Call the engineering menu. Android engineering menu: description, settings

Almost all smartphones from Meizu are powered by processors from MediaTek, which means that gadgets with such a chipset always have the Meizu engineering menu. Today we will tell you how to get there, what it is needed for and how any owner of a Meizu gadget can use it to their advantage.

You probably already understood from the name that this menu was created in order to configure, test and debug various phone modules. Since it is mainly used for the latter purpose, the average user will not be interested in digging into at least half of these functions. In addition, we urge you to be careful: if you do not know what exactly you are doing, then it is better not to mess with this setting, as there is a risk of disabling important parameters of the device or even turning it into a “brick”.

To enter you need to open the Meizu menu dial the number and dial the special code: *#*#3646633#*#*. True, it doesn't always work. If nothing happens, try entering *#*#4636#*#* or *#15963#*. If everything is done correctly, you will see the Engeneer Mode program with a slightly strange design - this is the same engineering menu.

If for some reason not a single code worked, then to enter the section we need, use the specialized program “MTK Engineering Mode” or another similar one. To do this, you will need to go to the Play Market or App Store and download it. Once it is installed, launch the application and complete all the necessary steps. As a result, you will be able to configure the phone through the engineering menu by going to certain sections of it.

Engineering menu functionality

There are several hundred different settings hidden here, which are divided into six large tabs:

• Telephony – viewing and checking parameters mobile network telephone, installation of auto reception incoming call, checking the compatibility of a smartphone with a specific operator mobile communications, disabling range support, and it is also possible to reset all settings to factory settings;
• Connectivity – checking Wi-Fi and Bluetooth module, function to turn off the display while using Wi-Fi Display and much more;
• Module testing (Hardware Testing) – test the sound volume through the headset, increase it, check the screen and other important sensors and modules of the Meizu gadget;

• Location – all the same actions, but related to location verification: disabling A-GPS detection and others;
• Debugging (Log & Debugging) – here, for the most part, various links to utilities and tests from MediaTek and those companies that supply other components to the smartphone are stored;
• Others – other settings and tests, for example, setting font sizes on the phone.

It would also be useful to clarify that setting up the phone through the engineering menu on new Meizu models will be done a little differently due to the different structure of the menu items, however general meaning remains the same, and therefore it will not be difficult for a knowledgeable person to configure it. Meizu service codes for entering the menu may differ slightly from what was indicated in the previous paragraph, but usually it is the same.

How to increase the sound in headphones to full volume?

A short instruction on how to increase the music volume to maximum:

1. In the Hardware Testing section, select Audio -> Headset Mode.
2. Value Max Speaker Vol. set to 160 (maximum volume) and press Set.
3. Audio -> Headset_LoudSpeaker Mode in the Max Headset field, enter the value 160, apply by clicking Set.

Conclusion

As you can see, the Meizu engineering menu contains many options for fine-tuning your smartphone to suit your personal needs, from sound testing to controlling the radio module and GPS. In any case, an experienced user will be able to find something interesting for themselves, but an inexperienced user better be more careful with these settings - you can make a mess.

Probably many smartphone owners have encountered volume problems. For example, I was not happy with two things. The first is the quiet sound of the speaker when there is an incoming call, and the second is the very loud sound in the headphones when there is an incoming call.

A little about how Android controls volume

If no headset is connected to your gadget (headphones, hands-free, etc.), then the volume settings will be the same, but 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 are listening to music on your phone, you have turned on the loud speaker full power, and when you connect a headset to it and turn on the loud speaker again, the volume may differ (it can be louder or lower, depending on what model of phone or firmware version).

Example 2. You are watching a movie with headphones, the volume (meaning the multimedia volume) 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 shock to your ears. Believe me, I jumped off the couch more than once in such cases, the fact is that the programmers did not set up the volume modes well.

Example 3. You're on a call and need to switch to speakerphone mode, and you notice that the speaker isn't as loud (or vice versa) as when listening to music; or your partner has begun to hear you poorly, this is because different modes The microphone may have different sensitivity. Also, when you connect a headset in the same situation and turn on the speakerphone mode, the settings are different again. This is how Android controls volume.

Let's learn the theory of the engineering menu

So let's look at what and how you can do if you tinker a little with the “Engineering Menu”.

Before making any changes, we recommend that you read the entire article, understand it, and then experiment. Also, take a piece of paper and write down all the default values ​​in case something goes wrong. You can launch the engineering menu using a telephone dialer: enter the following combinations on it (Fig. 1):

figure 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 smartphones, Alcatel, Philips

*#*#2846579#*#* – Huawei smartphones

Congratulations, you have entered the engineering menu (Fig. 2). Keep in mind that the menu structure on different phones may differ slightly in structure. Find the “Audio” section and go into it. After logging in, 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;

— Loud Speaker Mode(speaker mode) – it is activated when nothing is connected to the smart phone, and you turn on the speakerphone while talking on the phone;

— Headset_LoudSpeaker Mode(speaker mode with a headset connected) – this mode is activated when you connect headphones or external speakers, and you turn on the speakerphone while talking on the phone;

— Speech Enhancement(phone conversation mode) – this mode is activated in the normal mode of telephone conversations, and nothing is connected to it (headset, external speakers) and the speakerphone is not turned on.

At three last section It’s better not to poke your nose in:

— Debug Info– it’s not clear why – info on backing up information or debugging it;

— Speech Logger– I haven’t fully figured it out, most likely it was logging during negotiations or recording chatter. If you check the box next to “Enable speech log”, then after completion phone call The corresponding files are created in the root directory of the memory card. Their name and structure take the following form: Wed_Jun_2014__07_02_23.vm (Wednesday_July_2014__time07_02_23.vm).

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

— Audio logger– good software for recording sound that supports quick search, playback and saving.

If you approach these modes wisely, you can adjust the volume of Android smartphones or tablets the way you want. When you enter any of the modes, your view will become available various settings volume (Type). Here is a list of the basic settings you need to know (Fig. 4):

figure 4

—Sip– settings for Internet calls;

— Mic– microphone sensitivity settings;

— Sph– settings for the earpiece speaker (the one we put on our ears);

— Sph2– settings for the second speaker (I don’t have one);

— Sid– skip, if you change these parameters during conversations on your smartphone or tablet, you can hear yourself instead of your interlocutor;

— Media– adjusting the multimedia volume level;

— Ring– adjusting the volume level of the incoming call;

— FMR– FM radio volume settings.

Next, under the settings selection item, we have access to 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 most quiet level, and level 6 is the loudest signal level. Each level can be assigned its own values, which are located 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, you need to erase the old value in the cell, then enter a new one (desired) and press the “Set” button (the one next to the cell) to assign (Fig. 6). Be careful when using the maximum values, as the speakers may produce uncharacteristic unpleasant sounds in the form of rattling and other unpleasant effects.

Figure 5 Figure 6

Warning! Before making changes, rewrite all factory values ​​(in case something goes wrong).

You should know this!

Editing modes in the engineering menu

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

To do this, you need to go to the engineering menu, select the “Audio” section, go to the “LoudSpeaker Mode” and in the volume settings select “Ring” - the volume settings for the incoming call. Then sequentially change (increase) the values ​​of all signal levels (level 0 – level 6). Also, for greater effect, you can increase the value of the Max Vol section. 0~160, if it is not the maximum (I set it to 155, with a higher value the speaker starts to “wheeze”).

Example 2. How to increase the volume when talking on the phone? (Increasing the volume level of the small speaker that we put to the ear).

Again, we go to the engineering menu that we already know, press 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 one for us level. In the Max Vol. 0~160, also can be changed to more high value volume power.

Example 3. Increasing the volume and sensitivity of the smartphone's conversational microphone

To adjust and set the required volume level and sensitivity of the spoken microphone, you need to go to “Engineering Menu” > “Audio” > “Normal Mode”> select Mic – microphone sensitivity settings, and for all levels (level 0 – level 6) assign one and the same value, for example 240. Now the interlocutor should hear you better.

Example 4. How can I increase the audio recording volume during video recording?

Let’s say there is a need to increase the volume level of sound recording when shooting video, then in the engineering menu for our loudspeaker (LoudSpeaker Mode), change the microphone sensitivity settings (mic), increase all values ​​at all levels (level 0 – level 6), for example, set to 240 at every level. I remind you to press the (set) button - reboot your favorite gadget and rejoice.

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

Good luck in your experiments, if something is not clear, write in the comments. We are waiting for your answers.

Code table for entering the engineering menu

Note: the table is constantly updated

Often in Chinese (and probably not only Chinese) phones, the settings in the engineering menu are far from optimal settings volume of the speaker, headset (headphones) and microphone, their correction will be discussed in this article.

How to get to the engineering menu of an Android phone

To get to the engineering menu, open the dialer and enter a special code: *#*#3646633#*#*

Also on some versions of Android the command may work *#15963#* and *#*#4636#*#*

If your phone's processor is not MTK, then different options are possible.

Here are the codes known to me for opening the engineering menu on different phones and tablets:

*#*#54298#*#* or *#*#3646633#*#* – smartphones based on MTK processor

*#*#8255#*#* or *#*#4636#*#* –Samsung smartphones

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

*#*#7378423#*#* – Sony smartphones

*#*#3646633#*#* – smartphones TEXET, Fly, Alcatel,

*#*#3338613#*#* or *#*#13411#*#* - smartphones Fly, Alcatel, Philips

*#*#2846579#*#* or *#*#2846579159#*#* – Huawei smartphones

*#*#2237332846633#*#* - devices from Acer

Immediately after entering, the command should disappear and the engineering menu should open. But on some devices you will still need to press the “Call” key

A list of sections of the phone's engineering menu will appear.

Just in case, take a notepad and pen and take note of the settings that were set on your phone before your intervention. You never know, anything can happen.

On my phone (based on an MTK processor), in order to get to the engineering menu I had to install free utility(program) from " Mobileuncle MTK Tools “, which opens access to the engineering menu (that is, it works similarly to dialing the magic combination *#*#3646633#*#*).

I am sure that you will also find free applications for other phones there.

Volume settings for the speaker, headset (headphones) and microphone of the phone through the engineering menu

For clarity, let’s briefly look at setting the device’s volume level:

We go into the program or dial the magic combination to enter the engineering menu. Next, in the menu that opens, select the section “ Engineer Mode»

A section will open in which you can select the engineering menu of the Android system (we skip it), and the engineering menu of the phone itself.

We need the phone’s engineering menu, so select the “Engineer Mode (MTK)” section. This point is circled in the figure with a red marker.

A very long menu will open, through which you can get to almost any phone settings. But it’s not enough to get to them, you need to know how to manage them.

Therefore, do not change what you have no idea about.

At worst, write down the parameters that were before your intervention, so that you can return them back later. Let's continue!

Since we are interested in adjusting the sound level, select the “Audio” item, I circled it with a red marker.

And... magic! The menu of interest to us for setting the parameters of the speakers and microphone opens.

Why did we actually go into this menu? Doesn't something work like that out of curiosity? Okay, let's continue to figure it out!

It’s worth stopping here and figuring out what all these menu items mean.

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;

Loud Speaker Mode(speaker mode) – it is activated when nothing is connected to the phone or tablet, and you turn on the speakerphone while talking on the phone;

Headset_LoudSpeaker Mode(speaker mode with a headset connected) – this mode is activated if you connect headphones or external speakers to your phone or tablet, and you turn on the speakerphone while talking on the phone;

Speech Enhancement(phone conversation mode) – this mode is activated in the normal mode of telephone conversations, and nothing is connected to it (headset, external speakers) and the speakerphone is not turned on.

Debug Info– it’s not clear why – information on backing up information or debugging it;

Speech Logger– I haven’t fully figured it out, most likely it was logging during negotiations or recording the conversation. 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 take the following form: Day of week_month_year__hour_minutes_seconds (for example, Friday_July_2016__time17_12_53.pcm).

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

Audio logger– used to record sound that supports quick search, playback and saving.

When you enter any of the modes, you will have access to different volume settings (Type). Here is a list of basic settings you need to know:

• Sip – settings for Internet calls;
• Mic – microphone sensitivity settings;
• Sph – earpiece speaker settings (the one we put on our ears);
• Sph2 – settings for the second speaker (I don’t have one on my phone);
• Sid – skip, if you change these parameters during conversations on your smartphone or tablet, you can hear yourself instead of your interlocutor;
• Media – adjust the multimedia volume level;
• Ring – adjust the volume level of the incoming call;
• FMR – FM radio volume settings.

Under the settings selection item, a list of volume levels (Level) is available (see figure).

There are usually 7 such levels, from level 0 to level 6. Each such level corresponds to one “click” on the volume rocker of your smartphone or tablet.

Thus, level 0 is the quietest level, and level 6 is the loudest signal level. Please note that each level can be assigned its own values, which are located in the Value is 0~255 cell. They should not go beyond the range from 0 to 255 (the lower the value, the quieter the volume).

To change this parameter, you need to erase the old value in the cell and write a new one, and then press the “Set” button (the one next to the cell) to assign.

Finally, at the bottom you can see the Max Vol section. 0~255 (on my smartphone, for example Max Vol. 0~255, it all depends on the manufacturer). At this point it is specified maximum value volume level, it is the same for all levels.

Dear friends. Item names may vary depending on different models. This is an MTK platform, so be prepared to rack your brain and look for a match in your menu. I have a Jiayu G3 phone.

For me the changes were applied immediately, but someone may need to restart the phone for them to take effect.

Although, it seems like you shouldn’t break anything, and if you don’t like the changes, you can always enter the old value..
But still..
YOU MAKE ALL CHANGES AT YOUR OWN RISK!!! Don't forget to turn on your thinking!

P.S.: I found a font size setting on my phone. It turns out you can increase it MORE!
P.P.S.: if something is still not clear, here is a video on setting up sound in the engineering menu:

Manufacturers of Android smartphones implement and use the engineering menu to test devices. It contains all kinds of tests and device settings that are not available to ordinary users. However, today, knowing the USSD command or downloading the application from PlayMarket, anyone can go to the engineering menu.

Why do you need a hidden engineering menu in Android?

Engineering menu (Engineering Mode) – at its core hidden application, which is used by developers for testing and installation optimal parameters mobile phone or tablet. Specialists check the operation of the sensors and, if necessary, make adjustments to the functioning of system components.

When working with the Android technical menu, be careful - changing some functions leads to malfunctions of the device.

How to enter the menu

To open the menu installed by the manufacturer, activate the dial pad on your smartphone and enter one of the USSD commands presented in the table. After entering the command, the numbers will disappear from the screen, and a menu will open instead.

In the dial pad, enter a combination of numbers and symbols to enter the menu

Table: combinations for launching Engineering Mode

Video: how to work in Engineer Mode

If the code does not work, run it in the standard way service menu fails, use third party applications- You can download them on PlayMarket. Recommended programs - “Launch the MTK engineering menu”, Mobileuncle Tools, Shortcut Master.

The manufacturer menu does not work on some device models with Android 4.2 JellyBean (x.x.1, x.x.2), as well as on Android 5.1 Lollipop. The menu is also invalid when installed firmware Cyanogen Mod. In Android 4.4.2, when you reboot, changes made in the application are reset.

“Launch the MTK engineering menu”

The application allows you to open and configure the engineering menu without typing digital commands. Works correctly on MediaTek processors (MT6577, MT6589, etc.) and Android systems 2.x, 3.x, 4.x, 5.x. According to user reviews, the program successfully performs its functions, but after rebooting the smartphone, the settings made using the application are reset.

Mobileuncle Tools program

The functionality of the application is similar to the previous one, but, in addition to accessing the engineering menu, the user has the opportunity to view information about the screen, sensor and device memory, as well as update the firmware, restore the IMEI number and improve GPS. For stable operation, root rights are required.

To enter the engineering menu, select Engineer Mode

Shortcut Master utility

The Shortcut Master program is designed to work with shortcuts and system applications: creation, search, deletion. It does not have a direct function for entering the engineering menu. But with its help you can view the list secret commands, valid on your device. And by clicking on the name of the command, you will see a drop-down menu in which there will be an item “execute”. Convenient and does not require unnecessary actions.

In the program call additional menu and select Secret code explorer to see a list of codes

Root rights to access the engineering menu

To get to the service menu on some versions of Android, the user must have superuser rights (root). You can obtain rights using specialized applications: Farmaroot, UniversalAndRoot, Romaster SU and others. To get Root access to your device using Farmaroot:

1. Install and run the program. Link to Google Play: https://play.google.com/store/apps/details?id=com.farmaapps.filemanager&hl=ru.
2. If the application supports installing root rights on your device, then you will see a list on the screen possible actions, among them - “Get root”. Select this item.
3. Choose one of the preset root methods.
4. The program will begin installation.
5. At the end of the procedure, you will see a success message. root installation access.

Instructions for obtaining root access through the Farmaroot application

Possible problems and solutions:

• the application closed mid-installation - restart the device and try again;
• root rights are not installed - try installing using a different method (select a new exploit in the application).

What can be configured in the menu

The appearance of the engineering mode and the ability to adjust parameters may vary depending on the tablet or smartphone model. In the menu, users most often adjust the sound, change the camera settings and use the recovery mode. Parameters for adjustment and procedure are given below. Be careful - menu item names may vary depending on various models devices! You act at your own risk.

Audio: Increase volume level

If your phone does not ring loudly enough, in the engineering menu find Audio section and go to LoudSpeaker Mode. Select Ring. For each signal level (level 1–6), change the values ​​- set the numbers in ascending order, from 120 to 200. Increase the value in the Max item. Vol - maximum 200. Press the SET button to save the settings.

Change the values ​​one by one maximum volume for each level

Audio: Increase phone call volume

To enhance the speaker tone for conversations, in the Audio service menu section, select Normal mode and open the Sph item. Set the values ​​for signal levels (level 1–6) from 100 to 150, and the number for Max. Vol. – up to 160.

By adjusting the speaker volume, you will be able to hear your interlocutor better during a call.

To increase the sensitivity of the microphone, go to the menu Audio - Normal mode - Mic. For each level assign same values microphone sensitivity, for example, 200. Press the SET button, reboot and check whether the other party can hear you better.

Increased microphone sensitivity will allow the other person to hear you better

Video: adjusting sound parameters in the engineering menu

Battery: Disable unused frequencies

Smartphones quickly drain battery life running applications, maintaining cellular communications, and network connections. Using the engineering menu you can increase the battery life.

Modern devices scan several GSM frequencies - 900/1800 MHz and 850/1900 MHz. In Russia there is a pair of 900/1800 MHz, which means there is no need to scan the network at other frequencies. The radio signal for the second pair can be turned off, which will significantly save the charge level.

In Engineer Mode, open Band Mode. Disable unused frequencies by unchecking the corresponding items - PCS1900 and GSM850. If the device supports two SIM cards, open the SIM1 and SIM2 items one by one and perform the indicated steps in each. Press the SET button to save the settings.

Disabled frequencies save battery power

If your smartphone and SIM card operate in 3G networks, disable the networks that are not used in Russia: WCDMA-PCS 1900, WCDMA-800, WCDMA-CLR-850. Press the SET button again.

You can enable scanning of disabled networks by returning to the same menu and checking the boxes.

Camera: photo and video settings

By default, Android devices save pictures in JPEG format. Meanwhile, photographers prefer to shoot and process material in RAW to gain more editing options. The technical menu allows you to select the desired image format.

Find Camera in the menu and select Capture Type. Set the photo format to RAW and press SET. Also in the Camera menu you can increase the size of pictures, set the ISO value, enable shooting in HDR for higher photo detail, and set the frame rate for videos. After changing each parameter, remember to press SET to save the settings.

Recovery Mode

Recovery Mode(Recovery mode) - analogous to Bios on a computer, allows you to control the device without logging into the Android system. Recovery mode features:

• resetting settings to standard;
• firmware update;
• access to root rights;
• creating a backup copy of the OS;
• removal of personal data from the system.

In Recovery Mode, do not perform an action if you are not sure what it will lead to. Some commands may harm the device and system.

If the settings are not saved

Users who have access to the technical menu complain that the parameters changed in it are not activated or are reset when the device is restarted.

To activate the settings after changing the parameters, tap on the SET button at the bottom of the screen. If the parameters are reset after rebooting the device, try accessing the technical menu not through the application, but using a digital command.

After setting the settings, do not forget to press the SET button

Service codes for Android devices

Besides technical menu, secret USSD codes allow you to control the functionality of Android smartphones - combinations of numbers and symbols, by typing which the user performs an action. Secret codes for different devices are given in the table.

Table: list of secret commands for Android

If for some reason the service code did not work, do not worry - install and run the Secret Codes application (Link on Google Play: https://play.google.com/store/apps/details?id=fr.simon.marquis. secretcodes&hl=ru). The program will analyze the combinations active in the device and offer you a list. You can activate the combination directly in the application with one click on the name.

There are many ways to improve your Android mobile device using the engineering menu. The menu structure differs in different device models, but the basic functionality is preserved everywhere. When opening and changing parameters in the service section, be careful - some commands lead to system failures and damage to the device.

The engineering menu on Android devices is a special “built-in” application into the operating system that allows you to fine-tune the device. This is necessary to debug the operation of the hardware and, of course, the software. But often users want to change some settings at their own discretion. In this case, the question arises of how to enter the Android engineering menu. This can be done with special service codes or third party software.

Developer menu: what are the options?

Settings and menu design on Android devices may vary depending on the phone manufacturer. In general, users resort to using the engineering menu for the following reasons:

• Setting up audio on the phone (ringer volume, interlocutor’s voice during a conversation);
• Changing camera settings;
• Using recovery mode;
• Setting microphone sensitivity;
• Disabling unused frequencies to save phone battery;
• Obtaining information about the device's MAC address;
• Setting up Bluetooth and Wi-Fi.

The Android engineering menu provides the user with almost limitless possibilities. But you should always remember that only advanced users can use it. Changing some settings may cause incorrect operation smartphone or tablet. If you don't know what each menu item directly does, simply leave it alone.

The developer mode includes setting up Hardware Testing equipment and also contains the following items:

• Audio – volume control in the phone speakers.
• Camera – allows you to configure various camera parameters (image size, type, etc.).
• Diving current camera shows the current of the camera.
• CPU Stress Test performs a test load on the central processor.
• De-sense is a device manager that manages configuration parameters.
• Display – setting the frequency of the outgoing signal.
• IO – setting up input/output operations.
• Memory – key information about memory.
• Power – information about the battery.
• SD Card Test - testing a memory card.
• TouchScreen – setting up the touch screen, checking sensitivity.
• USB - performance testing USB port on your phone.

In the Connectivity tab you can get information about devices that work with the outside world. These include Bluetooth, Wi-Fi and FM module. The Log and Debugging tab allows you to view the battery log, set the debugger level and run a special MTK log. In the Others tab you can change fonts, as well as view the temperature of the processor and battery.

Entering the menu: using code combinations

To enter the engineering menu as quickly and easily as possible, you will need special engineering codes. Each manufacturer has its own combination, which opens access to the engineering menu in Android.

To enter the menu you need to:

In most cases, this technique allows you to open the service menu. Below are some combinations for the most popular phones:

• Models from HTC - *#*#3424#*#*, *#*#4636#*#* or *#*#8255#*#*;
• Samsung devices - *#*#197328640#*#* or *#*#8255#*#*;
• Sony smartphones - *#*#3646633#*#*, *#*#7378423#*#* or *#*#3649547#*#*;
• Huawei phones - *#*#2846579#*#* or *#*#14789632#*#*;
• Mobile from ZTE - *#*#4636#*#*.

There is also universal code, which is suitable for most smartphones and tablets running on an MTK processor. You can look in the specifications of your device to see what processor you have installed. If this is a MediaTek (MTK) product, then try using the combination *#*#54298#*#* or *#*#3646633#*#*.

If it works, you will see the developer menu in front of you. Some engineering codes on Android do not work in operating version 4.2.1 and 4.2.2.

Using Third Party Applications

How to enter the engineering menu on Android if Android codes don't work? There is a way. To enter the engineering menu, you will need one of the applications that will allow you to enter developer mode without entering a combination. There are several similar programs in the official Google Play store. One of them is “Launch the MTK engineering menu”.

To use it, you need:

1. Go to the Play Market and enter the name of the program in the search bar.
2. Download and install it.
3. Launch on your phone.

After that, you will see a couple of tabs with different settings.

The application allows you to perform various tests (for example, a processor stress test), obtain information about the modem or memory, and much more. You can also make changes to the hardware. To do this, you just need to open the appropriate sections and configure the settings. In this case, the phone will be on all the time.

An alternative option is the Mobileuncle tools program. You can download it on the Internet. Install the application, and then go to the “Engineer Mode” submenu. Almost all developer menu items will be available in it.

Now you know how to enable the mode Android developer. It will help you quickly make the necessary settings or monitor individual components of your smartphone.

Smartphones and tablets under Android control have a lot 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.

What is it and why is it needed?

We are talking about a special program that developers use at the final stage of configuring the software platform of a mobile device. With its help they contribute latest changes into operation of the device, check the functioning various sensors and perform testing of system components. Hidden functionality is also used to obtain large quantity system information and conducting various tests (about 25 pieces).

Attention! This section is intended for experienced users who bear full responsibility for the consequences.

The engineering menu is available on smartphones and tablets running on MediaTek processor . On the Qualcomm chipset it is either reduced or absent altogether.

How to open 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 code did not work or you do not have a dialing application (relevant for tablets that do not support calls), the MobileUncle Tools or MTK Engineering applications, which can be downloaded for free via Google Play, will help.

Advanced users of modern smartphones and tablets take advantage of the numerous features that come with engineering Android menu. It allows you to obtain information about the mac address, check or configure the operation of Wi-Fi, Bluetooth, update the software of the camera, speakers. Very often, using such a menu you can improve the sound on your device and make other fine adjustments. For example, return the original Google account settings, specify settings for blocking and turning off the device, set settings that allow you to create backup copy important information. Before entering the engineering menu, you need to understand that rash actions can lead to a malfunction of the device. It is advisable for the user to remember what changes were made to the system in order to return all settings to their previous state if necessary.

How to enter the engineering menu using the standard capabilities of the device?

The list of functionality can be opened by typing a specific combination of characters in the device call window. The Android engineering menu code varies depending on the brand of phone or tablet. Each manufacturer sets its own combination. Such information is usually indicated in the instructions for the phone and on official websites. Users of modern devices usually have no difficulty finding the required code.

Below we provide a table of the most common combinations. It is not recommended to use them unless your device is one of the listed brands.

The developers do not recommend executing such commands without certain knowledge and experience. But often only this method helps to quickly solve a number of problems associated with returning the device to original condition, receiving additional information about the device. The engineering menu is presented in English, which makes it understandable for most users.

Using additional programs

It is not always possible to find out the combination that is suitable directly for your device. In such situations, you can install special software on your mobile device, which will allow you to open a list of the functionality of your smartphone or tablet with a few clicks. It is publicly available for different versions of Android and device models.

The program for entering the Android engineering menu can be installed via a USB connection to a personal computer or laptop. One of them is called Mediatek Engineer Mode. It is a file EnMode.apk, which must be transferred to the device memory and installed in the usual way. This program is suitable for devices operating on the MTK processor. The user has the opportunity to download free and paid versions of the software.

In the Google Play store you can download the Mobileuncle MTK Tools utility. It is designed for smartphones and tablets running Android 2.1. and later versions. The description says that such a utility is also only suitable for devices equipped with an MTK processor.

The Mobileuncle Tools program is suitable for owners. There are other utilities, for example, Shortcut Master, engineering MTK menu, launching the MTK engineering menu. Before installing them, we recommend that you read the application rating, reviews from other users, and also check your device for compatibility.

Setting up optimal sound by opening the engineering menu

One of the most common reasons why users look for information on how to enter the engineering menu is the need to fine-tune the sound. The following situations may arise:

• Poor audibility when the speakerphone is on
• Sudden changes in the sound of an incoming call while listening to audio
• Insufficient signal volume
• Quiet sounds while recording video
• Quiet operation of the headset and microphone.

This is just a small list of installed settings that can be changed through the engineering menu of a modern mobile device. Sound settings are done through the Audio section, which is displayed immediately after entering the menu. Then various tabs will appear on the screen, such as Headset Mode. This tab allows you to set sound parameters that are activated when you connect a headset. Normal Mode sets the sound in the normal state of the mobile device (without connecting headphones or speakers).

LoudSpeaker Mode tab, which are activated when the loudspeaker is turned on. Headset LoudSpeaker Mode allows you to make settings for active mode speaker while a headset is connected to it. The Speech Enhancement tab provides settings that come into play when communicating over a mobile network.

In any of the modes, you can fine-tune the microphone or increase the volume (see table).

The volume of any sound parameter has seven levels - from 0 to 6. The higher the value, the louder your device will sound. We do not recommend setting the maximum settings, as this promotes faster performance. In many devices, setting the volume to maximum can result in unpleasant noise.

The engineering menu is a mechanism for fine-tuning mobile devices operating on Android platform. For developers, the list of such features opens up new options when implementing applications. Of course, such a menu is used not only for adjusting sound parameters. It is an important tool that supports optimal performance smartphones and tablets. But it's best not to make changes you're not sure about.

Often in Chinese (and probably not only Chinese) phones Android based in the engineering menu there are far from optimal volume settings for the speaker, headset (headphones) and...

Often in Chinese (and probably not only Chinese) phones based on Android in the engineering menu there are far from optimal volume settings for the speaker, headset (headphones) and...

A beginner who bought a smartphone or tablet based on the operating system Android systems, after a while he 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;
• determination of the level of harmful radiation (SAR) on a single device;
• FM radio settings and behavior.

Video: options for customizing a smartphone through the engineering menu

Commands for accessing menus

Commands for accessing the engineering menu vary depending on the manufacturer. There are also general commands for all versions of Android, allowing 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

Factory Android service codes, which show technical information about the device, are often not associated with the manufacturer. Basically, they are all built into Android by default. Command “numbering” range agreed upon by Google- as a creator operating system Android - with manufacturers of tablets and smartphones.

Table: Android factory service codes

The most popular service codes of the engineering menu

The most popular codes, allowing 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 specific brand of device is suitable - this is the manufacturer’s protection 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, Samsung does this. Some of the commands entered can be harmful, such as software Android and the device itself.

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

In order for the settings made using the Android engineering menu to be saved, you need to exit 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 to set the value of any setting and confirm it with the Set key, turn off or reboot the smartphone by pressing the power button, remove 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 pre-installed 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 one may be suitable - or, conversely, the most “fresh” one - 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 software component Superuser (“Superuser”), which provides access not only to the engineering menu, but also to system folder system.
2. Download from Android Market any of the applications that perform Android hacking without the help of a computer. Suitable here different programs: UniversalAndRoot, 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 settings in the engineering menu will be in Russian. In the most earlier versions Android (1.x, 2.x) all service settings were on English. 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.

Android engineering menu is one of the most useful tools“advanced” user, preventing him from wasting the hardware resource of his device and the resource of cellular and wireless networks. 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 operation of mobile equipment in cellular networks. This is the shortest path to professionalism.

Each Android device has a specific mode called Android Recovery. It is used for recovery correct operation phone. In it, you can reset all the settings of your smartphone back to the factory or originally installed ones. In addition, this mode is used to flash the phone's firmware and obtain Root rights. You will learn further in this article how to enter the recovery menu on Android.

Methods of getting into recovery depend on the brand and specific model your phone. First of all, it is advisable for you to rummage through the instructions or search for information about the exact model of your phone on the Internet. Here we will point out a few relatively standard methods, how 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" - is the common name for the process of backing up data on your phone. Why do this? If something goes wrong and your data disappears, you can still restore it. What could go wrong? Sometimes flashing a 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 recovery menu on Android in order to upgrade it in the future, make a backup first.

Most often this option is hidden in the " General settings". 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 go to the recovery menu to reset the settings. You can do this in normal operation mode.

How to enter the recovery menu on Android: basic button combinations

If you need recovery mode because your phone refuses to behave well, then, naturally, we will no longer be able to reset the state through “Settings” to restore the system. Usually, in order to get into recovery, the volume buttons and the power button are used.

The combination depends on the model and brand of your phone. Most likely, you will 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 very virtuoso finger skills from the owners of their devices).

What is Android Recovery?

After you have entered recovery, most likely you will see the picture 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 functions:

Custom recovery menus

If you downloaded a special recovery menu to your phone, then it, unlike the preinstalled or “native” one, will be called custom. The main reason for the existence of alternative recovery menus is the more advanced functionality of custom versions and various additional features, for example, installing unofficial firmware.

The most popular custom menus are Clockwordmod Recovery and Team Win Recovery Project. If the first one is similar in control to a regular recovery menu - using the volume and power buttons, then when the second one is running, 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 certainly convenient if the screen works without errors. If the “glitch”, because of which you need to go into recovery, is in the screen, difficulties will arise.

USB debugging: how to enter the recovery menu on Android from a computer?

In order for you to be able to enter the recovery menu of your phone from your PC, first take the time to find and download it to your computer special program, which makes this possible. But even before that, look for the “USB Debugging” option in the settings of your device - you will find it in the section for developers. Then download AdbRun on your PC. And from there, knowing the commands for the console, you can control some functions of the recovery menu.

Now, if suddenly the recovery menu on Android does not open in the usual way on the phone itself, you can connect the device to the computer using a USB cable and control it from there.

Leaving gracefully: how to leave the menu

If you entered this mode out of curiosity, and now you are worried about how to exit the recovery menu on Android so that it does not lead to irreversible changes to your data, let us dispel your worries.

Most often, exiting is much easier to do than entering the menu. In most well-known recovery menus, this item will even be the first in the list - Reboot System Now("Reboot system now"). Even if you can’t do this, you can cheat and do what all users usually do first of all if the phone “glitches”: reboot using the power button, remove and reinsert the battery, or in the end just leave the phone to discharge - later it will turn on again in normal operation.