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How to open and configure the engineering menu on Android - instructions and secret codes. How to enter the engineering menu on Samsung Engineering menu android 4.4 2 samsung galaxy

Service become useful in cases where the user needs to access some features that are not available in normal mode. By and large, they were invented to test the operation of the device, but we can also use them to call up various menus.

Advanced users deal with them all the time. For example, on some Galaxy devices, you can adjust the sound volume, find out hidden information about the phone, and much more. Now we will analyze the most useful service codes that are suitable for users of Samsung smartphones and tablets.

How to enter a service code?

Everything is very simple. Open the dialer and enter the numbers with the characters that correspond to the menu you want to execute. After entering the last character, the menu should automatically start, no additional actions need to be taken.

Denial of responsibility: this information is intended for advanced users. You should not try to change anything in the settings if you are not familiar with mobile devices. We are not responsible for any subsequent problems, including loss of data or damage to hardware.

All service codes for Samsung Galaxy smartphones and tablets

I repeat that you should not touch those parameters, the meaning of which you do not know. You risk losing the functionality of your phone or valuable data.

Useful Keyboard Shortcuts for Samsung Galaxy

Enter the recovery: in the off state of the phone, hold down the volume buttons up, Home and power
Bootloader / fastboot mode: you also need to turn off the phone, and then hold down the volume buttons, Home and power
Take a screenshot: on the desired screen, hold down the volume up, power and, of course, the Home button.
Force the phone to go into the off state: simultaneously hold down the volume down and power buttons

We hope these system codes and key combinations will be useful to you, but, as for the 100th time, we want to warn you that you should use them with double caution.

Many devices running the Android OS are additionally equipped with a special environment - the engineering menu. With its help, the user has the opportunity to test all the sensors and modules of the mobile device, as well as adjust certain parameters of the gadget for himself for more comfortable use. In Samsung phones, Engineering Mode is hidden in the system by default. And in different models, the entrance to it is performed differently. Yes, and the functionality of this area may also differ. Let's look at how to enter the engineering menu on the Samsung Galaxy A5, Galaxy S6, J3 and other smartphones from the Galaxy line.

Where to find the engineering menu on Samsung Galaxy

The main purpose of Engineering Mode is to fully test mobile devices at the final stage of their production. The specified environment was originally developed for debuggers of smartphones and tablets, but today anyone can use it. The main thing is to know how to open the technical mode on Galax.

You can enter the engineering menu using a special combination (USSD code), which is written in the dial pad. At the same time, in different phone models, these commands may differ:

in Samsung J7 and J1, the combination *#*#0011# is relevant;
for Samsung Galaxy A5, Galaxy S5, Galaxy S6, *#*#8255#*#* or *#*#197328640#*#*;
on Samsung Galaxy A3 the code is *#*#9646633#*#*;
for Samsung Galaxy S3 – *#*#0#*#*;
in Samsung Galaxy S7 Edge - *#*#8255#*#* or *#*#4636#*#*.

On other devices from the Galaxy line, you can use the service combinations *#*#4636#*#*, *#*#8255#*#* or *#*#3646633#*#*.

If you can’t open the engineering menu using the above commands, you can resort to one of the programs designed specifically for this purpose (EngineerMode, Mobileuncle Tools, Shortcut Master, etc.). To start the technical mode, just install and run one of the utilities. After that, you will automatically enter Engineering Mode.

All applications for opening the engineering menu work only with MTK processors (MT6573, MT6577, MT6589, etc.) and with some Exyon chips. For phones equipped with a Qualcomm CPU (for example, Samsung Galaxy A5), such software will be useless.

The main features of the engineering menu on the Samsung Galaxy

Having figured out how to enter the engineering menu on Samsung, let's look at its main features. A full-fledged Engineering Mode for MTK chips is equipped with a large number of tools with which you can perform a complete diagnosis and fine-tune Samsung in many ways.

However, many smartphones have a stripped-down version of the technical mode, which somewhat reduces its functionality. And in mobile devices based on the Qualcomm processor, through the engineering menu, you can only view information about some modules and perform small tests of the main elements of the phone (display, modem, SIM cards and battery).

On the Samsung Galaxy A5 and Galaxy S6, the main sections of the engineering menu are:

Telephony;
Wireless interfaces (Connectivity);
Test mode (Hardware Testing).

In the Telephony tab, the user has the ability to:

The Connectivity section is intended for diagnosing and configuring Wi-Fi, Bluetooth and FM wireless modules. It is not recommended to change anything here, as this can lead to the failure of the smartphone.

The most popular engineering menu tab is Hardware Testing. This is where you can test the performance of the processor, battery, speakers, camera, display and GPS module. This area allows you to make a complete diagnosis of Samsung at the time of its purchase and identify possible product malfunctions.

Android smartphone manufacturers 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 enter the engineering menu.

Why do you need a hidden engineering menu in Android

Engineering Menu (Engineering Mode) is an inherently hidden application that developers use to test and set the optimal parameters for a mobile phone or tablet. Specialists check the operation of sensors and, if necessary, make adjustments to the functioning of system components.

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

How to enter the menu

To open the menu set 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.

Table: combinations to start Engineering Mode

Device manufacturer	Team
Sony	##7378423##
	##3646633##
	##3649547##
Philips	##3338613##
Philips	##13411##
ZTE, Motorola	##4636##
HTC	##3424##
	##4636##
	##8255##
Samsung	##197328640##
	##4636##
	##8255##
Prestigio	##3646633##
LG	3845#*855#
Huawei	##2846579##
Huawei	##14789632##
Alcatel, Fly, Texet	##3646633##
Smartphones and tablets with a MediaTek processor (most Chinese devices)	##54298##
	##3646633##
Acer	##2237332846633##

Video: how to work in Engineer Mode

If the code does not work, and you cannot start the service menu in the standard way, use third-party applications - you can download them on PlayMarket. Recommended programs - "Start the MTK engineering menu", Mobileuncle Tools, Shortcut Master.

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

"Launching the MTK engineering menu"

The application allows you to open and configure the engineering menu without a set of digital commands. Works correctly on MediaTek processors (MT6577, MT6589, etc.) and Android 2.x, 3.x, 4.x, 5.x systems. 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

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

Shortcut Master Utility

The Shortcut Master program is designed to work with shortcuts and system applications: creating, searching, deleting. There is no direct function to enter the engineering menu. But with its help, you can view a list of secret commands that are active 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 doesn't require any extra work.

Root rights to access the engineering menu

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

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

Possible problems and solutions:

the application closed in the middle of the installation - restart the device and try again;
Root rights were not installed - try installing using a different method (choose a new exploit in the application).

What can be configured in the menu

The appearance of the engineering mode and the options for adjusting the parameters may vary depending on the model of the tablet or smartphone. In the menu, users most often adjust the sound, change the camera settings and use the recovery mode. The adjustment parameters and procedure are shown below. Be careful - the names of menu items may vary in different device models! You act at your own risk.

Audio: increase volume level

If your phone is not loud enough, find the Audio section in the engineering menu 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. Vol - maximum 200. Press the SET button to save the settings.

Audio: increase the volume of a telephone conversation

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

To increase the sensitivity of the microphone, go to the menu Audio - Normal mode - Mic. For each level, assign the same microphone sensitivity values, for example, 200. Press the SET button, reboot and see if the other person hears you better.

Video: adjusting sound settings in the engineering menu

Battery: disable unused frequencies

Smartphones quickly use up battery life for 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, a pair of 900/1800 MHz operates, which means that 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 the Band Mode item. Disable unused frequencies by unchecking the corresponding items - PCS1900 and GSM850. If the device supports two SIM cards, open SIM1 and SIM2 in turn and follow the steps in each. Press the SET button to save the settings.

If your smartphone and SIM card work in 3G networks, disable 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 tend to shoot and process their footage in RAW for 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 video. After changing each parameter, remember to press SET to save the settings.

recovery mode

Recovery Mode (Recovery Mode) - an analogue of Bios on a computer, allows you to manage the device without logging into the Android system. Recovery Mode Features:

resetting the 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 can harm the device and the 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 the device is rebooted, try entering the technical menu not through the application, but using a digital command.

Service codes for Android devices

In addition to the 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 shown in the table.

Table: list of secret commands for Android

Manufacturer	Digital team	Meaning
Codes for most manufacturers	##7780##	Rollback settings and uninstall user applications
	27673855#	Firmware change, total rollback of settings.
	##232339## ##526##	Checking Wireless Connections
	##34971539##	Detailed information about the camera
	##232338##	View Wi-Fi Address
	##273283255663282##*	Activate media backup on your phone
	##1472365##	Express GPS test
	##0##*	Screen check
	##2663##	Viewing touchscreen information
	##2664##	Touchscreen testing
	##4636##	General device and battery data
	##0673## ##0289##	Audiotests
	##7262626##	GSM reception test
	##0842##	Vibration and display brightness test
	##3264##	Information about RAM memory
	##232331##	Bluetooth communication test
	##8255##	Checking Google Talk
	##232337##	Bluetooth address information
	##1234##	Firmware data of the device
	##44336##	Device build date
	*#06#	Information about the IMEI number
	##197328640##	Service activity test
	##1111##	Version of free-to-air programs
	##2222##	Iron number for free-to-air
	##0588##	Proximity sensor test
Sony (unified commands operate on devices)	05*#	Unblocking a PUK code
Motorola	*#06#	IMEI
	##786##	Roll back settings to original
	##1234## ##7873778##	Opening apps as root
	##2432546##	Check for updates
	##2486##	Entering the service menu
HTC	##4636##	Service menu
	##3282#	EPST System Application
	##8255##	G-talk monitor
	##33284#	Network status
	##3424##	Functional test
	##3424#	Device Diagnostics
	##7738#	Protocol Diagnostics
	##8626337#	Voice Coder
Samsung (general codes effective)	##778 (+call)	EPST menu activation
LG (work with codes replaces the technical menu)	3845#*855#	International Devices
	3845#*400#	Chinese devices
	5689#*990#	Sprint
	##228378 (+ challenge)	Verizon Wireless
	3845#*851#	T Mobile
	3845#*850#	AT&T

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

How to enter the engineering menu for the Galaxy S5. Secret codes.

The engineering menu of a smartphone is a special section that allows you to expand or adjust the settings and any set parameters in the device system.

If the user needs to go there on their Samsung smartphone, they need to follow simple steps. To eliminate various defects in the operation of your devices, you can contact the Samsung service center, addresses in Moscow and other cities of Russia, you can find out by going to the official website at the link.

How to enter the engineering menu on Samsung

In order to enter the engineering menu of a Samsung Galaxy, Galaxy Note, Neo, Duos phone, you must enter a specific command:

For earlier models, this is *#*#8255#*#* or *#*#4636#*#*.

After you write this command, the combination consisting of symbols will immediately disappear, and the engineering menu of your phone will open in front of you.

Here are some more service codes:

*#06# get IMEI

*#1234# firmware version

*#0228# energy consumption information

*#0808# USB setup

#0011# or #0909# Service mode

*#0283# ring testing

*#9900# dump mode

Please note that on some devices, you need to press and call the call key to perform this operation. If you have any difficulties, then contact the Samsung smartphone repair service center.

You need to understand that this method may not work on every phone. The fact is that different models of smartphones work on different versions of the Android platform, depending on the year of manufacture and manufacturer. From here they have different ways to enter the engineering menu.

If none of the above combinations of numbers helped you enter this section of your phone, then you need to go the alternative way - using a special application for this.

You need to download and install Mobileuncle MTK Tools 2.4.0 on your phone. on Google Play. With this program, you can quickly and seamlessly go there with advanced features on your phone.

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