In smartphones and tablets based on the operating system Android systems there is something called engineering menu, in which are hidden additional settings devices. The settings are usually intended for specialists. However, if desired, a simple user can also use them, for example, to increase the sound on his smartphone.

How to enter the engineering menu? Let's show an example on a smartphone based on an MTK (MediaTek) processor.

Open the Phone app.

Dial the following combination - *#*#3646633#*#*. In the screenshot below, the symbol at the end is missing, because when you enter the full combination, the engineering menu immediately opens. If nothing opens for you, try pressing the call button.

The engineering menu has opened in front of you.

Here you will see many different items and parameters, many of which can be changed.

You should only change parameters if you know exactly what you are doing. If you don’t know, it’s better not to touch anything in the engineering menu to avoid problems.

You can also download an application for MTK. On Google Play Market Write mtk engineering mode in the search and you will see many applications that support the engineering menu. The application only works for devices based on MediaTek processor.

On Samsung Galaxy The engineering menu is opened by typing the command *#0011#. This is what you will see in front of you:

To use, press the Menu button on your smartphone and select Back.

Codes for entering the engineering menu

Here are other codes for entering the engineering menu that we managed to find. The performance of some of them, alas, is unknown.

• Samsung - *#*#4636#*#*, *#*#197328640#*#*, *#*#8255#*#*, *#0011#

• LG — 3845#*855#

• Acer — *#*#2237332846633#*#*

• MTK - *#*#3646633#*#*, *#*#54298#*#*

• HTC - *#*#8255#*#*, *#*#3424#*#*, *#*#4636#*#*

• Sony - *#*#7378423#*#*, *#*#3646633#*#*, *#*#3649547#*#*

• Huawei - *#*#2846579159#*#*, *#*#2846579#*#*, *#*#14789632#*#*

• Philips - *#*#3338613#*#*, *#*#13411#*#*

• Alcatel, Fly, Texet - *#*#3646633#*#*, *#*#54298#*#*

Users of mobile devices often confuse the Android engineering menu with the developer menu, although the vast majority of users know nothing and are not even aware of its existence.

But those who don’t chase new products and don’t buy smartphones/tablets every time they appear new version Android also dream of expanding the capabilities of their device.

To solve the problem, you can go in several ways:

• obtain superuser privileges (root rights);
• install several applications that add new features and provide access to features hidden from the user’s eyes;
• use the developer menu (mainly for comprehensive verification and testing of the device);
• go inside system menu(engineering)

We’ll talk about the purpose and capabilities of the latter, having previously found out how you can get into it on various gadgets, firmware and editions of the mobile OS.

How to log in

The most common calling option on an Android device is to enter a combination "*#*#3646633#*#*".

Attention! There are a couple of nuances here:

• firstly, after entering the combination, you do not need to press the call button; a couple of seconds after entering the last asterisk character, the required interface will appear on the smartphone screen;
• The method is applicable to most, but not all devices and firmware versions, especially to Chinese devices;
• The appearance and functions provided may differ on different devices (number of categories, names, differences in versions, etc.).

On other models you should try entering *#*#4636#*#* or *#15963#* . Combinations for mobile devices The most popular manufacturers are shown in the table below.

If you can't call

It is very rare, but it may be that none of the above combinations resulted in the required window being called. In this case, download the Mobileuncle MTK Tools application (removed from the Play Market).

It works similarly to the methods described above, with the difference that the commands for entering codes are sent to the mobile operating system automatically, determining its version and model of the gadget after calling the “Engineer Mode” command.

Before using the program, it is strongly recommended to create a backup of the firmware; it is not for nothing that it has been removed from the application store - many dozens of users have “killed” the firmware of their devices due to inept and careless handling of the software. In addition to calling options, the program allows you to:

• free up permanent and RAM memory;
• restart recovery;
• manage autostart;
• backup, restore and edit IMEI;
• display detailed information about the smartphone hardware.

To gain access to all the features of Mobileuncle MTK Tools, as well as the capabilities of the options, you should acquire root rights for your mobile device.

Composition of the extended interface

Engineer Mode for the user is presented in the form of a multi-tab window, where each tab contains certain types of functions.

Telephony

The first tab contains functions to perform general settings phone: , network testing and obtaining information about used network technologies, changing GPRS parameters, configuring the camera and a lot of sub-items that are incomprehensible to a beginner.

Connectivity

Responsible for changing parameters and displaying information about ports for communication:

• Bluetooth;
• Wi-Fi module;
• FM receiver if available.

You can request comprehensive information about each module, test its operation, change the configuration and look through the logs.

Hardware Testing

The title of the section indicates that there are tools for working with hardware: testing it, extracting any information about hardware components, changing their operating modes.

On Android it supports more than a dozen audio playback modes for various conditions (games, calls, alarms).

As for the camera, a huge range of parameters is available here, which includes changing preview videos and specifying the default video frame rate and many other items.

To test stability and performance central processor Through it you can run a processor stress test.

Changing its voltage and operating frequency in order to overclock or save the battery should be done with extreme caution and being aware of the possible risks.

The processor has the option of putting it into sleep mode under certain conditions, as well as turning off the display.

Engineer Mode also contains a huge number of items for retrieving information and debugging the operation of the processor, touch display, random access memory, sensors.

There are functions to stop removable flash memory and change the operating mode of the USB port.

Location

For those who like to use GPS capabilities, which sometimes lack its settings, an abundance of items are available in this tab.

Resetting to original settings

It has never happened to anyone that the thirst for experimentation led to small disasters.

If something goes wrong during use, everything can be returned back, especially if a backup copy of the firmware was made.

Even if you haven’t acquired it, you shouldn’t lose heart, we’ll reset the device to factory settings and that’s it.

1. The first and most reliable way– rollback the system state to reserved.
2. Resetting the firmware via recovery (BackUp and Wipe).
3. Download Mobile Uncle, call “Restart in Recovery mode" and click on the item "BackUp"

The engineering menu is truly an indispensable tool for fine tuning smartphone/tablet, which allows you not only to take full control of your gadget, but also, sometimes, to return one of the non-working functions. However, its careless use can lead to problems.

Everyone knows what an advanced user can do with the operating room. Windows system miracles. But not everyone suspects that Android can offer advanced capabilities. An experienced specialist can call up the engineering menu, in which advanced configuration of the device is carried out, as well as testing of certain of its functions. How to enter the engineering menu on Android - read below.

In modern versions operating system there is a fairly complete section “ Settings" With its help you can adjust the most different parameters. But some of them still cannot be deeply customized. Such parameters should be looked for in the engineering menu. For example, specialists from service center can enter the engineering menu in order to adjust the volume of the speaker, headphones and built-in microphone.

In a word, the engineering menu contains system settings, which should not be available to the average user. The Android engineering menu can easily ruin a smartphone if you change its parameters almost at random. With its help, you can often even change the font size, increase the number of icons on the desktop and make other system changes. On some smartphones, the engineering menu changes the strength of signal reception, the type of vibration and other aspects of the device’s operation.

Interestingly, the easiest way to get to the engineering menu is on Android 4.4 and later versions of this OS. The hardest thing to do is get into such a menu on Android 2.2. Most often, early versions of the operating system were not equipped with an engineering menu at all - which is why they were practically impossible to customize. There are problems with this on the newest devices as well.

The fast and easy way

It should be noted that to open the engineering menu you do not need any third party program. You don't even need root access! You just need to dial virtual keyboard a special combination - the so-called engineering menu code. The problem is that many manufacturers use their own code; there is no universal combination. Sometimes the code is different even for different models, released by the same company!

Attention! If you use the engineering menu incorrectly, you risk turning your smartphone into a so-called “brick”. If you don't know what a parameter does, don't change it.

First, you should find the section where you dial a telephone number.

If the engineering menu is not displayed, try pressing the call key after entering the combination.

By the way, owners of devices based on the chipset MediaTek MT6573, MT6577, MT6589 and some others can download the application MTK engineering menu. As you might guess, the utility will allow you to launch the corresponding menu without entering a numeric code.

If you can't enter the menu

It is quite possible that you will try to enter all the above combinations, but will not get into the engineering menu. This happens on Android 6 and some other fairly recent versions of the operating system. Apparently, the engineering menu is locked, or some specific code is required to call it.

In four years, Android has transformed from a small but ambitious project into perhaps the most complex and feature-packed mobile OS of our time. Android supports a huge number of technologies and functions, many of which are hidden from the user or hidden in places you wouldn't even think to look at. This article is a collection of tips and tricks that can be applied to any Android device without the need to root.

01. DISABLE THE AUTOMATIC CREATION OF ICONS ON THE DESKTOP

I think I’m not the only one who is annoyed by the way the market behaves when installing an application. For some reason he thinks that for any more or less software or the next game I definitely need an icon on the desktop, and he successfully creates it. And I have to delete it. And then another one. And so every time.

Fortunately, this behavior is easy to disable - just open Google settings Play (in the left panel) and uncheck the “Add icons” option. There you can also disable the forced password request every 30 minutes when purchasing applications, as well as the hated auto-update of applications.

02. DISABLE GOOGLE SEARCH AND OTHER USELESS SOFTWARE

The standard firmware of Android smartphones includes a huge amount of useless software, ranging from a bunch Google applications(do you know that Google requires manufacturing companies to include almost all the software it develops in the firmware of their devices?) and ending with all sorts of junk from the smartphone manufacturer. All of this (or at least most) can be disabled.

Go to “Settings → Applications → All”, tap on the desired software and click “Disable” (of course, you will be warned how “dangerous” this is). By the way, when you disable Google search, Google Now will disappear, as well as the search bar from the desktop (after a reboot), in its place there will be an empty area.

03. RESET TO SAFE MODE

Few people know, but Android, like many other operating systems, has a so-called Safe mode. This is a mode in which the operating system boots with disabled third party applications. Not very skillfully written malware (one that is not registered in system partition) in this case it falls off, like any software that interferes with the normal operation of the system. Safe mode can be used to bypass screen blockers, applications that cause the smartphone to freeze, or, alternatively, to identify who is actually eating up the battery - the next firmware or software update.

The mode is turned on in a rather simple, but not at all obvious way: by holding down the power button and then holding your finger on the “Turn off power” item. After rebooting, the culprit of the problem can be removed through “Settings → Applications”.

04. GET RID OF INSTRUCTIVE NOTIFICATIONS

“The construction of the castle is finished!” - how did you get these notifications? Everyone who is not too lazy is trying to notify me about all possible and impossible events: “Vasya Dzhubga replied to you on Twitter,” “You have 100,500 new messages,” “You won surgery to enlarge your right leg.” You swipe away one notification, and three new ones appear in its place.

How to get rid of all this slag: hold your finger on the notification for a long time and uncheck the “Stop” button. This is the recipe for KitKat. In Lollipop, everything is a little different, but the essence is the same: hold down, then the i button, in the window that opens, put a checkmark on “Block”. There you can also force the notification to be a priority so that it is always at the very top.

05. DON'T FORGET ABOUT THE SERVICE MENU

Another not at all obvious function is service menu. It can be opened by dialing *#*#4636#*#*. Basically there is various technical information like IMEI numbers, signal strength, current location, or network type. But there is also a very useful function for some situations to force the smartphone to switch to desired type networks (2G, 3G, LTE).

In conditions of poor 3G/LTE signal levels, the device tends to reset to 2G in order to save battery power and ensure subscriber availability. This behavior can be disabled. Open the service menu and in the “Set up preferred network type” item, select WCDMA only or LTE only. In the same way, you can switch your smartphone to 2G - GSM only. It will help if you need to save battery power and the Internet is rarely used. By the way, you can also disable the radio module there altogether (until the next reboot, of course).

In smartphones based on Chinese MTK chips has its own and much more sophisticated service menu. His number is *#*#3646633#*#*. There is various system information and a huge number of tests, among which you can find several useful settings, such as adjusting the volume level during a call or, for example, changing GPS/AGPS settings. The menu itself is terribly illogical and contains so much varied information that I don’t even dare to describe it, but simply send the reader to three letters - XDA.

06. USE A STANDARD BROWSER

I don't know why users don't like the built-in one so much Android browser. In my opinion, he is wonderful. Lightweight, fast, powered by the Chromium engine, can synchronize with a Google account (that is, it immediately includes all bookmarks and passwords from Chrome), but most importantly, it has a very convenient and almost ingenious navigation method. This is the so-called radial menu, which can be activated in the settings (only in Android 4.0–4.4).

07. MANAGE YOUR CONTACTS FROM YOUR COMPUTER

Google has web services not only for remotely installing software, blocking and searching for a smartphone, but also for managing contacts. All people's contacts ever saved and synchronized when connecting a new smartphone can always be found on the page google.com/contacts. They can be viewed, edited, added and deleted. Moreover, oddly enough, it is essentially part of Gmail.

08. MONITOR YOUR PROCESSOR LOAD

Android has a built-in function to show the current CPU load and active this moment processes on top of the screen. In theory, it is intended for application and firmware developers and is hidden from ordinary users, but no one is stopping us from activating it. But first you will have to reach the “For Developers” settings section, which by default does not exist at all.

Go to settings, then “About phone”, find the line “Build number” and tap on it seven times in a row. The message “You have become a developer!” should appear on the screen. This means that the “For Developers” item is now open, and we go to it. We rewind almost to the very bottom of the screen and in the “Monitoring” section we find the “Show CPU load” switch.

Turn it on and see a list in the upper right part of the screen. The first line is the so-called loadavg, which shows the number of processes that had to run or wait their turn to run in the last minute, five and ten minutes. To put it very roughly: if these values, divided by the number of processor cores, are above one, this means 100% processor load in the last minute, five or ten minutes, respectively. Below there is a list the most voracious processes (essentially, an analogue of the top command from Linux).

09. USE ADB TO BACKUP SOFTWARE ON YOUR COMPUTER

We have already written more than once about a wonderful tool called ADB, which can significantly simplify managing a device from a computer for a person who is familiar with the console (here we are mainly talking about Linux, of course). In addition to the ability to install software, transfer files to a smartphone, view logs and other useful things, ADB has recently made it possible to backup all smartphone settings and applications.

To use this functionality, install the universal ADB driver (goo.gl/AzZrjR), then download ADB itself (goo.gl/3P7klM), install the driver, then expand the archive with ADB, connect the smartphone to the computer with a USB cable, launch command line and execute the command

$ adb devices

If no devices are found, it means that ADB debugging mode is disabled on your smartphone. To enable it, go to “Settings → For Developers”, turn on the “USB Debugging” switch. Now we execute the previous command again and agree to the warning that appears on the smartphone screen. Now you can make a backup:

$ adb -apk -shared -f backup.ab

A message will appear on the smartphone screen asking you to specify the encryption password for the backup - you can safely press “Next”. The application backup process will begin, which will affect both the APK packages themselves (the -apk flag in the command) and their settings. All applications from the memory card will also be included in the backup. You can restore a backup using the following command:

$ adb restore backup.ab

10. DISABLE BACKGROUND DATA TRANSFER IN APPLICATIONS

Working in the background, applications can actively use the Internet for a variety of purposes, from updating their content to leaking information about your location. In addition, such activity in any case leads to increased battery consumption.

Android has the ability to selectively restrict applications from transferring data in the background, but it is located in a place where most users would hardly ever look. To prevent any application from using the Internet in the background, you need to go to settings, then “Data transfer”, scroll down the screen to the list of applications actively using the network (for some it will be a surprise that it is there at all) and tap on the desired software. At the bottom there will be an option “Limit background mode" It is worth keeping in mind that the option will disable data transfer only via mobile network, so by Wi-Fi data will continue to flow.

11. USE THE SEARCH BAR

Often, smartphone owners Android based neglected search bar at the top of the main screen. This is really logical, given the ability to search by typing a query into address bar any mobile browser.

Meanwhile, the desktop search bar does much more than just redirect your request to google.com. It allows you to search contacts, applications, calendar events, bookmarks and web browser history automatically. With normal use of a smartphone, it may not be so useful, but when connected external keyboard it is an indispensable tool. Just click and enter the name of the application, contact or anything else, and it immediately appears on the screen.

12. USE SMART LOCK

Smart Lock is one of those features that you don’t think about, but once you try it, you can’t live without it. This is one of the most notable new Android Lollipop products and one of the most useful functions, added to Android recently. The idea of ​​Smart Lock is extremely simple - it disables the PIN code or other lock screen protection if there is a specific Bluetooth device or map location nearby.

By default, Smart Lock is “sort of” disabled. That is, it does not light up anywhere, but after pairing with a new Bluetooth device (of any type), it will definitely offer to add it to its white list. After this you will forget about her again. But only until you enable lock screen protection in the “Security” section of the settings. Now it will work as it should.

Sami Smart settings Lock are in the same section, and, in addition to adding new Bluetooth devices, you can specify “safe places” there, and immediately with a list of options based on Google Now “observations”. By the way, if you disable it, as described in the first tip, then this functionality will also be lost.

13. SAVE ENERGY RIGHT

Another notable innovation from Lollipop is its power saving mode. It migrated to standard Android from the firmware of smartphone manufacturers, who previously sold it independently. Now the function is in pure Android- you use your smartphone to the fullest, and when you reach 15% of the battery charge, the system suggests turning on the power saving mode, which turns off background data transfer, reduces the brightness to a minimum, turns off some sensors and reduces the screen rendering FPS to a couple of tens of frames per second. For clarity, the status bar and on-screen buttons at the bottom of the screen turn red - so you don’t forget.

To save battery life on a smartphone with an AMOLED screen, you can set black wallpapers and use apps with black backgrounds.

The energy saving mode is customizable. Go to “Settings → Battery → menu → Power saving mode.” Here you can specify a condition automatic switching on mode (though the choice is meager: 5%, 15% or never) and, most importantly, turn on the mode right now. Very convenient if you have a long trip ahead without the possibility of recharging.

14. MONITOR TRAFFIC

Most likely, smartphone manufacturers, as usual, will shovel standard interface Android 5.0 and everything will change (hello Samsung - the biggest fan of breaking interfaces), but in the standard Lollipop curtain, or rather, in the “second curtain” with
flasks quick settings There is one highlight. The data transfer button in the center does not switch data transfer at all, but expands into an interface that allows you not only to view the current traffic consumption, but also to disable data transfer using the switch on top.

15. SHARE NOT YOUR PHONE, BUT THE APPLICATION

Especially for those who like to give their phone to other people, Lollipop has a Screen pinning feature that allows you to lock your smartphone on one application without the ability to close it or switch to another. Like many other useful features, it is completely invisible and hidden quite deep in the settings. To activate, go to “Settings → Security”, scroll almost to the very end and turn on the “Block in application” option.

Now if you click the view button running applications(“Browse”), an pushbutton will appear at the bottom of the current application’s thumbnail. Once you tap the icon, the screen will be locked on the selected app and you will need to hold the Back and Overview buttons simultaneously to go back. In this case, you will have to enter a PIN code if it is set for the lock screen.

XX. USE ACITIVITY LAUNCHER

Any graphic Android application includes one or more so-called “activities”. Each of them is an application window (screen), for example main screen or a settings screen, maybe even a file selection window. By default, you can open directly (from the desktop) only those activities that the application developer marks as main; the rest are accessible only through the application itself and only if the developer himself allows this.

However, having at hand the right tool, you can reach any other activity of any application and even create a shortcut for it on the desktop. Activity Launcher does just that. Just install the application, select “All actions” in the menu at the top and find the software you need. All of her activities will appear on the screen, and any of them can be opened with a simple tap or placed on the desktop by holding your finger for a long time.

An example of useful “internal” activities is the Chrome bookmarks window (Chrome →Bookmark), access to the hidden AppOps mechanism in Android< 4.4.2 (Настройки → AppOps), запуск поиска в TuneIn Radio (tunein.ui.activities.TuneInSearchActivity). Очень много активностей имеет в себе ES Проводник, включая редактор, music player, image viewer and much more. Any of them can be launched directly from the desktop. In the same way, you can open any section of the settings and gain access to some OS functions that are difficult to access. This is completely legal functionality and does not require root.

Android has a large set of hotkeys for connected keyboards. You can use Arrow, Tab, and Enter to navigate the desktop and various menus. In addition, the following key combinations are available:

Esc - “Back” button;
Win + Esc - Home button;
Ctrl + Esc - “Menu” button;
Alt + Tab - switch between applications;
Ctrl + Space - switch layout;
Ctrl + P - open settings;
Ctrl + M - control installed applications;
Ctrl + W - change wallpaper;
Win + E - write a letter;
Win + P - music player;
Win + A - calculator;
Win + S - write SMS;
Win + L - calendar;
Win + C - contacts;
Win + B - browser;
Win + M - google maps;
Win + Space - search;

To find out your MAC and IP address, go to “Settings → Wi-Fi → menu → Advanced
new functions.” MAC and IP will be at the very bottom.

Lollipop has a built-in Flappy Bird style game. Go to “Settings → About phone”,
Tap on the “Android Version” item several times, then hold your finger on the “Lollipop” that appears. Let's play.

Google Now supports a large number of Russian-language voice commands. All of them can be divided into two groups: voice search and the voice commands themselves. Voice search allows you to perform an intelligent search on Google, when the system displays a specific answer on the screen instead of a list of links, and voice commands allow you to perform certain actions, for example, send an SMS or set an alarm. The list of commands is shown in the image " Voice commands Google Now." Voice search includes more than a dozen various types questions:
Weather. What will the weather be like tomorrow morning?
Addresses. Where is the nearest pharmacy?
Flight information. When does Aeroflot flight number 2336 depart?
Time. What time is it in London?
Events. When is sunset today?
Computing. What is the square root of 2209?
Translation. How do you say "cucumber" in Spanish?
Sport. When does Spartak play?
Finance. What is the S&P 500 index today?
Data. What is the height of the tallest building in the world?
Exchange Rates. Convert 2600 rupees to US dollars.
Images. Show photos of the Golden Gate Bridge.
Interestingly, Google Now understands a large number of much less obvious questions in English. As an example we can give:
Should I wear a jacket today?
How much tip for 420 rubles?
Where is my parcel?

This, of course, is not all that could be talked about, but it will not be possible to lengthen the article, and many of the other possibilities are already known. Don't forget about these tricks, and your smartphone will become
a little more convenient.

A beginner who has bought a smartphone or tablet based on the Android operating system, after a while, feels the need to reconfigure something in it or adjust it more precisely. Entering the Android engineering menu is simple: you just need to know the special commands.

The hidden engineering menu in Android devices allows you to manage system settings of your smartphone or tablet that are not available in the standard menu. For example, they allow you to increase the speaker volume during calls, forcefully select the frequency range of the network being used, enable a photo or video format that is not in the main camera settings, etc.

Parameters configured in the engineering menu

Using the engineering menu you can access functions such as:

• speaker or headphone volume;
• improved speech recognition;
• microphone sensitivity;
• voice quality when making calls;
• forced cellular network selection mode: “GSM only”, “WCDMA only”, “LTE only” (some network modes may not be available in the standard settings);
• binding to one base station, frequency or channel number;
• choice of technology and cellular data speed;
• testing and overclocking the processor;
• enable/disable sleep mode;
• testing Wi-Fi and Bluetooth radio modules;
• auto-switching 2G/3G/4G in sleep mode;
• camera test drive;
• changing the photo format (default is JPEG or PNG);
• fine-tuning the display brightness and its response to lighting;
• locking/unlocking auto answer settings for incoming calls;
• improved GPS performance;
• full reset, including factory formatting of the smartphone;
• testing and setting motion sensors;
• testing color rendering on the display;
• testing and setting up vibration alerts;
• backup of multimedia files;
• level determination harmful radiation(SAR) on a single device;
• FM radio settings and behavior.

Video: smartphone customization options through the engineering menu

Commands for accessing menus

Commands for accessing the engineering menu vary depending on the manufacturer. There are also common commands for all versions of Android that allow you to configure individual device functions.

Main codes for entering the engineering menu

The commands you enter vary for different brands of devices - select the ones that suit you. It is not forbidden to check everything - commands that do not correspond to a specific manufacturer simply will not work.

Table: commands for accessing the engineering menu of various manufacturers

Google Commands for Android OS

Android Factory Service Codes Showing technical information information about the device are often not linked to the manufacturer. Basically, they are all built into Android by default. Command “numbering” range agreed upon by Google- as the creator of the Android operating system - with manufacturers of tablets and smartphones.

Table: Android factory service codes

The most popular service codes of the engineering menu

The most popular codes that allow you to change smartphone settings through the engineering menu do not depend on the phone brand or Android version.

Table: service codes for changing phone settings

When using commands, keep the following in mind:

• By updating the camera firmware through the engineering menu, you can find out about the version of this firmware and the number of its updates - and also save this update to an image in the internal memory and on the SD card. It is not recommended to reflash the camera again - if it fails, you will simply ruin it;
• when resetting the Android system, deleting all user Google data A message will appear on the screen asking you to confirm the reset.

How to enter the engineering menu

To get to the engineering menu, follow these steps.

Video: how to open the engineering menu on Android

What to do if you can’t enter the menu

It happens that none of the commands intended for a particular brand of device are suitable - this is how the manufacturer protects inexperienced users from not fully thought-out actions. Some manufacturers, after software debugging of a smartphone, completely remove the engineering menu, and all of the above commands simply do not work. For example, it does this Samsung company . Some of the commands entered can cause harm, such as software

Often, instead of general service commands, more specific ones are triggered. If, despite all your attempts to “reach out” to the engineering menu, none of the service codes work, you need special applications.

Install free application Mobileuncle Tools - it will differentiate between hardware and system settings. You may need to obtain Root access on Android. There are other applications: EngModeMtkShortcut, BetterCut, etc.

How to save settings

To ensure that settings made using engineering Android menu, have been preserved, you need to get out of it correctly. While in any section of the engineering menu, use the on-screen “Back” key either in the menu itself, or press the cancel call button or the “Back” key under the display - it is indicated as a reversal arrow - to go to a higher level of the engineering menu.

It is not recommended, after setting the value of any setting and confirming it with the Set key, turning off or rebooting the smartphone by pressing the power button, removing the battery from the device, etc. Exiting the engineering menu can involve pressing - sometimes holding for a few seconds - the same “Back” key below the display. When you exit the engineering menu, a message will appear on the smartphone screen asking you to save the settings you have made - confirm it. There are tips on some of the sections of the engineering menu:

The reason why the engineering menu still does not save the settings may be “raw” firmware. Find out which Android versions and builds are right for your device. If you have a branded smartphone with a version of Android that has preinstalled programs and components from Beeline, MTS, MegaFon or Tele2 - feel free to install a “custom” version, for example, the well-known CyanogenMod assembly. Any earlier - or, conversely, the most “fresh” - one may be suitable. Android version.

In some cases, it is impossible to enter the engineering menu without obtaining Root rights. The task is to make an Android smartphone “rooted”. In other words, get “superuser” capabilities on your smartphone, allowing you to take the smartphone under the clearest and most complete control. This is achieved in the following ways, use any of them.

1. Install a custom (modified) version of Android on your smartphone. It already includes the Superuser software component, which provides access not only to the engineering menu, but also to system folder system.
2. Download from the Android Market any of the applications that perform hacking android without the help of a computer. Suitable here different programs: Universal AndRoot, Unlock Root, z4root, Revolutionary, etc. Not all of them can help - you will have to test everything until it works.
3. You can also try applications for Windows that perform all manipulations with Root access on a smartphone directly from the PC - for example, the VRoot program. You also need a USB-microUSB cable - it is impossible to hack Android on a smartphone via Wi-Fi.

After receiving Root privileges, the smartphone is ready to activate the engineering menu using third-party Android applications.

The more recent the version, the more more settings the engineering menu will be in Russian. In the most earlier versions Android (1.x, 2.x) all service settings were on English language. Having learned a little technical English, you can easily remember the purpose of each of the settings and, if necessary, you can change them all in a few minutes.

The availability of the engineering menu - in whole or in part - is decided not by the Android version, but by the make and model of the smartphone. Try different combinations and programs, but don't get too carried away.

If you perform inept actions or forget the entered codes, there is a risk of turning your smartphone into a lifeless device, and only a service center will be able to restore it to you.

And since if you “root” the device, you automatically lose the warranty. The Android engineering menu is one of the most useful tools for an “advanced” user, preventing him from wasting the hardware resource of his device and the resource of cellular and wireless networks wasted. And it doesn’t matter what version of Android you have - 2.2, 4.2.2, 4.4.2 KitKat, 5.1, 6.0 or another - the engineering menu codes are determined only by the manufacturer. By completely subjugating your smartphone or tablet, you will deprive it of the opportunity to “live its own life” not according to your schedule, but according to the script of the manufacturer itself, mobile operators and other intermediary companies, one way or another involved in the work mobile technology V cellular networks