How to enter the engineering menu on android. How to enter the engineering menu on Android correctly: step by step instructions

The android operating system has always been famous for its flexibility and abundance of settings. For many, this is a definite plus. You can adapt the device for yourself. If the user first encountered this system, he may have a number of questions. To prevent this from happening, consider what the android configuration includes.

When you turn it on for the first time, the device will ask you to make the minimum settings. You cannot refuse this. First, you need to select the interface language. The main thing in this matter is not to rush. If you accidentally choose, for example, Chinese, then it will be difficult to find the corresponding menu item and return to Russian.

Next, the device will prompt you to enter data google account... The procedure can be skipped, but it is not advisable to do so. Without an account, you will not be able to download games, use mail, maps and other applications from the Play Store. If you don't have an account, you can quickly register it (you can read about it in our separate page). The process is quite simple and takes no more than five minutes.

After authorization, the device will ask a few more questions that need to be answered positively. Particularly important is the point regarding data backup. Be sure to check the box. Different situations happen in life. The phone can be stolen, drowned, broken, or simply accidentally erased information. Backing up will protect yourself from the loss of important data. It will be enough to log in from any other device or computer and restore all the necessary data.
This completes the initial setup of the android. A welcome message is displayed on the display, after which you can start using the gadget. On different versions operating system the process may be slightly different. Despite this, the main stages remain unchanged.
Above we have discussed only the basic settings that are required to enable the gadget. This stage can only be considered the beginning. There are still many parameters ahead that can be changed depending on personal preference.

Top curtain on the screen

This is a very handy and useful tool that you can open with a swipe. Just swipe down from the top of the screen. The curtain includes a menu with the most requested settings. Depending on the company, device model and firmware version, the set of tools may differ. In most cases, the curtain contains the following buttons:

1. Silent mode. A very convenient button that allows you to turn off all sounds of the device at once. This feature can be useful during meetings and other situations where complete silence is required.
2. Flight mode. By activating this key, the phone completely loses mobile network... No one will be able to call the user and send an SMS message. In this case, the phone remains switched on and can be used as a multimedia device.
3. Bluetooth. Allows you to quickly start data transfer without going into the basic settings.
4. Adjust the brightness using the slider. This parameter can be adjusted several times a day. This is due to the amount of light in the room and the battery level.
5. Enabling and disabling the Internet. Also a handy feature that saves traffic mobile internet and battery charge.

Android home screen

The home screen consists of one or more desktops. They are required to accommodate the most requested icons. Adding and removing desktops is done differently depending on the launcher. On certain models, the menu is called up by pinching the screen. After that, all desktops appear on the screen and it is possible to add new ones. On other gadgets, you need to move the application icon to the area where the desktop is missing.

All androids have the ability to add widgets. This allows you to read important information directly from your desktop. There are a lot of widgets. Among them, you can find clocks, weather display, recent messages, system parameters, music player and much more.

Main menu of device settings

To make a finer adjustment of your device, you need to go to the "Settings" item. This is a kind of gadget control center. All available functions are concentrated there. Below we will consider them in more detail.

Wifi

To connect to a wireless network, you need to click on this icon. Next, move the slider to the active position. The system automatically starts scanning for available networks. The display will show a list of found networks. There are unsecured connections. In most cases, they are located in public places (cafes, restaurants, hotels). To connect to them, just one click. The situation changes if a lock-shaped icon is displayed next to the connection. It means that this network password protected. After entering the password, you can freely use the Internet.

In the Wi-fi settings there is a very useful item - "On in sleep mode". By activating this function, Wi-fi will be turned off when the phone is at rest. This saves battery power.

Screen

Special attention should be paid to setting up the screen. Firstly, this is a key part of the android, and secondly, it is the main consumer of energy.

It is possible to change the following parameters:

• Wallpaper. The user has the right to install any image on the desktop of the device. Factory screensavers are not original, so they quickly get bored. With this feature, you can install on main screen any photo or positive picture. In addition, there are live wallpapers that are made in the form of animation.
• Sleep mode. This function allows you to set the period of time after which the phone will go into sleep mode. If you do not touch the phone for a specified time, it will turn off the backlight itself and lock the screen.
• Brightness. The brightness of the screen affects your vision and the duration of work on a single battery charge. Setting is done by moving the slider. There is also an item "Auto-tuning". If activated, the display will change its brightness depending on the lighting level in the room.
• Auto-rotate the screen. A very handy feature. The screen is automatically reoriented depending on the position of the smartphone in space. If necessary, this function can be disabled.

Sound

Android capabilities allow you to set any melody for incoming calls, messages, alarms, etc. In addition, the volume level can be set for each category of sounds.
All smartphones have the ability to enable and disable vibration when calling. The Silent Mode switch mutes all sounds in the device.

Special abilities

This menu may differ depending on the functionality of a particular gadget. On top models, you can activate call acceptance by shaking the phone and much more. These functions are optional and rarely used in practice.

Safety

If your smartphone stores important information, you need to take care of security. The android system offers a number of solutions for this:

• graphic key;
• digital password;
• alphanumeric password;
• fingerprint scanner (if this function is available in the device).

This is quite enough to protect the gadget from unauthorized access. In addition, the device tries to protect itself from all kinds of viruses. Therefore, the "Unknown sources" key is provided. By default, android does not allow installing applications from third-party sites and other sources. To install a third-party program, you need to activate this function.

date and time

There are a number of cases when the date and time on the device is lost. You can customize them in the main menu. To do this, just click on the appropriate tab and indicate the current digital values. You can go an easier way. By activating the function "Date and time of the network", the device will synchronize the time from the Internet.

Battery

Here you can not only see the state of the battery, but also reduce its consumption. For this, a special tab "Energy saving" is provided. Following it, we will see several ways to optimize consumption:

• limitation of the processor;
• decrease brightness, turn off screen rotation and decrease backlight time;
• disconnection of the Internet, Bluetooth and navigation;
• turn off vibration alerts and vibration in applications.

You can activate all categories at the same time or select one. Unfortunately, the battery saver feature is only present on newer versions of android.

Applications

This is one of the main menu items. From here, all applications of the device are managed, as well as deleted. If the device is not equipped with sufficient volume random access memory, you need to look at the "Working" tab. It will list the currently active applications. They can consume a lot of resources and cause the device to slow down. To fix this, the user needs to stop running unnecessary applications. Often times you can see unused and useless programs there.

Each manufacturer produces gadgets with a specific set of built-in applications. In most cases, they turn out to be of little use and take up extra space. Some of them can be removed. To do this, find the application and click on it. Next, a window will open in which you need to click the delete button and confirm your actions. Thus, one can release internal memory and clean the phone from "rubbish".

Developer settings

For advanced users, there is a separate menu item. It is not initially displayed on the system. To use it, you need to find the "About phone" tab and then "Build number". After that, click on it about ten times. The screen should display the message "You have become a developer." After that, the hidden settings will become available.
Many functions can be activated here. For example, change the speed of graphic effects, set a limit background processes and much more. The main thing is not to press everything. This may affect the performance of the device.

Installing the launcher

Android device manufacturers are trying to stand out and create an individual graphical shell. In this regard, the menu, icons, buttons and other elements look different on all devices. In some cases, the factory shell can be boring and ineffective. You shouldn't be upset in this case, since this operating system allows you to install any design. It is enough to go to the application store and download the launcher you like. This is not just a design theme, but a radically new system shell. As a result, the user can set the design to his liking.

Settings with Root rights

By setting this type of rights, the user gets unlimited access to system files. As a result, you can delete system files, adjust the processor frequency, change the built-in system sounds, and much more.
It is necessary to use root rights very carefully. Careless actions can cause the device to malfunction. It is also worth remembering that the installation of root rights entails the loss of the manufacturer's warranty. You can read more about root rights on our website in the corresponding article.

Reset

If the android settings are not correct and there is no desire to correct your mistakes, you can do a reset. This will lead to the fact that all previously made changes will be reverted to the factory settings. But it is worth remembering that this erases some of the data that is stored in the gadget's memory. Therefore, before resetting, you must do backup all important information. It often helps in troubleshooting problems related to incorrect device operation. How to do it correctly - read in our

Conclusion

Devices running on the android operating system have an unlimited number of settings. It is not at all necessary to use them all. This abundance is not created to complicate the life of the buyer, but to provide him with ample opportunities to personalize the device. For normal use, it is enough to set the date, time and create an account from Google. And then, at any time, if you want to use the full potential of the system, make the finest setting of the device.

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Android gadgets are becoming more and more popular among users due to their ease of use and high functionality. But at the same time, not everyone knows about the possibility of more personalized and flexible customization of their phone. For these purposes, the engineering menu is usually used, which includes a number of a wide variety of settings - a program for automatic recording of conversations, an increase in the volume of the device, a huge number of various add-ons for the radio.

Unfortunately, this menu is not available to everyone. Some manufacturers simply remove the program to enter it at the last stage of the pre-sale Android setup. Also, the engineering menu is available for owners of devices on Android with a processor only from the MTK manufacturer; trying to run it with a processor from other manufacturers is useless.

Special commands and applications

To enter the engineering menu, you must enter the "secret code". For different manufacturers, the "activation code" may be different, but there is one universal one that is suitable for almost all ANDROIDs - * # * # 3646633 # * # *.
You need to enter it in the dialing and call window. Most often, immediately after entering the code, you immediately enter, but on some devices, in order to enter it, you may also need to press the call key. If the program does not start, in order to enter, you can try to enter other launch combinations corresponding to your phone model.

1. Samsung - * # * # 4636 # * # * or * # * # 8255 # * # *
2. HTC - * # * # 3424 # * # * or * # * # 4636 # * # * or * # * # 8255 # * # *
3. Sony - * # * # 7378423 # * # *
4. Huawei - * # * # 2846579 # * # * or * # * # 2846579159 # * # *
5. MTK - * # * # 54298 # * # * or * # * # 3646633 # * # *
6. Fly, Philips, Alcatel - * # * # 3646633 # * # *

If all of the above steps were unsuccessful, you can try downloading at Google play special application to launch the engineering menu. If, even after installing a special program (most often "Mobile Uncle"), it was not possible to enter the service menu, it means that the launcher on your phone engineering settings has been removed, you can install it again.

Probably many smartphone owners have faced the problem of volume. For example, I was not happy with two things. The first is a quiet loudspeaker sound during an incoming call, and the second is a very loud sound in the headphones during an incoming call.

A little about how Android volume controls

If no headset is connected to your gadget (headphones, hands-free, etc.), then the volume settings will be the same, and as soon as you connect the headset, the settings will be different. For a general understanding, I will tell you a few examples.

Example 1. You listen to music on the phone, turn on the loud speaker at full power, and when you connect the headset to it and turn on the loud speaker again, the volume may differ (it may be louder or lower, depending on which phone model or firmware version).

Example 2. You are watching a movie in headphones, the volume (meaning the volume of the multimedia) is set to 40% and then after a while you have an incoming call, then the volume in the headphones will change to the general volume, in which case you can get a powerful sound blow to your ears. Believe me, I was blown off the couch more than once in such cases, the fact is that the programmers have poorly adjusted the volume modes.

Example 3. You are talking on the phone and you need to switch to hands-free mode, and you notice that the speaker is not as loud (or vice versa) as when listening to music; or your partner began to hear you poorly, this is because the microphone may have different sensitivity in different modes. Also, when you connect a headset in the same situation and turn on the speakerphone mode - again, different settings. This is how Android controls volume.

We learn the theory of the engineering menu

So let's look at what and how you can do if you tinker a little over the "Engineering menu".

Before making any changes, we recommend that you read the entire article, and comprehend, and then experiment. Also take a piece of paper and write down all the defaults in case something goes wrong. You can start the engineering menu by using telephone dialing: we write the following combinations on it (Fig. 1):

picture 1

* # * # 54298 # * # * or * # * # 3646633 # * # * or * # * # 83781 # * # * - smartphones based on MTK processor

* # * # 8255 # * # * or * # * # 4636 # * # * - Samsung smartphones

* # * # 3424 # * # * or * # * # 4636 # * # * or * # * # 8255 # * # * - HTC smartphones

* # * # 7378423 # * # * - Sony smartphones

* # * # 3646633 # * # * - Fly, Alcatel, Philips smartphones

* # * # 2846579 # * # * - Huawei smartphones

Congratulations, you have entered the engineering menu (Fig. 2). Please note that the menu on different phones may differ slightly in structure. Find the "Audio" section and go into it. After entering, we see a bunch of unknown lines (modes) (Fig. 3). Here's what these modes mean in Android:

figure 2 figure 3

— Normal Mode (settings section in normal or normal mode) - this mode is active when nothing is connected to the smartphone;

— Headset Mode (headset mode) - this mode is activated after connecting headphones or external speakers;

— LoudSpeaker Mode (loudspeaker mode) - it is activated when nothing is connected to the smart, and you turn on the loudspeaker while talking on the phone;

— Headset_LoudSpeaker Mode (loudspeaker mode with a headset connected) - this mode is activated when headphones or external speakers are connected to the smart, and you turn on the loudspeaker while talking on the phone;

— Speech Enhancement (phone call mode) - this mode is activated in the normal phone call mode, and nothing is connected to it (headset, external speakers) and speakerphone is not turned on.

It is better not to poke your nose into the last three sections:

— Debug Info - it is not clear for what - infa on the backup of information or its debugging;

— Speech Logger - I have not fully figured out, most likely, keeping a Log during negotiations or recording chatter. If you check the box next to "Enable speech log", then after the end of the phone call, the corresponding files are created in the root directory of the memory card. Their name and structure is as follows: Wed_Jun_2014__07_02_23.vm (Wednesday_July_2014__time07_02_23.vm).

What these files are for and how they can be useful to us is not clear. The / sdcard / VOIP_DebugInfo directory (which is the storage location for files with backup information) is not automatically created, if you create it manually, it will remain empty after the conversation.

— Audio logger - good software for sound recording, which supports fast search, playback and saving.

If you approach these modes wisely, then you can adjust the volume of Android smartphones or tablets as you like. When entering any of the modes, different volume settings (Type) will become available to your eyes. Here is a list of the basic settings you need to know (Figure 4):

picture 4

— Sip- settings for internet calls;

— Mic- microphone sensitivity settings;

— Sph - settings for the spoken dynamics (the one that we apply to the ears);

— Sph2 - settings for the second spoken speaker (I don't have one);

— Sid - we skip, when you change these parameters during negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;

— Media- setting the volume level of multimedia;

— Ring - volume level adjustment incoming call;

— FMR - FM radio volume settings.

Further, under the item for selecting settings, we have a list of volume levels (Level) (Fig. 5). For a better understanding - there are 7 such levels, from level 0 to level 6. Each level corresponds to one "click" on the volume rocker of a smartphone or tablet. Accordingly, level 0 is the quietest level, and level 6 is the loudest signal level. Each level can be assigned its own values, which are in the Value is 0 ~ 255 cell, and should not go beyond the range from 0 to 255 (the lower the value, the lower the sound). To do this, erase the old value in the cell, then enter the new (desired) value and press the "Set" button (the one next to the cell) for assignment (Fig. 6). Be careful when using maximum values, as the speakers can produce unusual unpleasant sounds such as rattles and other unpleasant effects.

figure 5 figure 6

Warning! Rewrite all factory defaults before making any changes (in case something goes wrong).

You should know this!

Editing modes in the engineering menu

Example 1. How do I increase the volume of an incoming call?

To do this, you need to go to the engineering menu, print the "Audio" section, enter the "LoudSpeaker Mode" and select "Ring" in the volume settings - the volume settings for the incoming call. Then sequentially change (increase) the values \u200b\u200bof all signal levels (level 0 - level 6). You can also increase the value of the Max Vol section for more effect. 0 ~ 160, if it is not maximum (I set it to 155 for myself, with a higher value the speaker starts to "wheeze").

Example 2. How do I increase the volume while talking on the phone? (Increase the volume of the small speaker that we put to the ear).

Again we go into the engineering menu already known to us, print out the "Audio" section, go to the special "Normal Mode" mode, select Sph in it - this parameter is responsible for changing the value of all signal levels in the range from level 0 to level 6. Set the desired us level. In the Max Vol. 0 ~ 160, can also be changed to a higher volume power value.

Example 3. Increase the volume and sensitivity of the smartphone's spoken microphone

To adjust and set the required volume level as well as the sensitivity of the spoken microphone, you need to go to the "Engineering menu"\u003e "Audio"\u003e "Normal Mode"\u003e select Mic– microphone sensitivity settings, and for all levels (level 0 - level 6) we assign one and the same value, for example 240. Now the interlocutor should hear you better.

Example 4. How do I increase the volume of audio recording while filming?

Let's say that there is a need to increase the volume of sound recording when filming, then in the engineering menu for our loudspeaker (LoudSpeaker Mode) change the microphone sensitivity settings (mic), increase all values \u200b\u200bat all levels (level 0 - level 6), for example, set it to 240 at every level. I remind you about pressing the (set) button - reload your favorite gadget and rejoice.

By the way, do not forget to press the “Set” button after each editing of a certain parameter. This action should fix and accept your command for execution. Otherwise, the user-set parameters are not activated. In addition, a certain number of mobile devices require a reboot for the changes to take effect (turn off and turn on the device).

Good luck with your experiments, if something is not clear - write in the comments. We look forward to hearing from you.

Code table for entering the engineering menu

Note:the table is constantly updated

Everyone knows that an advanced user can do wonders with the Windows operating system. But not everyone suspects that Android has advanced features. 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 of the operating system, there is a fairly complete section " Settings". It can be used to adjust a variety of parameters. But some of them still do not lend themselves to deep tuning. 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 settingsthat shouldn't be available to the average user. The Android engineering menu can easily ruin a smartphone if you change its parameters almost at random. With it, 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 signal reception strength, the type of vibration and other aspects of the device's operation.

Interestingly, it is easiest to get into the engineering menu on Android 4.4 and later versions of this OS. The hardest thing to get into this menu is on Android 2.2. Most often, early versions of the operating system were not equipped with an engineering menu at all - that is why they practically did not lend themselves to customization. There are problems with this on the newest devices.

The fast and easy way

It should be noted that you do not need any third-party program to open the engineering menu. You don't even need root access! You just need to type a special combination on the virtual keyboard - 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 modelsissued by one company!

Attention! If you use the engineering menu incorrectly, you risk turning your smartphone into a so-called “brick”. If you do not know what this or that parameter does, then do not change it.

First, you should find in the section where the set phone number.

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

By the way, the owners of devices based on the chipset MediaTek MT6573, MT6577, MT6589 and some others can download the application Engineering menu MTK ... 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 you will not get into the engineering menu. This happens on Android 6 and some other fairly fresh versions of the operating system. Apparently, the engineering menu is locked, or some specific code is required to call it.

Not many people know about the existence of the engineering settings menu in Android devices. They can significantly expand the functionality and change many parameters, such as sound volume, camera settings, etc. To enter the Android engineering menu, you need to enter a special combination of characters in the line for dialing a phone number. Moreover, each manufacturer has its own service code, consisting of numbers and symbols "*" and "#". Let's consider the main issues related to the hidden engineering menu of the phone settings: how to enter, how control is carried out and capabilities.

The developers carefully check and calibrate each of their devices, so in most cases the user does not have to change any settings himself. However, in some situations it may be necessary to make small adjustments to certain parameters, such as the sensitivity of the built-in microphone or increasing the volume of the polyphonic speaker. Especially for such cases, the Android engineering menu is intended, access to which can be obtained only by entering a certain combination of characters. Note that it is recommended to change these parameters only in special cases, as it can be dangerous for your phone. Therefore, entering the engineering menu on Android is recommended only for experienced users.

How to enter the menu?

In most cases, a special combination of numbers and symbols is used to enter the engineering menu.... They must be entered in the line to dial the telephone number. If your phone's processor is not MTK, then, depending on the manufacturer's brand, the following engineering menu codes in Android are possible:

• Samsung. For phones of this brand, two options are possible: * # * # 8255 # * # * or * # * # 4636 # * # *.
• NTS. Depending on the OS version and model, combinations can be used: * # * # 3424 # * # *, * # * # 4636 # * # * and * # * # 8255 # * # *.
• Sony. Dial: * # * # 7378423 # * # *.
• Huawei. Depending on the model, the following combinations are used: * # * # 2846579 # * # * or * # * # 2846579159 # * # *.
• Lg. By typing the combination 2945 # * # on most smartphones of this brand, you will be taken to the 1st engineering menu and you can read the instructions for use.

For most Chinese smartphones like Lenovo, Acer, Prestigio, etc. you can open the engineering menu using the code * # * # 3646633 # * # *. Immediately after entering the desired combination in the line for the phone number, it will disappear and the service mode of settings will open. If this does not happen, then you need to start it by clicking on the call button. It is recommended to remember or write down the value of the initial parameters that will be adjusted. Also, before getting into the engineering menu, remove all running applications and active processes from the task manager.

An alternative way to enter the engineering menu

Some phones and tablets have a separate program for this, which you need to download from the Google store - the playmarket. After launching it, the user enters the service settings section of his device, as well as when dialing the code. For example, you can download the launch of the engineering menu mtk, the Mobileuncle MTK Tools application, which is designed specifically for devices with appropriate processors. Another way to enter the developer menu for owners of such smartphones is to enter the code * # * # 3646633 # * # *. We recommend watching a video tutorial on how to open the service settings mode on various brands android smartphones 5 and below.

Engineering menu features

The user who has access to the service settings mode in Android has extensive opportunities to expand the functionality of his device. Through the engineering menu, the following become available:

1. Determination of the level of harmful radiation.
2. Testing available wireless connection types such as Bluetooth, Wi-Fi, etc.
3. Check the GPS signal strength on Android and determine the exact location.
4. Audio setting. Sets the sound level for speakers, headphones and microphones.
5. Camera parameters.
6. Testing the central processor, video accelerator, flash and RAM.
7. Detailed description of the battery.
8. Mirco SD card testing.
9. Checking the micro USB port.
10. Temperature sensor. Shows battery and CPU heating.

Depending on the device used, the above list of possibilities when entering the engineering menu may differ. Accordingly, the more sensors and modules a smartphone has, the more settings it has.

Let's look at how to change the volume parameters using the example of a smartphone with an MTK processor. Before opening the desired service, you must enter a combination of characters to enter the engineering mode. A long list of settings will open, among which you need to find the "Audio" item and click on it. After that, a menu with several modes will appear: when nothing is connected to the phone, a headset is connected, the loudspeaker is on, etc. For each of these modes, more than 5 items are available for adjustment.

To change the parameters, you need to erase the old value in the desired cell and write a new one, and then press the "set" button. The assigned value must not exceed the range specified in parentheses. It is also not recommended to use the maximum available value as this will distort the sound.

Android Service Codes

In order to quickly test your device for the operability of the main functions and sensors, special android codes... You need to enter them, as well as to enter the engineering mode, in the line for dialing the phone number. Since most of the combinations are the same for all models and brands of smartphones, we will give the general and most important in the following list:

• * # * # 4636 # * # * - general information about the phone, battery status and usage statistics.
• *2767*3855# — full reset settings, hard reset.
• * # * # 34971539 # * # * - detailed camera specifications.
• * # * # 2664 # * # * - Calibrate the Android touchscreen.
• * # * # 232331 # * # * - bluetooth test.
• * # * # 8351 # * # * - enable voice dialing registration mode.
• * # * # 1111 # * # *, * # * # 2222 # * # * - view versions of FTA software and hardware.
• * # * # 0 * # * # * - display test.
• * # * # 0673 # * # * - audio test.

It is also worth noting that for some brands there are additional combinations, for example, for displaying EPST menus and testing functionality. In modern models samsung phones, such as Galaxy s6, the diagnostic menu can be opened by dialing the combination * # 0 * #. And devices motorola have a built-in secret menu. Before you enable it, you need to enter the combination * # * # 4636 # * # *.