Literally any smartphone will sooner or later experience a software failure, the cause of which lies in the device's firmware. In order to determine the type of breakdown, manufacturers have developed a special menu through which the user can independently diagnose any module of the device and find out what the cause of the problem is.
Today we will introduce you to its main functions on Xiaomi Redmi 4 Pro and Xiaomi Redmi 4x and learn how to log into engineering menu.
The engineering menu is a hidden gadget settings menu, which was created with the aim of diagnosing and fixing various problems and errors in the operation of the device. The manufacturer did not place these settings in the standard menu of parameters because an inexperienced user can make a mistake, as a result of which Xiaomi Redmi Note 4 will stop calling or playing music. Therefore, we recommend that you be extremely careful so as not to harm the phone and then do not carry it in service center"brick".
Engineering menu functions:
- Volume and sound in spoken and main speakers;
- Microphone parameter settings;
- Networks and GPS;
- Repair IMEI;
- Camera parameters settings;
- Optimization operating system to reduce battery consumption.
Of course, there are a number of other features, but these are the most popular.
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How to enter the engineering menu Xiaomi
Below are the two main methods for entering the engineering menu of the phone using the example of Redmi Note 4x. There is also a third, but it involves the installation third party applications and is most often used if the first two are not working for some reason.
- Through the phone parameters. This method is universal and is suitable for almost all Xiaomi phone models. So go to "Settings - About phone - Kernel version"... Click on this item three times (slowly), and then click twice more if such a message appears. Ready.
- Using Xiaomi Redmi codes. Open the dialer and enter one of the following code options: *#*#6484#*#* , * # * # 4636 # * # * or *#*#3646633#*#* - some of them will work one hundred percent.
If for some reason none of the methods works, then you will have to resort to the third method, which was written about above - use by third-party software... For example, we can recommend programs or MTK Engineering (link to Google Play) that you can install on your smartphone. Let's take a closer look at each of them.
MobileUncle Tools
The most powerful application at the moment, which provides the user with the ability to perform a wider range of operations with the device (although this only works with smartphones based on the MTK chipset).
To start using the application, you need to obtain superuser (root) rights on the phone and give permission to the program to use them. With the program open, click "Engineering Mode" and select the item "Engineering menu (MTK)"... As of today, this app has been removed from Play Market but finding it on the internet is not at all difficult. Since the developer of the program is a Chinese, you can find two versions - in English or in Chinese.
MTK Engineering
This is a fairly popular program among users to enter the engineering menu, which is very convenient and quick to use. After downloading it, open the menu item Android Testing which contains battery and phone information, usage statistics, and Wi-Fi information. To enter the engineering menu, select the item Engineer Mode.
Outcomes
In conclusion, I would like to warn you that it is better to enter this menu and make changes only when you know exactly what you are doing, otherwise you run the risk of breaking or spoiling something. Good luck!
Majority Android devices have hidden functions, which include the engineering menu of Xiaomi, and of any other phone. It is hiding first of all from inexperienced users so that they do not break the wood.
What is the engineering menu for?
The engineering menu is used by developers for the final configuration of the device. Here you can check the operation of all sensors and test the main components. In total, there are about 25 different types of tests.
How to open the engineering menu on Xiaomi smartphones?
To enter the engineering menu on devices Xiaomi Redmi Note 3 Pro, Xiaomi Redmi 3s, Redmi 3 (this method is suitable for all Xiaomi smartphones) - you need to enter in the dialing mode: *#*#6484#*#*. If this code didn't work - try *#*#4636#*#* .
Another way - go to Settings >About the device... Here you need to click 5 times on the inscription "Kernel version" and the menu will open.
The menu consists of five items:
- Automatic Test. All parameters will be tested automatically.
- Single Item Test. Here you can run any of the tests separately.
- Test Report. Here you can see the test results.
- SW add HW version. Find out the version of the smartphone.
- Device View. All information about the equipment of the device.
If everything is clear with points 1,3,4,5, then the second needs to be told separately, since it includes a bunch of tests.
- Key - check for functionality of physical buttons
- Blacklight - testing the display for brightness
- TouchPanel - sensor testing
- TFlash - check memory card
- Bluetooth - searches for all available devices
- SIM Card - check for availability of SIM cards
- Vibration - vibration test
- Loopback - tests the spoken microphone for recording and playback
- LCD - display colors
- GPS - satellite search
- Gyro - gyroscope operation
- G-sensor - speed sensor
- Proximity Sensor - responsible for the screen attenuation during a conversation
- Optical Sensor - optical sensor
- Magnetic Sensor - magnetic sensor
- RTC - built-in clock
- Speaker - checking the spoken dynamics
- Receiver - check the standard speaker
- Headset - test the headphone jack, headset and sound playback
- LED - notification indicator
- FM - radio check
- Camera - testing the camera and flash
- Battery - battery and charging performance
- Wi-Fi - looking for access points
- Torch - flashlight check
As you can see, using the engineering menu, you can get a lot of information. An experienced user can use it to roll back the smartphone to the standard (factory) settings, test the operation of all sensors, find out more detailed information about the device, optimize battery consumption, and much more.
During the operation of any device, over time, failures of various modules occur. This can be a communication module, video chip, processor, sensor, or display. The source of such defects can be the built-in firmware of the device. To identify these defects, there is a special engineering menu, where you can check any of these modules.
You can also test following functions:
- setting the rear and front camera
- microphone setting
- sound settings in the main and spoken dynamics
- full customization the network
- restore / copy IMEI
- optimization of battery consumption
- testing GPS module
Entrance to the engineering menu
Xiaomi smartphones are provided with model range which you can familiarize yourself with by visiting the online store, several ways to launch the engineering menu:
1) application "settings";
2) entering a special code;
3) special applications.
1. Through settings
This method is the safest, it can be applied to any smartphone with MIUI firmware.
We find the gear icon, scroll to the very bottom, select "About phone".
We find the line "Kernel version", then, you need to click on it 4 times. When you click on this line, the message "Remaining clicks to open the engineering menu: 3" will appear. I tested this function on xiaomi redmi 5 pius, Mi6 and Mi Mix Pro, but I can say with confidence that it works on all devices from Xiaomi.
After these simple steps, the engineering menu itself will open:
2. Entering a special code
This method requires special care from the smartphone user!
Open the dialing menu (this can be any application where you dial the phone number to call), enter * # * # 6484 # * # * - the engineering menu will automatically open. This method is suitable for all Xiaomi devices.
You can also enter the following code: * # * # 4636 # * # * - will open the "phone information":
Note: erroneous code entry cannot lead to the failure of the smartphone, however, it is quite likely that you will lose all the information accumulated in the device.
3. Special applications
If for some reason it was not possible to use the first two methods, there is also a backup option for launching the engineering menu - special software.
There are many programs that are designed to launch the engineering menu. The simplest one without unnecessary advertising is Tool Hero. The program allows you to easily manage the professional settings of your smartphone. It allows you to copy, save and restore IMEI, work with recovery, clear memory and card, delete system applications, startup management, QR scanner management.
We think that many have had such cases when, after a while, after buying a "gadget" (smartphone, tablet, laptop, etc.), certain problems in its operation were revealed. 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 be inoperative (this could be a Wi-fi module, 3G (4G), Bluetooth, 3.5 mm jack for connection headphones, etc.). If a new device was bought, then in a couple of days, something could hardly happen to it (unless, of course, it was drowned, dropped, etc. during this period), from this we can conclude that this is a factory defect. In this article, we will tell you how to test a device for defects using the Engineering menu before purchasing.
ENGINEERING MENU Is a built-in utility that allows you to view data about installed components in a smartphone (tablet), as well as check their performance. 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 in the same model smartphones Xiaomi, different display matrices can be installed. The engineering menu (hereinafter - "IM") allows, before buying, with the type of matrix, which, in your opinion (or in the opinion of experts), is considered the best, and immediately check it "for broken pixels". You can also see which camera modules are installed in this device.
In "IM" a large number of tests are presented that can easily identify a malfunction of any smartphone module. Also, there is the ability to customize some components, for example, sensor calibration. Below we will describe in more detail all the possible functions of the "IM".
HOW DO I GO TO "THEM"?
There are several ways to enter:
1.In standard application "Phone" (in third-party "dialers" - does not work), dial: *#*#6484#*#*
This combination is the most common, but if it didn't work for you, then try the following options: *#*#3646633#*#* or *#*#4636#*#*
2. Go to "Settings" - "About phone" - press 5 times in a row on the item "Kernel version"
until "IM" appears
Now let's consider 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 the following items are tests. When you exit this item, "IM" will offer to take a full test.
If you press "OK" now, the whole cycle of tests will start, if you select "Cancel", you will return to home page"THEM".
So, let's move on to the tests and their description.
2. SIM Test
At this point, the ones installed in the smartphone are tested SIM - cards, an example of passing the test looks like this:
To go to the next test, click "OK". When you click "Error", you return to the main page "IM" (this will be the case in all tests, further we will not focus on this).
3. Color
This test is for detecting dead pixels on the smartphone screen... If you have the opportunity to conduct this test before buying a smartphone (you buy in a store, not order online), be sure to do it(of course, this is only relevant for displays with an IPS matrix, Amoled displays are devoid of this drawback, due to design features). If you find the presence of a broken pixel (or several) after the purchase, no seller (be it a regular store in your city, or an online store) will not replace it with another one with a normal screen. the presence of a dead pixel (even several) is not a warranty case, their presence is allowed, and in such an amount that you can never dispute that your phone really has a "factory defect". There were times when a smartphone ordered through an online store (Aliexpress) had a broken pixel (it glowed white on a black background, right in the center of the screen, it looks very "disgusting", especially when watching a video). It took a very long time to "communicate" with the seller about this (since a dispute was opened), who did not want to compensate part of the cost of purchasing this smartphone in any way, arguing that it was not considered a marriage. As a result, we managed to agree on the amount of compensation of $ 10 (when the dispute was opened, more was declared). What is most interesting, this pixel was cured using the program "Pixel Fixer", and to this day the smartphone has no problems with displaying information on the display (more than 1.5 years).
On the desktop, in everyday use, a dead pixel may not appear. It can glow in some color on a black background, or vice versa, on white. There are also options for the glow in other colors. That is why this test presents the basic colors, in which it is quite easy to identify a dead pixel, if any. When conducting this test it is better to turn on the maximum screen brightness.
4. Touchpanel selftest
The screen test takes place without user intervention, after which the next test proceeds.
5. Play Music on SD
This test is designed to check the main speaker of the smartphone... Through this speaker, female voice the numbers that you must type on the numeric keypad displayed on the screen are played.
6. Receive
Test conversational dynamics... The principle for 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
Displaying information about MAC - address Bluetooth adapter.
11.bluetooth
Examination Bluetooth module... Scans and displays a list of devices in range
12. Light sensor
Testing Light sensor(required for correct work auto screen brightness)
13. Proximity sensor
Testing Proximity sensor(used to turn off the screen when talking)
14. Motor
Test Vibration motor(vibration on calls, messages, notifications, etc.)
Tests available: Short Vibration- short vibration and Long Vibration- long vibration.
15. KEY
Button test: " Menu», « Home», « Back», « Volume +», « Volume -», « Incl. (Off.)»
The pressed buttons, if passed the test, are marked in green.
16.touchpanel_gr
Examination touchscreen screen... To check, you need to paint over all the white rectangles on the screen by sliding your finger over them. Thus, you can check the entire surface of the touchscreen for performance.
17.touchpanel_bow
Another one screen check... In this case, you need to draw something like a graphic key, displayed by lines on the screen.
18. Led
Backlight light- maximum screen brightness
Backlight dark- minimum screen brightness
Red LED- red light of the event indicator (if there is an indicator)
Green LED- green event indicator
Blue LED- glow of the event indicator in blue
Torch0 on- turning on the flash (flashlight)
Torch1 on- turn on the second flash (if present)
Key led- checking the illumination 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. Front camera check
21. Mic speak Loop
Quality checking main microphone, the signal level must 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, while you should hear what you are saying in the conversational dynamics.
23. Sub mic to speaker loopback
Examination additional microphone, which is used for noise cancellation during conversation (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 (through various applications) volume mute when incoming call turning the smartphone screen down or assigning an action when shaking the smartphone.
25. Magnetic sensor
Magnetic sensor (magnetometer), 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 the rotation of the screen.
27. Hall Sensor test
Hall sensor - a sensor that is able to detect the presence, intensity and change in intensity magnetic field(not available in all smartphones).
Is used for:
- digital compass, used to improve positioning.
Is interaction with popular cases for smartphones and tablets.
28. Headset plugin in
Test headphone connection(headset) into the 3.5 mm jack (if available).
29. Headset key
Examination buttons on the headset(headphones), if any.
30. Headset loopback
Examination microphone on headset(headphones) if there is a microphone. If it is available, speaking into the microphone, you should hear what you are saying through the headphones.
31. FM
Examination FM - radio. We select the known station frequency (although there is also an automatic station search), check the result.
32. Headset plug out
Checking the disconnection of the headphones (headset).
33. Charger plug in
Examination charging smartphone when connecting the charger.
34. Charger plug out
Examination disconnecting the charger.
35. OTG plug in
Testing work OTG... Connecting a flash drive to a micro USB (Type-C) port with an appropriate connector or through an adapter.
36. OTG plug out
Examination disable OTG device.
37. Battery capacity
Test smartphone battery... Information about the temperature and battery charge is displayed.
38.SD Card
Testing SD cards... Information about the installed memory card in the smartphone, about its size and free space on it is displayed.
39. IR Send Test
Examination infrared transmitter, if available. Used to control household appliances as a remote control.
After passing all the tests, you will see something like the following:
Successfully passed tests are marked in green with the inscription "Pass", in red with the inscription "Fail" - failed tests.
OUTPUT:
As you can see from the review of tests, "IM" allows you to test, almost all elements of the smartphone, and identify (if any) malfunctions. It is also possible to calibrate certain sensors, this can help if any 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 the smartphone before purchasing, you may be able to identify the malfunctioning and replace the smartphone with another one in which these problems are absent. This, in turn, can save you a huge amount of time and nerves if you have to contact a service to repair or replace your smartphone under warranty.
Almost every smartphone from time to time has some kind of software failure, the cause of which lies in the firmware of the device. In order to determine the cause and type of the problem, there is a special engineering (service) menu in which you can test any module of your Xiaomi and find out what the essence of the problem is.
From this article, you will learn how to enter the Xiaomi engineering menu, what it is, and what are its functions.
So, it is a collection of hidden device parameters, the purpose of which is to test and correct various errors in its operation. There are simply no such settings in the standard menu, since a user who does not have sufficient experience, knowledge and skills can knock correct settings, thereby harming the system - often as a result of such an "intrusion", the connection in the smartphone is lost, it cannot call, and so on. Therefore, be extremely careful with the service settings of the engineering menu.
The main functions of the engineering menu on Android
- Service test of GPS operation;
- Setting up the microphone and camera;
- Many settings for sound and its volume in the main speaker, as well as in the spoken one;
- Setting up communication networks;
- IMEI number recovery;
- Optimization of the OS to reduce battery consumption.
- How to enter the engineering menu
Let's look at two main methods that will help us enter the Xiaomi engineering menu.
- Through settings. It should be noted that this way universal, that is, suitable for any Xiaomi phone... So, go to the phone settings, at the very bottom of the list, click on the item "About the phone"... Find the line "Kernel version"And click on it three times. Most likely, at the bottom of the screen you will see the inscription "It remains to press 2 more times"- we carry out this action... Ready!
- Xiaomi codes. Open the phone dialer and enter special code *#*#6484#*#* ... After pressing the call button, you will see the required list of modules for testing on the phone display. If entering with this code did not help, try several other codes: you need to replace the numbers with 3646633 or 4636.
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If the engineering menu does not open
If you failed to perform the desired action using the first two methods, try using special software. We have two great applications in stock that will solve the problem: Mobile Uncle Tools and MTK Engineering. You can find a few more similar apps yourself.
- Mobile Uncle Tools is the most powerful program ever. It allows you to perform many different operations with the telephone system. After entering it, click on the button "Engineering Mode", And then select "Engineering menu" (MTK)... Important! To use this program you need root rights(how to get them - in a separate article). Since the author of this program is a resident of China, you may come across either the Chinese or the English version of the program;
- MTK Engineering. Install the app, sign in. Click on the item "Android Testing", after which you will see information about the phone, battery, wi-fi and complete usage statistics. But in the paragraph called "MTK Engineer Mode" you will meet all the service settings. The engineering menu that appears will probably differ slightly from the list of modules in the Mobile Uncle Tools program or from the items called by the first two methods, but its essence does not change from this - you can also adjust the volume, battery consumption and generally change almost any parameters of your device.
Outcome
The most important thing we would like to say at the end of the article - please, be very careful when fine tuning your Xiaomi by calling the engineering menu. If you suddenly need to check any of the phone modules or fix problems, you do not need to immediately change the settings in the engineering menu of the smartphone, but rather look again useful information or an article on a specific topic for a specific case on our portal. For your convenience, we have translated the functions of the engineering menu:
- Key - test of mechanical keys for performance;
- Blacklight - screen brightness test;
- TouchPanel - phone sensor test;
- Tflash - check the memory card;
- Bluetooth - search for all devices in the range;
- SIM Card - testing SIM cards and checking their availability;
- Vibration - testing vibration;
- LCD - check the color of the display;
- GPS - search for various satellites;
- Gyro - gyroscope;
- G-sensor - we test speed sensors;
- Proximity Sensor - this function is responsible for dimming the display when making a call;
- Optical sensor - optical sensor;
- Magnetic sensor - magnetic sensor;
- RTC - clock (built-in);
- Receiver - test of the main speaker;
- Speaker - test of the spoken dynamics;
- LED - test notification indicators;
- FM - radio test;
- Headset - checking the headphone jack and playing sounds
- Camera - test the camera and its flash
- Battery - battery charging and performance test;
- Wi-fi - search for access points;
- Torch - testing the flashlight.
