For many people, buying a new tablet or smartphone is a real event. Every owner expects that new gadget will delight him for many years reliable performance and the absence of problems associated with its operation.
And in this case it doesn't matter who the assembler of the device is and what operating system is installed on it. But it often happens that modern mobile devices can hardly be called ideal.
Some time after the start of use, moments appear that the owner will probably want to fix in one way or another. Some are trying to finalize the software part of the mobile assistant to perfect condition. It all depends on what is considered ideal. One of the most available tools in the Android mobile operating system is the engineering menu.
Engineering android menu: tuning secrets
At the final stage of configuring the software shell of a mobile device based on operating system Android, developers use the so-called Android engineering menu. The engineering menu is understood as the interface of a special program that allows you to make changes to the operation of the device, as well as view information from sensors and perform technological tests. Reckless use given element may lead to unpredictable consequences. Most often, access to the engineering menu is hidden from users. However, his secret is essentially already known to many. To understand how you can call the engineering menu, just spend a few minutes looking for recommendations.
Important Points
Exit to the engineering menu "Android" can not be performed on all mobile devices. In order to take advantage of its capabilities, you need to make sure that the gadget meets a number of requirements. First of all, the CPU of the device must be manufactured by MediaTek. On many low-end Spreadtrum models, Qualcomm's popular Snapdragons, and various Tegra Nvidia and it is useless for Intel to try to launch the engineering menu, since it is missing. You will not be able to achieve performance even if an appropriate application is provided.
In addition, various modified operating systems, such as the popular CyanogenMod, do not allow you to run the configuration program. This is due to the fact that initially these systems were developed for devices with a Qualcomm processor that do not support the Android engineering menu.
It is also desirable that the operating system be original or at least created on a basic basis. The application file itself must be present among the programs, being hidden from the standard explorer. So, for example, some manufacturers of mobile gadgets, after making the necessary settings for the software part, simply delete the Android engineering menu. In this case, recommendations for using the engineering menu are useless.
Using Secret Combinations
To get into the engineering menu settings in the Android operating system, you can use several methods. It is impossible to say which of them is better, since a direct comparison would be incorrect. Let's consider each of these methods in turn. One of the oldest options, which was used in the "ancient" models of tablets and smartphones, is that in a special program - a dialer, the user had to dial the engineering menu code. The operation was carried out similarly to checking the balance on the account. If the device recognizes and accepts the combination, the setup application starts. Some mobile device manufacturers use their own modified code. Therefore, the standard set will not work here. In other situations, to call the engineering menu, you must dial the following combination of characters "*#*# 36 46 63#*#*". That's all.
The usual way
Using a secret combination of characters may not be convenient in all cases. The user can simply forget correct order following numbers. In the case of a modified set, it will be easier to use the program instead of finding the correct order of the characters. One of the most famous apps is Mobile Uncle Tools. This application is distributed free of charge, so the user will not have problems finding and installing it. At the time of this writing, current version was 2.9.9 or build 3.1.4, which has additional support for new processors.
In order for the program to work correctly, the user will first need to get root rights on their gadget. To obtain root rights, you can use various applications, for example, SuperSu or KingRoot. In this article, we will not talk about the features of working with a rooted device, since this is a separate rather voluminous topic. When the application is launched, you will need to select the third item, which is called Engineer Mode. Next, in the window that opens, select "Work with MTK". When a question about granting root access appears, you need to confirm the operation.
Restoring access to engineering mode
In the event that the manufacturer of the mobile device has decided to prudently remove the configuration program in order to ensure the security of the operating system, it will be possible to install it again. To do this, the user will need to find an installer on the Internet that restores EngineerMode.apk. When you find this component, you will only have to install it. Due to the abundance of clone analogues the exact name we will not indicate. You can simply copy the specified file to the system folder (system\app). After performing these operations, you can use any of the following methods to access the engineering menu: you can dial a number or call the menu directly from the program interface. It is worth noting that the user will need root rights to perform this operation.
Miracle program and its possibilities
Setting up Android through the engineering menu opens up the possibility for the user to solve several problems at once critical tasks. In particular, here you can adjust the microphone sensitivity and speaker volume, reduce power consumption, limit the scanning of unnecessary ranges and reduce the search time for satellites. Let's take a closer look at the above functions.
How to increase the volume?
The volume of the call using the engineering menu is increased quite simply. To do this, select the "Audio" section. You will see a list of available modes. The Ring subsection of the LoudSpeaker Mode section is responsible for the system speaker in the system. Do not change the value of the parameter in the first window. In the second window, you can set a higher value for the parameter. After finishing editing, click on the Set button, which is located here. Next, you need to restart the device, while correctly exiting the program.
Operator Frequencies
To optimize the power consumption of your mobile device, you can try disabling the scanning of unnecessary frequency bands. The standard frequencies for working in 2G and 3G networks in our country are 900 and 1800 MHz. A pair of 850 and 1900 MHz is responsible for the American standard. To enable or disable the band you do not need, you need to use the Band Mode item in the engineering menu. Here you need to alternately go to the settings for both SIM cards and check the boxes next to the desired items. Pressing the Set button serves as confirmation.
How to improve GPS?
To improve the performance of the global positioning system, you must select the Location item in the Android engineering menu. Next, use the Location Based Service item and open the EPO. Here you need to make sure that the Download and Enabled items are ticked. Then you need to return to the YGPA item, select the information section and press "Full" - "Cold" - "Restart" in turn. Then you need to select the item Satellites or "Satellites". Until the answer is fixed on the map. This whole procedure will take 2 to 5 minutes. You just have to exit the engineering menu, close the program and reboot the device.
What is rooting for? android devices and what opportunities it gives is known to a fairly large number of users, which cannot be said about the hidden advanced menu of hardware settings, also called the engineering menu. Few people know about these settings, and even fewer mobile device owners know how to use them. What is the Android engineering menu and why is it needed?
Engineering menu Android is nothing more than a special routine designed for developers to test the operating system and device sensors. The interface of this program is represented by a set of options that allow you to change the hardware configuration of the mobile device. With its help, you can get comprehensive information about the hardware of the gadget, test the processor, RAM and physical flash memory, wireless connection modes, configure the settings of the camera, display, microphone, speakers, and much more.
Entering the engineering menu
All this, of course, is good, but how to enter the engineering menu if there is no corresponding option in the Android interface? Entering the advanced hardware settings menu is carried out using special code, entered in the line for dialing a phone number. The menu should open immediately after entering the last character of the combination, but in individual cases you may need to press the call button.
There is nothing complicated in the procedure itself, however, it should be borne in mind that for different models mobile gadgets have their own codes. Below we have provided a list of codes for the most popular manufacturers.
The engineering menu codes in Android are universal, however, their correct operation on phones with "left" firmware is not guaranteed. To access hardware Android settings you can also use special programs, for example, "MTK Engineering Menu" or "Mobileuncle MTK Tools".
Such applications are especially useful on tablets, the firmware of which does not provide for the presence of a “dialer”. The interface and the set of available options in these programs are somewhat different, however, it will not be difficult to deal with them.
Whichever method you use, you need to exercise maximum caution when working with the engineering menu. Before starting work, it is strongly recommended to write down all the values of the original parameters in order to be able to restore the settings. Experimenting with the engineering menu just to find out what will come of it is unacceptable, as you can render your device unusable!
To get a list of engineering codes for a specific phone model, you can use special application Secret Codes available on Google Play. On some models of mobile devices, full access to the engineering menu may require superuser rights (root).
What can be changed using the menu
You know how to get into the engineering menu, now let's find out what settings you can make with it. The possibilities are more than wide. The menu subroutine supports changing the speaker volume and microphone sensitivity, built-in camera settings, audio settings, GPS, Bluetooth and Wi-Fi modules, turning off unused frequencies to save battery power. You can also test key components of your device and an external memory card, adjust I / O operations, determine the exact temperature of the processor and battery, and determine the level of harmful electromagnetic radiation.
Another useful feature is to gain access to the recovery mode - an analogue of the BIOS on computers, which in turn contains a whole set of settings. Recovery Mode features include resetting the device to factory settings, updating the firmware, creating a backup copy of the operating system, gaining root access, deleting sensitive user data. It is not possible to list all the options of the engineering menu within the framework of one article, the more sensors and components in the phone or tablet, the more extensive it will be.
Increase the volume of the phone through the engineering menu
And now we will demonstrate how to work with hardware settings using the example of one of the most popular operations and find out how to increase the volume on Android through the engineering menu. So, go to the menu using Mobileuncle MTK Tools or by entering the “magic” code, then find and open the Audio subsection. If you entered the menu through the Mobileuncle Tools program, this subsection will be located in the Engineer Mode high-order section, in other cases it is usually located on the Hardware Testing tab.
In the Audio subsection, the following options will be available to you:
- Normal Mode - the normal mode that works when a headset is not connected to the device.
- Headset Mode - headset mode, which is activated when headphones or speakers are connected to the smartphone.
- LoudSpeaker Mode - loudspeaker mode. Activated when the speakerphone is turned on, provided that a headset is not connected to the device.
- Headset_LoudSpeaker Mode - loudspeaker mode with a connected headset. The same as the previous one, but with headphones or speakers connected.
- Speech Enhancement - this mode is activated when talking on the phone without using the speakerphone.
There may be other settings in the section, for example, Debug Info and Speech Logger, but it's better not to touch them. Select the mode for which you want to change the volume level (let it be Normal Mode), select Type in the list that opens and indicate for which function we will change the volume. The following functions may be available:
- Ring - volume setting for incoming calls;
- Media - adjust the volume of the speakers when playing multimedia;
- Sip - sound settings for Internet calls;
- Sph - sound settings of the conversational speaker;
- Sph2 - sound settings of the second conversational speaker (option may not be available);
- Mic - change the sensitivity of the microphone;
- FMR - FM radio volume settings;
- Sid - it is better not to touch this parameter, otherwise there may be problems with the voice of the interlocutor.
Having selected a function, scroll through the current list, set desired value Value (from 0 to 255) and click to apply the new Set settings.
To change the volume level, you can also use the preset templates - the Level option. Most phones have seven levels, from 0 to 6. It is advisable not to touch the Max Vol setting, just as you should not set too high values for Value, otherwise the sound in the speakers will begin to wheeze. Other modes are configured in the same way in the Audio subsection.
Some models of smartphones and tablets require a reboot for the new settings to take effect.
Reset
And the last thing we'll look at today is resetting the engineering menu settings to factory defaults. It may be needed if, after making changes, the device began to work incorrectly. There are several ways to reset. If the system boots normally, go to the settings and open the "Recovery and Reset" subsection.
You can also reset the engineering menu by entering a special service code in the “dialer”. This is usually *2767*3855#, *#*#7780#*#* or *#*#7378423#*#*, but your phone model may require a different code.
Another option is to use the recovery mode, which was mentioned above. To get into it, use one of these combinations:
- Power button + volume down.
- Power button + volume up.
- Power button + Home button + volume up/down.
- Power button + volume up + volume down.
In the list of options that opens, select "wipe data / factory reset" → "Yes - delete all user data" → "reboot system now". The device will reboot and the settings will be reset.
There is another way to reset the engineering menu settings, but it requires superuser rights. Using any file manager with the support root rights, go to the root directory of the system, and then delete all or part of the contents of the folder data/nvram/apcfg/aprdcl and reboot.
Files in a folder aprdcl just responsible for the settings of the engineering menu. It is not necessary to delete all files at once. If you screwed up, say, with the audio settings, to restore the original settings, it is enough to delete the files that have the audio string element in their names. And one moment. Regardless of the reset method, always do backup your personal data and applications, as they may all be lost.
Access to the engineering menu of your Android smartphone is additional control over the gadget.
In addition, this is a real opportunity to change "immutable settings", enable functions blocked, but incorporated by the developer, and really improve (or spoil with inept intervention) your gadget.
Engineering menu - what is it
The engineering menu and hidden settings were present in the very first phones!
This gave and gives the opportunity to developers to configure and test gadgets in the most unusual modes.
True, most are still designed for smartphones and tablets based on the MediaTek processor.
Do not forget that if applications do not work correctly, you can make problems much bigger than the problem of getting into the engineering menu, so be careful.
In addition, it is not a fact that the first application you choose will work correctly on your smartphone.
Therefore, you will most likely have to download and install several options before you find one that suits you.
What parameters are available for configuration in the engineering menu
Of course, for different smartphones, the design schematics and menu functions may differ.
Therefore, when you get to this function, you can find slightly different options and menu items for different phones.
Therefore, for example, a device based on Qualcomm Snapdragon will have rather meager capabilities and everything will be limited only to viewing various parameters and testing them.
At the same time, smartphones based on MediaTek will have much wider opportunities.
At the same time, remember that these settings are hidden by the developer for a reason.
When changing them, you must be aware of what you are doing, otherwise it may end badly for your gadget.
Important! Make it a rule to never change settings that you don't know the value of or are unsure of how it will affect the operation of the device. Otherwise, you risk spoiling your mood for a long time.
Information that can be obtained through the menu
Basic data available on any type of smartphone:
Phone IMEI– personal identification (unique) number of the device.
Phone number- sometimes not indicated;
Net- your operator;
Roaming– are you in roaming;
Network information– are you being serviced and is the network turned on;
Call forwarding- Is it used on this moment;
Network type, network index;
Signal volume.
Your location coordinates.
There is also a section on battery it will contain the following data:
1 State– whether the battery is currently being charged or not.
2 Charge level- in percentage charge/discharge.
4 Battery Type- production technology
5 Time elapsed since last charge.
In addition to this information, the engineering menu may contain much more various useful data, depending on the type of menu provided by the developers.
Testing a Smartphone with Engineering Mode Capabilities
It often happens that with all the correct visible settings, the phone does not function correctly.
The speed of the processes does not correspond to the declared parameters, the amount of random access memory less than it should be, failures in operation or installation of valid applications are detected, as well as the absence of proper functions.
And the standard user menu does not give any way to find the cause of such problems.
The engineering menu just makes it possible to conduct in-depth testing of the system and the device itself for hidden malfunctions or incorrect set parameters.
The following modes are available:
1 General (Automatic Test)– this test will test every parameter of the smartphone;
2 Report– a full test report is displayed;
3 Testing of all functional modules, processor, memory cards and SIM cards, vibration, speakers, microphone, connectors - literally everything that the phone is stuffed with can be checked for adequate operation.
4 Screen tests- such parameters as brightness, clarity, sensitivity, reaction speed, correspondence between visualization and touchscreen;
5 Job Testing gyroscope, cameras, accelerometer, flash, and more.
This is what test mode looks like.
To open it, you need to go to the appropriate section (most often "Testing" or something like that).
This is only a small part of what the engineering menu can provide for testing, while, as you might expect, different phones will have various tools for testing and items of tested objects will be different.
However, the benefits of such opportunities cannot be overestimated.
Such testing can help to understand whether changing the settings will help in solving a particular problem, or needed.
Or maybe there is a problem at the level of physical damage, and it makes sense, for example, to replace the part.
Also, a similar test will be useful when buying a used device.
Thus, you can immediately detect non-working or error-prone modules and understand whether it is worth buying a gadget or not.
Let's consider examples of using the mode.
AND interesting features hidden from prying eyes.
Why are they hidden? Firstly, so that an inexperienced user does not break anything, and secondly, they are needed in especially rare cases and are not used regularly. Today we will talk about the engineering menu - a section for programmers, testers, geeks, experienced users and those who want to get into the very "heart" of the gadget's settings.
What is the engineering menu?
This is a special program or system partition, which developers usually use at the final stage of configuring the software platform of a mobile device. With it, they bring last changes into the operation of the device, check the functioning of various sensors and perform testing of system components. Also, the hidden functionality of the service menu is used to obtain a large number system information, conducting various tests (about 25 pieces) and setting up any Android parameters - various sensors, mobile networks, equipment, etc.
The engineering, service or system menu is available on smartphones and tablets running on a MediaTek processor. On the Qualcomm chipset, it is either cut down or absent altogether.
Attention! This section is intended for advanced users who are fully responsible for the consequences. Careless actions can harm the file system and disable the smartphone.
How to enter the engineering menu?
To enter the engineering menu, you need to enter a special command in the dialing application: *#*#3646633#*#*. On some versions, the code *#*#4636#*#* or *#15963#* may work.
If the engineering menu code on Android did not work, or there is no dialing application on the phone (relevant for tablets that do not support calls), the MobileUncle Tools or MTK Engineering applications, which can be downloaded for free through Google Play, will help.
After entering the command or launching the application, the desired section will open. Perhaps it will immediately close - you need to have "Developer Mode" activated on your smartphone. To do this, go to the gadget settings, find the kernel version there and quickly click on it 5-10 times in a row.
Engineering menu functions
The engineering menu is divided into several categories, each of which will be discussed separately.
- Telephony. Here are all settings related to mobile communications. For example, you can activate or deactivate certain BandModes (frequencies for 2G / 3G / 4G operation), check the operation of SIM cards, and even turn off mobile data transmission in the background.
- Connectivity: Configure Bluetooth, radio, Wi-Fi, and Wi-Fi CTIA settings. For example, in the radio settings, you can specify the radio wave, the type of antenna (you need to use headphones) and the sound format (mono or stereo). The radio will play directly from this section.
- Hardware Testing. In this section, you can configure the operation of various components of the device, in simple terms, hardware: headphone and speaker sound levels, microphone sensitivity setting, various camera parameters (photo aspect ratio, ISO, HDR, focus adjustment and much more), touchscreen operation, sensors (calibration right there) and so on. This category is very large and global, each section needs to be dealt with separately and have serious knowledge and skills.
- Location (Location). In this category, you can configure the GPS operation, see how many satellites the gadget has caught, and simply conduct tests.
- Log and debugging (Log and Debugging). Here, logs (logs) of the battery (charge percentage, voltage, operating time, temperature) and other little-known functions are kept.
- Others. It contains two functions that are also unknown to the average user.
Engineering menu settings
The engineering menu opens up huge opportunities for setting up the phone, we will consider the most interesting ones in detail.
- SAR Test - determination of the level of harmful radiation from a smartphone or tablet.
- Connections - testing available types of wireless connection: Bluetooth, Wi-Fi, WLAN CTIA and FM receiver.
- Audio - control the sound in the speakers, microphone and headphones. How to increase the volume of Android through the engineering menu,.
- Camera - Set up various camera settings.
- Turning on the current camera - the indicator of the working current of the camera is displayed (in our tablet it is 2 mA).
- CPU stress test ( CPU) - checking the stability of its operation, identifying errors in the operation of the processor-memory channel, testing the cooling system and power supply of the processor.
- Device Manager - Activate SMS auto-registration, manage configuration settings.
- Disable detection - setting the frequency of the signal.
- Display - Sets the Pulse Width Modulation rate cycle, which affects the perceived brightness of the screen by quickly turning the backlight on/off; backlight setting; controller behind the vertical and horizontal lines of the display.
- Wake mode - activating it will not allow the device to "go" into sleep mode.
- IO - control of data input/output operations.
- Memory - detailed information about the RAM module.
- To the degree - detailed information about the battery (the strange name of the section is most likely due to errors in the automatic translation of names in the application, but the ability to switch to English language missing).
- SD card test - the name of the tab speaks for itself.
- Touch screen - test the sensitivity and reaction of the display when pressed, as well as set its additional settings.
- USB - testing the operation of the USB port.
- UART/USB switch - switching between two modes of data transfer.
- Sensor - calibration (setting the clarity and sensitivity) of the touch screen. Standard Methods.
- Location - Test GPS performance and determine the exact location.
- Battery Log - details information about the battery and the ability to activate the recording of information about the battery consumption.
- MTKLogger - collection of system logs (MobileLog, ModemLog and NetworkLog).
- Temperature gauge - shows the battery and processor.
- Parameter font - change the font size.
When installing the application, some features may not be available without .
Xiaomi engineering menu
Despite the fact that our test Redmi 2 runs on a Qualcomm Snapdragon 410 processor, it also has the functionality we are interested in. To enter it, you need to tap on the "Kernel version" item several times in a row.
The menu is represented by five items:
- automatic test. Automatic test of all device parameters.
- Single Item Test. Each of the 25 tests is taken separately. We will discuss this in detail below.
- test report. Report on the passed texts and their results.
- SW add HW version. Information about the version of the smartphone, IMEI and other numbers.
- deviceview. Smartphone hardware data.
Of course, the most interesting point is the Single Item Test, where you can take great amount tests.
Let's make a reservation right away that in the device we tested it was not possible to configure something - only a performance check. At the end of each procedure, its status should be noted: successful (success) or not (failed).
- Key - operability of physical buttons. It is interesting that it was not possible to pass it successfully, because when checking the power button, the smartphone goes out.
- Backlight - display brightness.
- touch panel. The touch screen test includes two procedures: "Crossed calibration" and "Touch panel calibration". The first checks the so-called "swipes", the second - single taps on the screen. An easy way to calibrate your display.
- TFlash. Testing a memory card with two results: either everything is in order, or the card is damaged.
- bluetooth. It searches for available devices.
- SIM card. SIM card test.
- vibration. The gadget vibrates - everything is ok.
- RTC (Real Time Clock) - operation of the built-in clock.
- Speaker. Conversational speaker testing. How to pass it, we did not understand. We will be grateful if you tell us in the comments.
- Receiver. It is translated as a receiver, recipient, but music plays during testing.
- Headset. Testing the 3.5mm jack for headphone detection, audio playback, and support for headset control buttons.
- LED. Notification indicator, everything is obvious here.
- FM (radio). We press the search for a wave (Search), and if noise is heard in the headphones, then everything is working properly.
- camera. Everything is obvious: a test of the main and front optics, as well as a flash.
- battery. An informative section with information about the correct operation of the USB cable (charging), battery status, its charge level and temperature. Similar data can be obtained more.
- WiFi. Detection of nearby access points. There are no settings.
- Torch (flashlight): shines / does not shine.
- The loopback test includes a speaking microphone test. First, click Recording (record), then Playing (playback).
- LCD. Screen colors.
- GPS. Finding available satellites.
- Gyro (gyroscope). Three parameters - X, Y, Z - change depending on the position of the device in space.
- G-sensor (Accelerometer). Twist the gadget in all planes and turn it over. Three parameters should take values ok.
- Proximity Sensor (proximity sensor). It is usually located near the speaker and is designed to turn off the screen of the gadget during a conversation, thereby eliminating accidental clicks.
- Optical and Magnetic Sensor (optical and magnetic sensors) - items that are incomprehensible to us, share your knowledge in the comments.
After passing all the tests, you can go to the Test Report section. As you can see, our "animal" is in great shape and passed all the tests, which is very pleasing.
conclusions
Above, we have listed the main sections of the engineering menu available on the tested devices. Now let's summarize what features the user gets during installation:
- Formatting, resetting to factory settings.
- Testing the operation of individual elements of a smartphone or tablet, such as sensors, touch screen sensitivity and calibration accuracy.
- Detailed information about the device and its parts. For example, you can track the battery consumption since the last charge and view the statistics of the programs used.
- Energy optimization. As an option, unnecessary frequency ranges are turned off. In Russia, the standard indicators for working in 2G and 3G networks are 900 and 1800 MHz, while in the USA - 850 and 1900 MHz.
Every Android device has a specific mode called Android Recovery. It is used to restore the correct operation of the phone. In it, you can reset all smartphone settings back to factory or originally installed. In addition, this mode is used to flash the phone and get Root rights. How to enter the recovery menu on Android, you will learn further from this article.
The ways to get into the recovery depend on the brand and specific model of your phone. The first thing you want to do is dig into the manual or search the Internet for information about the exact model of your phone. Here we will indicate several relatively standard ways to open the recovery menu for different devices. But first you need to do something else.
The first thing is reinsurance. Making a backup
Backup - from the English "back up" - this is the common name for the process of backing up data on your phone. Why do it? If something goes wrong and your data disappears, you can still recover it. What can go wrong? Sometimes flashing the phone or opening access to root rights, instead of improving the functioning of the system, on the contrary, “breaks” it. Therefore, if you are interested in how to enter the Android recovery menu in order to upgrade it in the future, make a backup first.
Most often, this option is hidden in the "General Settings" section. Most likely, you will see the inscription " Backup and reset". As you can see, if the phone is working properly, it is not necessary to enter the recovery menu to reset the settings. You can do this in normal operation.
How to enter the recovery menu on Android: basic button combinations
If you need a recovery mode because your phone refuses to behave well, then, naturally, we will not be able to reset the state to restore the system through the "Settings". Usually, in order to get into the recovery, the volume buttons and the power button are used.
The combination of these depends on the model and brand of your phone. You will most likely need to press the following at the same time:
- "Volume up" and "Power";
- "Volume down" and "Power";
- "Home" (button at the bottom of the screen) and "Power";
- both volume buttons, "Power" and "Home" (obviously, the creators of Samsung assume a very virtuoso finger control of the owners of their devices).
What is Android Recovery?
After you entered the recovery, most likely, you will see the picture that is shown in the photo.
This is an example of a standard recovery menu preinstalled on the device. Depending on the model, Android version, and brand of your smartphone, it may look different. You will navigate through this list using the volume keys, and use the power button as a confirmation button. IN this list has the following features:
Custom recovery menus
If you downloaded a special recovery menu to your phone, then it, unlike the pre-installed or "native", will be called custom. The main reason for the existence of alternative recovery menus is in the more advanced functionality of custom versions and various additional features, For example, in the installation of unofficial firmware.
The most popular custom menus are Clockwordmod Recovery and Team Win Recovery Project. If the first one is similar in control to the usual recovery menu - using the volume and power buttons, then when the second one is working, the touchscreen remains active. As in the main mode, you control the process by touching the buttons on the screen (see photo below). This is undoubtedly convenient if the screen works without errors. If the "glitch", due to which you need to enter the recovery, is on the screen, difficulties will arise.
Debugging via USB: how to enter the recovery menu on Android from a computer?
In order for you to have the opportunity to enter the phone’s recovery menu from your PC, first do not be too lazy to find and download to your computer special program which makes this possible. But even before that, look in the settings of your device for the option "Debugging via USB" - you will find it in the section for developers. Then download AdbRun on PC. And already from it, knowing the commands for the console, you can control some of the functions of the recovery menu.
Now, if suddenly the Android recovery menu does not open in the usual way on the phone itself, you can connect the device to the computer using a USB cable and manage from there.
We leave beautifully: how to leave the menu
If you have entered this mode out of curiosity, and now you are worried about how to exit the recovery menu on Android so that this does not lead to irreversible changes to your data, we will dispel your concern.
Most often, exiting is much easier than entering the menu. In most well-known recovery menus, this item will even be the first on the list - Reboot System Now ("Reboot the system now"). Even if this fails, you can cheat and do what all users usually do in the first place if the phone "glitches": reboot using the power button, remove and reinsert the battery, or in the end just leave the phone to discharge - afterwards it will turn back on in normal operation.
