi
The main feature of the application is that it works in conjunction with the main camera of the smartphone. In order to determine the desired direction, simply point the device in the desired direction.
The display shows not only an image of the area, but also the exact coordinates of the user’s location.
If the device is placed on any surface or the camera is turned off, then the compass on Xiaomi has a classic look, that is, a circle with divisions and cardinal directions appears on the screen.
The next option will be appreciated by the male half, because the Xiaomi compass has a built-in electronic level. This means that with the help of a smartphone it will now be much easier to carry out minor construction work around the house. The principle of operation of the level is organized in the same way as in standard devices, and its high accuracy is guaranteed due to the gyroscope built into the product.
In order to check the evenness of the surface or if you need to level any object before installing it, you just need to put the smartphone on the back side or place it on its edge. Two circles will appear on the display. One of them is red and corresponds to the air bubble found on classic devices.
To align, you need to change the position of the smartphone in space until the circle becomes green, which will indicate the alignment of the object. At the same time, the degree indicator at the top should correspond to the number “0”.
Using the compass on Xiaomi is quite simple, so you can be absolutely sure that you will not get lost in the forest, and you will also be able to efficiently carry out minor construction work around the house.
Everyone has modern smartphone on Android based or iOS there are many interesting opportunities. Every year, devices are equipped with more and more complex functions that make working with the phone easier. One of the features of smartphones is sensors, of which there are more than a dozen. Xiaomi also has a lot of these.
Long-term use of the device leads to disruption of the sensors. Because of this, the automatic brightness of the screen may not be adjusted correctly at different times of the day, and there will be problems when pressing the screen, since touches are detected incorrectly.
As for smartphones, calibrating the sensor will help fix the problem Xiaomi approaching. This procedure allows you to configure sensor responses to the correct response, also with other types of sensors. It is worth noting that devices from other companies do not have this function.
How to calibrate the proximity sensor on xiaomi
On most Xiaomi smartphones you can use the engineering menu, which contains the necessary sensor tests. But first you need to check the activity of the proximity sensor:
- Open the “Phone” section and click on “Menu” on the left.
- Go to Settings.
- Find the item “Incoming calls”.
- In this section, look at the line “Proximity sensor”, the function should be active.
- Open the dialing menu and enter standard code engineering menu: *#*#6484#*#*.
- We immediately get to the QC test window. Here we find the item “Proximity Sensor”.
- We try to move our finger closer to the sensor on the top panel of the device. If the “Value” value changes, then the sensor is working.
- Click the "Calibration" button to calibrate the proximity sensor on your Xiaomi.
Battery calibration
Why do you need to calibrate the battery of Xiaomi smartphones?
During prolonged use of the phone, data about fully charged and battery discharge may be incorrect, as a result, charging the smartphone may not be correct. This problem shortens the battery life. To fix this you will need to calibrate the battery.
The first method of calibration is that the device must be fully charged while turned on and the following manipulations must be performed:
- Disconnect the charging cable from the phone;
- Turn off your phone completely and after a couple of seconds, reconnect the charging cable. The LED should light green;
- Disable again charger and turn on the phone. After loading the OS, turn it off again. We carry out all actions very quickly;
- We begin to charge the switched off phone. As soon as the LED turns green, disconnect the smartphone from the charger again.
- Turn it on and use it.
This was the easiest way to calibrate the battery on xiaomi.
The next method is to use Root rights. To do this, you need to prepare by reading each point of the instructions below:
- Turn off the smartphone completely and connect it to the charging cable. It is advisable that the adapter be connected to an outlet.
- After the device LED turns green, the device must be turned on and wait full load operating system.
- Further actions will work if you have superuser rights. Download the “Root Explorer” application.
- Go to the data/system directory and find the batterystats.bin file that we are deleting.
- We disconnect the charger and use the smartphone until it turns off automatically.
- We charge the phone up to 100%.
Now the xiaomi smartphone battery is fully calibrated and the system has “remembered” the exact capacity value.
How to calibrate a compass
Almost any Xiaomi firmware has a built-in Compass application. Correct compass calibration proceeds as follows:
- Go to the smartphone settings and the “Installed applications” section;
- Find the Compass application;
- Click the “Clear data” button to clear the cache;
- Reboot the phone;
- We are looking for the compass application on the main screen. It is usually located in the Tools folder.
- By launching Compass, we allow access to geodata.
- We act in accordance with the instructions on the screen (You need to perform a figure-eight gesture), while the smartphone is placed in a horizontal position.
- After calibration, vibration will occur and the compass itself will appear.
Screen calibration
If, when you press the screen, the sensor does not respond well, or touches are detected incorrectly, it is possible to correct the problem. To do this, the sensor is calibrated. The process involves the following series of actions:
- To calibrate the screen, it is advisable to remove protective film or glass, but this is only a recommendation;
- We go to the engineering menu by entering the command *#*#6484#*#*;
- Find the “Touchpanel” option;
- We move our fingers across the screen according to the instructions.
It is possible to use specialized applications, which can be downloaded from Play Market. These include Touchscreen Calibration, Display Calibration and the like. We use them last.
Thus, we looked at two ways to calibrate the display. If it doesn't help, then the problem is somewhere else.
Other calibrations
There are many more sensors, but one of the important ones is the accelerometer, which is responsible for orientation in space. In other words, if your screen rotation isn't working properly, there's probably a problem with your accelerometer.
Calibration of the accelerometer on a Xiaomi smartphone is carried out using two methods: using standard functions and an ordinary magnet.
In the first case, on some Xiaomi firmware In the settings there is a function for calibrating the accelerometer. It is located in the “Display” parameters. After this, the built-in feature will automatically configure the sensor.
The second method is to use mechanical force on the smartphone using a magnet. The method does not always work and should be used with caution (the magnet should not be highly magnetized).
Take a magnet and run it across the back of the phone for 2 minutes. It is advisable to put some fabric or paper between objects. After the procedure, we restart the device and check the functionality of the accelerometer.
There is another calibration option using the engineering menu. Let's do everything in order:
- Enter the command *#*#6484#*#* to enter the engineering menu;
- Find the item “Accelerator” or “Accelerometer sensor”;
- We tilt the phone in different directions: right, left, forward and backward. As soon as all the arrows appear, press the “Calibration” button;
- The message “Calibration success” should appear;
- Click OK;
- Now you need to rotate the smartphone in a circle to calibrate the Magnetic Sensor. We hold the device in a horizontal or vertical position;
- We are waiting for the vibration and Finished message.
This has happened to almost everyone. You've been trying to find the right path, but the arrow in your navigation app isn't pointing in the right direction, moves in different directions, or doesn't move at all. If it becomes difficult for you to navigate in space using your smartphone, the device’s compass should be reconfigured. In our article we will tell you how you can do this.
In fact, calibrating a smartphone compass is very simple. Based on what you have on your phone Google Maps, open the application and follow these simple steps:
- Hold your smartphone as you normally would. Holding the device in front of you, tilt its top forward (away from you) and then back (toward you);
- Now place the device in a vertical position so that the display is facing you. Turn the phone first left, then right;
- Place your smartphone in a vertical position again. Tilt the device to the side (for example, first to the left, then to the right) by 90° - similar to how you switch to landscape mode.
Draw the number "8" in the air with your phone to calibrate the compass
If the above method did not help you, then you can try to draw a figure eight in the air with your device. You need to open Google app Maps and go through the motions as shown in this video - it's very simple, although you may look a little stupid doing it in a public place.
Third Party Applications
You can also install the application from Play Store to see the status of your compass and other sensors and determine if they need calibration. One such application is GPS Essentials.
Do you have any questions? Ask them to us in the comments.
We think that many have had such cases when, after some time, after purchasing any “gadget” (smartphone, tablet, laptop, etc.), certain problems in its operation were identified. Perhaps you did not use some functions in the first couple of days after purchase, and when you decided to try them in action, they turned out to not work (this could be a Wi-fi module, 3G(4G), Bluetooth, 3.5 mm jack for connecting headphones, etc.). If a new device was bought, then within a couple of days, it was unlikely that anything could happen to it (unless, of course, it was drowned, dropped, etc. during this period), from here we can conclude that this is a factory defect. In this article we will tell you how to test a device for defects before purchasing using the Engineering menu.
ENGINEERING MENU is a built-in utility that allows you to view data about the installed components in your smartphone (tablet), as well as check their functionality. This utility is initially installed on all smartphones (no need to install third-party software), which makes it possible to quickly check compliance with the declared technical specifications, and also test all components of the device.
Example:
It's no secret that the same model of Xiaomi smartphones can have different display matrices installed. Engineering menu(hereinafter referred to as “IM”) allows you, before purchasing, to use the type of matrix that, in your opinion (or according to experts), is considered the best, and immediately check it “for dead pixels.” You can also see which camera modules are installed in this device.
“IM” presents a large number of tests that can easily identify a malfunction of any smartphone module. Also, there is the ability to configure some components, for example, sensor calibration. Next we will describe in more detail all the possible functions of “IM”.
HOW TO GO TO “IM”?
There are several ways to log in:
1. B standard“Phone” application (in third-party “dialers” it does not work), dial: *#*#6484#*#*
This combination is the most common, but if it doesn’t work for you, try the following options: *#*#3646633#*#* or *#*#4636#*#*
2. Go to “Settings” - “About phone” - click 5 times in a row on the “Kernel version” item
until "IM" appears
Now let’s look at all the points of “IM” in more detail:
1.Software version
This is the first and only item that displays information about installed components, their manufacturers, IDs, and versions, all subsequent paragraphs are tests. When leaving this point, “IM” will offer to take a full test.
If you click “OK” now, the entire test cycle will start; if you select “Cancel”, you will return to home page"THEM".
So, let's move on to the tests and their descriptions.
2. SIM Test
At this point, the installed in the smartphone is tested SIM cards, an example of passing the test looks like this:
To move on to the next test, click “OK”. When you click “Error,” you return to the main “IM” page (this will happen in all tests, we will not focus on this further).
3. Color
This test is intended for identifying dead pixels on a smartphone screen. If you have the opportunity to conduct this test before buying a smartphone (you buy it in a store, not order it online), be sure to do this(of course, this is only relevant for displays with an IPS matrix; Amoled displays do not have this deficiency, in view design feature). If you discover the presence of a dead pixel (or several) after purchase, no seller (be it a regular store in your city, or an online store) will replace it with another one, with a normal screen, because... the presence of a dead pixel (even several) is not a warranty case; their presence is allowed, and in such quantity that you can never dispute that your phone actually has a “factory defect”. There have been cases when a smartphone ordered through an online store (Aliexpress) had dead pixel(it glowed white on a black background, right in the center of the screen, looks very “disgusting”, especially when watching a video). I had to “talk” with the seller for a very long time about this (since a dispute was opened), who did not want to compensate for part of the purchase costs of this smartphone, arguing precisely that this is not considered a marriage. As a result, we managed to agree on a compensation amount of $10 (when opening a dispute, more was stated). What’s most interesting is that this pixel was cured using the “Pixel Fixer” program, and to this day the smartphone has no problems displaying information on the display (more than 1.5 years).
On the desktop, when everyday use, a dead pixel may not appear. It can glow in any color on a black background or, conversely, on a white background. There are also glow options in other colors. That is why this test presents the primary colors, in which it is quite easy to identify a dead pixel, if present. When conducting this test It is better to turn the screen brightness to maximum.
4.Touchpanel selftest
The screen test runs without user intervention and then moves on to the next test.
5. Play Music on SD
This test is designed to check main speaker of the smartphone. Through this speaker, in a female voice The numbers are played back for you to type on the numeric keypad displayed on the screen.
6. Receive
Test conversational dynamics. The principle of passing the test is the same as with the main speaker.
7.GPS
8.WLAN Address
Shows MAC address devices. When connected to Wi-fi networks, displays the network name, IP address, received signal strength and connection speed.
9. Wifi
Examination Wi-fi module . Displays all available networks within range.
10.Bluetooth address
Display information about MAC address Bluetooth adapter.
11.bluetooth
Examination Bluetooth module. Scans and displays a list of devices within range
12. Light sensor
Testing Light sensor(required for correct operation auto screen brightness)
13. Proximity sensor
Testing Proximity sensor(used to turn off the screen during a call)
14.Motor
Test Vibration motor(vibration for calls, messages, notifications, etc.)
Tests available: Short Vibration- short vibration and Long Vibration- long vibration.
15. KEY
Button test: " Menu», « Home», « Back», « Volume +», « Volume -», « On (Off.)»
Pressed buttons, if they pass the test, are marked in green.
16.touchpanel_gr
Examination touch screen. To check, you need to paint over all the white rectangles on the screen by sliding your finger over them. This way you can check the entire surface of the touchscreen for functionality.
17.touchpanel_bow
One more screen check. In this case, you need to draw something like graphic key, displayed as lines on the screen.
18.Led
Backlight Light— maximum screen brightness
Backlight Dark— minimum screen brightness
Red LED— the event indicator glows red (if there is an indicator)
Green LED— the event indicator glows green
Blue LED— the event indicator glows blue
Torch0 on- turn on the flash (flashlight)
Torch1 on- turn on the second flash (if present)
Key led— checking the backlighting of the buttons under the display (if supported by the device)
19.Back Camera
Rear camera. Checking the main (rear) camera
20.Front Camera
Front camera. Checking the front camera
21. Mic speak Loop
Quality check main microphone, the signal level should be more than 29DB.
22. Call test
Another test main microphone(call test), as well as conversational dynamics. You need to say something into the microphone, and you must hear what you say in the speaker.
23. Sub mic to speaker loopback
Examination additional microphone, which is used for noise reduction during conversations (not present on all smartphones).
24. Accelerator
Accelerometer— a sensor that determines the spatial position of the smartphone. Mainly used to enable the auto-rotate screen function. It is also possible to configure (via various applications) to turn off the volume when incoming call turning the smartphone screen down or assigning some action when shaking the smartphone.
25.Magnetic sensor
Magnetic sensor (magnetometer), is necessary for the operation of the Compass program, which tracks the orientation of the device in space relative to the magnetic poles of the Earth.
26. Gyroscope
Gyroscope - Mainly used in games to control screen rotation.
27. Hall Sensor test
Hall sensor - a sensor that is capable of detecting the presence, intensity and change in intensity magnetic field(not available in all smartphones).
Used for:
— digital compass, used to improve positioning.
— this is interaction with popular cases for smartphones and tablets.
28.Headset plug-in
Test headphone connections(headset) into a 3.5 mm jack (if available).
29. Headset key
Examination buttons on the headset(headphones), if present.
30. Headset loopback
Examination microphone on the headset(headphones), if there is a microphone. If it is available, when speaking into a microphone, you should hear what you are saying through the headphones.
31.FM
Examination FM - radio. We select a known station frequency (although there are automatic search stations), check the result.
32.Headset plug out
Checking that the headphones (headsets) are disconnected.
33. Charger plug in
Examination charging smartphone when connecting the charger.
34. Charger plug out
Examination charger disconnection.
35.OTG plug in
Testing work OTG. Connecting a flash drive to a micro USB (Type-C) port with an appropriate connector or via an adapter.
36.OTG plug out
Examination disable OTG device.
37. Battery capacity
Test smartphone battery. Information about temperature and battery charge is displayed.
38.SD Card
Testing SD cards. Information about installed card memory in a smartphone, its volume and free space on her.
39. IR Send Test
Examination infrared transmitter, if available. Used for control household appliances as a remote control.
After passing all the tests, you will see something like this:
Successfully passed tests are marked in green with the inscription “Pass”, and failed tests are marked in red with the inscription “Fail”.
CONCLUSION:
As can be seen from the review of tests, “IM” allows you to test almost all elements of a smartphone and identify (if any) faults. There is also the possibility of calibrating certain sensors; this can help if a sensor does not perform the functions assigned to it or does not perform them correctly.
Now you know how to protect yourself when buying a new smartphone. Be sure to check your smartphone before purchasing; perhaps you will be able to identify problems and replace the smartphone with another one that does not have these problems. This in turn can save you huge amount time and nerves if you have to contact the service to repair or replace your smartphone under warranty.
