How to enter the engineering menu on Samsung

Table of Contents

How to enter the engineering menu in Samsung

All modern mobile devices (smartphones and tablets) have a complex hardware and software structure. In addition to the external design and control interface, which are visible to every user, many secret components are hidden inside these devices. One of these components is the engineering menu, which is built into almost every gadget running on the Android OS. Let’s consider the ways and nuances of access to Engineering Mode on Samsung smartphones.

Engineering Mode on Samsung Galaxy

Next, we will consider the engineering menu in Samsung Galaxy, as in one of the most extensive lines of this manufacturer to date. According to the standard, the hidden service components, which this menu is, can be accessed by entering a special USSD code consisting of numbers and signs “”, “#”.

Entering is carried out through a standard dialer, sometimes you need to press the call button if the automatic transition to the desired menu after dialing the combination did not go.

Unfortunately, there is no single code today, because each Galaxy device is individually programmed by the manufacturer:

  • J7 / J1. ##
  • A5 / S5 / S6. ### or ###
  • A3. ###
  • S3. ###
  • S7 Edge. ### or ###

All other Galaxy devices can be put into customization mode with the combinations listed above for the S7 Edge plus: ###.

In cases where the engineering menu persistently does not want to open after entering any of the above combinations, you should use special software: EngineerMode, Mobileuncle Tools, Shortcut Master, etc. It’s simple: install, run, work!

These applications are relevant exclusively for devices powered by MTK processors, as well as those powered by Exyon chips. In the case of hardware from Qualcomm, as on the Galaxy A5, these utilities will not work.

An example of using Engineering Mode to good effect

Through the engineering menu, you can reduce the load on the device’s battery. This can be done in the BandMode section of the Telephony tab. This is the same item that allows you to select the scanned GSM frequencies. The scheme of actions is quite simple:

    After starting the service mode, go to the Telephone. BandMode section.

Now the antenna module will not be in constant search for a non-existent network, and the autonomy of the device will increase.

Engineering menu features

Having figured out how to enter the engineering menu in Samsung, you can proceed to consider the key features of this service mode.

Complete Engineering Mode, developed for MTK processors, has an extensive toolkit aimed at carrying out complete diagnostics and high-quality device configuration.

However, this functionality of the service mode is not available to absolutely all smartphones, since it is cut by the manufacturer at the development stage. For example, in the case of chips from Qualcomm, the engineering menu is used exclusively for acquaintance with information on a number of hardware components, as well as for conducting various basic tests.

In the case of the Galaxy A5 and S6 smartphones, the key sections are:

  • Telephony;
  • Connectivity;
  • HW Testing.

The Telephony tab has an intuitive Russian translation “Telephony” and contains the following items:

  • enabling / disabling the answering machine for incoming calls;
  • selection of GSM frequencies used in the course of a conversation via a cellular network;
  • selection of connection standards used in the work (for A5). 2G, 3G, LTE or their various combinations;
  • setting up access to the Internet, etc.

The Connectivity section covers the work of other wireless connections: Wi-Fi, Bluetooth, FM radio. It is most reasonable not to make configuration changes in this section, as they can lead to the loss of performance of individual components or the smartphone as a whole.

The most useful tab is HW Testing. She is responsible for the full diagnostics of the hardware components of the smartphone: processor, battery, acoustics, optics, sensor, wireless modules, etc.

The purpose of the engineering menu

Actually, first you should understand why the developers hide such a menu in the shadow of the software shell. Through such a “secret” service, you can test all sensors, modules and systems of a smartphone, as well as make configuration changes to its functionality to make control more accessible and comfortable.

Previously, Engineering Mode was only used by developers and repair / debug professionals. The device underwent full testing, and when all norms and requirements were met, it was sent for sale.

This review allows you to understand all the usefulness of the engineering menu and the peculiarities of working with it on Samsung Galaxy smartphones. It is enough in the future to familiarize yourself with the nuances of setting up the hidden component of the system in order to perform its “fine” adjustment for more comfortable work.

Thoughtlessly making changes is not worth it, as this can be fraught with problems in the operation of the device.

Universal code to reset Samsung settings

So, sometimes a certain combination of numbers is quite capable of coping with the temporary “glitches” of the phone. But it is important to understand what characters and numbers you are entering, and what they are for in general. Sometimes an incorrectly used service command can completely destroy not only user settings, but also the entire software part of the device. Therefore, before using the courtesy code provided, make sure the source is trustworthy.

And now about the main thing. The first service team presented is not always effective, nevertheless, your device may fall under a successful percentage of effectiveness, especially if the year of release is not the first, so to speak, freshness. Dial on the keypad of your “Samsung” —27672878 # and press the “call” key. The device should reboot. But partial or complete loss of information stored in the memory of the mobile is possible. Therefore, if technically possible, keep at least your phone book.

Otherwise, if you desperately need the integrity of subscriber contacts, it would be more expedient to contact a specialized workshop. There is another code that is able to wrest an electronic organism out of oblivion, this is 27673855 #. This set of numbers will certainly make a complete reset of the Samsung device, as it is effective for most devices of the Korean manufacturer.

Hardware Testing. Hardware setup and verification, touchscreen calibration

  • Audio. change sound parameters, for example, sound amplification, switch between profiles. One is for normal use of the device, the second is for controlling the volume in the headphones, the third is responsible for speakerphone when using a headset.
  • Camera. change functions that are not available in the standard camera interface, for example, saving photos in RAW format.
  • Driving Current Camera. displays the current from the camera sensor.
  • CPU Stress Test. test of processor stability, evaluation of the processor-memory link, cooling systems and power supply.
  • Deep Idle Setting. deactivation of sleep mode. will not allow the device to “fall asleep”.
  • Sleep Mode Setting. sleep mode parameters.
  • ChargeBattery. battery information.
  • Sensor. calibration of the display sensor.
  • Multi-Touch. check the number of coordinates of simultaneous touches of the touch screen.
  • Location Engineer Mode. view GPS settings.
  • Location. Advanced navigation configuration, GPS module setup and view of detected satellites.
  • Log and Debugging. information about the battery (charge, temperature, voltage, operating time), device memory, the ability to change the level of logs.
  • Others. Collected options not included in other sections, for example, setting fonts. Some of the options are not available without root rights. In smartphones and tablets from the Chinese brand, the service mode is represented by five sections.
  • Automatic Test. automatic testing of the device.
  • Single Item Test. manual launch of any of the 25 available tests: communication modules, sensors, physical keys, touch display, memory card, SIM slots for SIM detection, earpiece, camera, radio.
  • Test Report. reports and results of passed tests.
  • SW add HW version. data about the software environment.
  • Device View. detailed information about the hardware part of the device.

With the engineering menu, the user will be able to use his gadget to a greater extent: test its hardware components, get a detailed summary of their work, monitor the battery efficiency and try to improve the autonomy of the smartphone. With high-quality speakers, you can increase their maximum volume. Some functions on some models are not available without root rights.

READ  How to update Android on a Samsung tablet

Engineering Mode on Samsung Galaxy

Next, we will consider the engineering menu in Samsung Galaxy, as in one of the most extensive lines of this manufacturer to date. According to the standard, the hidden service components, which this menu is, can be accessed by entering a special USSD code consisting of numbers and signs “”, “#”.

enter, engineering, menu, samsung

Input is carried out through a standard dialer, sometimes you need to press the call button if the automatic transition to the desired menu after dialing the combination did not go.

How to enter the engineering menu with the Android operating system

Unfortunately, there is no single code today, because each Galaxy device is individually programmed by the manufacturer:

  • J7 / J1. ##
  • A5 / S5 / S6. ### or ###
  • A3. ###
  • S3. ###
  • S7 Edge. ### or ###

All other Galaxy devices can be put into customization mode with the combinations listed above for the S7 Edge plus: ###.

In cases where the engineering menu persistently does not want to open after entering any of the above combinations, you should use special software: EngineerMode, Mobileuncle Tools, Shortcut Master, etc. It’s simple: install, run, work!

These applications are relevant exclusively for devices powered by MTK processors, as well as those powered by Exyon chips. In the case of hardware from Qualcomm, as on the Galaxy A5, these utilities will not work.

Codes that can be dangerous to use

It was mentioned above that some combinations can lead to irreparable or unexpected changes in the smartphone operating system. It is worth noting the most common of them:

  • ###. reset all user settings, data and applications (in other words, return to the factory state);
  • 27673855 #. complete reinstallation (flashing) of the system;
  • ###. allows you to immediately turn off the device when you press the power button;
  • #, or #, or #. restart the smartphone.

Entering such codes should be carried out only if you are completely sure of your actions.

Telephony. Mobile communication settings

  • Auto Answer. activation and deactivation of auto answer to incoming calls.
  • Band Mode. manual selection of the frequency range in which the GSM module operates. The list of technologies supported by the device is displayed here and unnecessary ranges are disabled to extend autonomy.
  • CFU Setting. enable / disable conditional forwarding.
  • AT Command Tool. a console utility with AT commands support for changing system settings.
  • Modem Test. testing the compatibility of the access point function with different equipment.
  • Network Selecting. specifying the used mobile communication standard and disabling unnecessary ones to save battery power.
  • NetworkInfo. Displays information about the cellular network. An additional submenu contains the Check Information function. assessing the quality of the operator’s services.
  • GPRS. parameters for connecting to the Internet using the GPRS standard. Indicating the active SIM.
  • HSPA Info. 3G network information.
  • Mobile data service preferred. prioritization of data transfer over voice to optimize file sharing. May cause problems with incoming calls.
  • Fast Dormancy. optimization of energy consumption by reducing the intensity of data exchange between the phone and the base station when the network is idle (when the user does not use the Internet and does not turn it off).
  • RAT Mode (Phone Info). indication of the first priority communication standard, takes precedence over Network Selecting.
  • RF De-sense Test. testing the specified sweep or frequency range to assess the quality of communication.
  • SIM ME Lock. change the regional settings of the GSM chip.

What is the engineering menu?

This is a special program or system partition that developers usually use at the final stage of configuring the software platform of a mobile device. With its help, they make the latest changes to the operation of the device, check the functioning of various sensors and test system components. Also, the hidden functionality of the service menu is used to obtain a large amount of system information, conduct various tests (about 25 pieces) and configure any Android parameters. various sensors, mobile networks, equipment, etc.

Engineering, service or system menus are available on smartphones and tablets powered by the MediaTek processor. On the Qualcomm chipset, it is either truncated or not at all.

Attention! This section is intended for advanced users who are solely responsible for the consequences. Careless actions can harm the file system and disable the smartphone.

Android engineering menu: login and setup for different models of Samsung smartphones

Location

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

How to enter the engineering menu?

The menu is hidden from the user, because careless handling can lead to problems. Called by entering a specific combination on the dial. It is different for each manufacturer. On some devices, the interface is activated after entering a set of numbers and symbols, on others. you need to press the call key, on others you need root rights to call it.

Engineering menu on Android. how to enter, codes and features.

The Android engineering menu (service mode or mode menu) is a low-level software embedded into a mobile device that provides direct access to the parameters of the hardware filling of smartphones and tablets. This is the case for gadgets on the Qualcomm chipset, on Mediateck the interface capabilities are more modest. Snapdragon device owners are out of luck. Their engineering menu is designed for monitoring and testing the device, and not customizing it.

Among them, we want to note the Xiaomi engineering menu, although other manufacturers also have it. It is hidden from users who do not know what it is for, so as not to do things from which a smartphone or tablet will become a brick.

Xiaomi devices have many different settings: customization and firmware with various launchers. In this article, we will talk about the engineering menu in smartphones from this manufacturer, namely, how to turn it on and configure various parameters.

There is no smartphone that, sooner or later, would not have a software failure, the source of which lies in the firmware. To identify and detect such a breakdown, the developers have come up with a special menu. It allows you to test each phone module separately and determine the nature of the breakdown.

Connectivity. Section with parameters and utilities for testing communication modules.

  • Bluetooth. configuring, debugging and testing the interface.
  • CDS Information. information about wireless interfaces.
  • FM Receiver. FM test.
  • Wi-Fi. determining the speed of the selected frequency range.
  • Wi-Fi CTIA. logs of the performed tests of the wireless module.

Engineering menu in Oneplus.

###. opens “phone information” “usage statistics”, “WI-FI information”.
###. FCM Diagnostics. Opens google play services monitor.
#. Software Version. software version.

Description of functions and capabilities

Depending on the platform, some sections and options may be missing, have different names, or be inaccessible.

Access to the function is also provided by special software, the so-called shortcut or shell applications, for example, Mobileuncle Tools.

Engineering menu in Xiaomi

Xiaomi has two options for entering the engineering menu.

To enter the engineering menu in smartphones from Xiaomi, Click on the “Calls” handset and dial:
###

We should open a hidden menu (QC Test) to test your smartphone.

The second option is much simpler than the previous one, the service mode can be called through the Android settings.

    Visit them and tap “My device”.

Tap on the “Kernel version” label 7 times.

How to enter the engineering menu on Android?

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

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

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

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

You should only change the parameters if you know exactly what you are doing. If you do not know, it is better not to touch anything in the engineering menu at all. in order to avoid problems.

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

On Samsung Galaxy, the engineering menu is opened by typing #. In front of you, you will see this:

To use, click on the “Menu” button on your smartphone and select Back.

Codes for entering the engineering menu

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

  • Samsung. ###, ###, ###, #
  • LG. 3845 #
  • Acer. ###
  • MTK. ###, ###
  • HTC. ###, ###, ###

How to Access Secret “Service Menu” for All Samsung TVs

  • Sony. ###, ###, ###
  • Huawei. ###, ###, ###
  • Philips. ###, ###
  • Alcatel, Fly, Texet. ###, ###

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When connected to a monitor through one of these adapters, Samsung DeX loads quickly on the monitor, providing the user with a familiar desktop with resizable windows, drag-and-drop functionality and keyboard shortcuts.

In August 2019, Samsung introduced DeX for PC. It allows users to connect their mobile devices to a compatible Windows PC or Mac to access DeX right from their computer.

With the release of the Note20, DeX wireless technology was introduced. This allows users to use DeX cable-free on Smart TVs with Miracast as long as both devices are connected to the same Wi-Fi network.

Read on for more tips on navigating the DeX interface, but first let’s take a look at the pros and cons of the three official DeX accessories.

Engineering Mode Capabilities

For example, on the Galaxy A5 and S6, the main catalog contains categories:

How to Enter any Samsung TV secret Service Menu with EXPLANATION. TV reset, Screen test, TV mileage

  • Telephony;
  • Connectivity;
  • HW Testing.
  • answering machine;
  • GSM frequencies;
  • connection standards 2G, 3G, LTE;
  • access to the worldwide network and other parameters related to telephony.

Connectivity defines the parameters of wireless connections: Wi-Fi, Bluetooth, radio. Changes made in this section can disrupt the operation of the device or completely disable it.

HW Testing is designed to test hardware components. processor, battery, speaker system, optics, touch panels and the like.

For example, the service menu helps on a Samsung phone to reduce the stress on the battery. You need to go to hidden Android settings and:

  • open Telephony;
  • enter BandMode, where you can specify the scanned GSM frequencies;
  • uncheck the boxes everywhere, except for 900 and 1800, which correspond to Russian standards;
  • confirm action by touching SET.

As a result, the autonomous module will stop looking for formats that are not available in the country, which will significantly increase the battery life.

How to Enter Samsung Service Menu (Engineering Mode)

The engineering menu on Samsung telephones is activated after dialing special combinations. To make them work, sometimes, having indicated the desired cipher on the dial pad of the telephone number, they press the call button.

How to enter the secret engineering menu on Samsung. you need to type one of the combinations:

  • # for newer devices;
  • ###, # or ### for earlier generations.
  • for Samsung J7 and J1, cipher ## is relevant;
  • versions A5, S5 and S6 respond to ### or ###;
  • for Samsung A3 it is better to use ###;
  • if it is S3, then dial ###;
  • S7 Edge owners should try ### or ###.
enter, engineering, menu, samsung

Another way to enter the engineering (hidden) menu on Samsung yourself is to install special utilities Mobileuncle Tools, Mobileuncle MTK Tools 2.4.0, EngineerMode, Shortcut Master and others. They are distributed via Google Play.

Which DeX adapter is better?

Three available Samsung DeX adapters offer different benefits depending on where and how you use the platform.

The compact and compact DeX HDMI adapter makes it easy to connect your phone to a standard HDMI cable on your monitor. Since there are no additional ports for connecting a USB keyboard and mouse, you will have to use Bluetooth peripherals. For longer DeX work sessions, use wireless charging to recharge the battery.

The DeX cable is similar to a standard HDMI adapter, but is 1.4 meters long and plugs directly into your monitor. This is ideal if you plan to use the DeX mostly in one place and can leave the cable connected to the monitor. It is often used in corporate hot desktop scenarios where users walk in, connect their phone to the cable, and get to work.

A full-port DeX multiport adapter provides the ultimate in DeX flexibility. In addition to an HDMI port for connecting an HDMI cable to a monitor, you have a USB 3.0 port for connecting a keyboard or mouse, a Gigabit Ethernet port for wired internet, and a USB-C port for connecting a cable to charge your phone. Like a standard HDMI adapter, the multiport adapter is also compact and easy to carry in your

What is Samsung DeX and what devices does it work on?

Samsung DeX. it is not hardware. it is a software platform that turns your smartphone or tablet into a desktop computer. It works on all of Samsung’s flagship smartphones introduced since 2017, including the Galaxy S8 / S8. Note8, S9 / S9. Note9, S10e / S10 / S10. Note10 / 10.S20 / S20 / S20 Ultra, Note20 / Note20 Ultra, and Galaxy Fold.DeX is also available on Samsung Galaxy Tab S4, Tab S5e, Tab S6, Tab S7 and Rugged Tab Active Pro where it can be used directly on the screen a tablet with a keyboard cover or a connected monitor with an external keyboard and mouse.

The first version of Samsung DeX, released in early 2017, required a docking station (DeX Station or DeX Pad) to operate and connect peripherals. With the launch of the Note9 in August 2018, Samsung introduced the DeX HDMI adapter, cable and multiport adapter, eliminating the need for previous dock accessories.

If you managed to open the service menu of your Samsung phone without any problems, work in it very carefully. Perhaps it makes sense to commit the changes made so that later you can undo them.

Since you can enter the engineering (technical) menu on Samsung using various commands, taking into account the specifics of a particular model, if the proposed schemes turned out to be ineffective, contact the manufacturer’s service center.

Can DeX replace your computer?

Today’s smartphones have enough processing power to handle most workloads, but the limitations of small screens can make it difficult to multitask or make you more productive. Using Samsung DeX with a full-size monitor, keyboard, and mouse removes the need for a laptop or desktop PC for good.

For individuals DeX. a great way to be more flexible. Instead of loading up your laptop to do your work at home, just plug your phone into a monitor and get started right away. You can run up to five applications at the same time and easily complete most tasks without the hassle.

For business owners and IT decision makers, DeX allows you to consolidate IT investments and device management by using your smartphone as the primary computing device, giving your team access to corporate email and applications. instantly accessible wherever they are. Instead of having a separate PC for each employee, you can deploy flexible workstations with a DeX cable, Bluetooth keyboard and mouse, knowing that users can get in and start working in seconds.

Even businesses that rely on legacy Windows apps that don’t have mobile or web versions should consider DeX as an option. You can use a virtual desktop app like VMware, Citrix, or Amazon WorkSpaces in DeX to access the full Windows desktop.

How to enter Samsung Galaxy smartphone in recovery mode? (All models)

Step-by-step procedure for entering your Samsung Galaxy smartphone into “Recovery Mode”

First you need to switch your Galaxy smartphone.

Now, in the off state, press and hold the Home buttons “Volume up” “Power”. until you see the model number of your device on the screen. Now release the power button while holding the other buttons. Please check the below image for reference.

Then you will see a screen similar to the one shown below.

The above screenshot shows “Recovery Mode” of Samsung Galaxy S3 GT-I9300 in CWM rooting state.

If you get the above or similar, your Samsung Galaxy smartphone is in “Recovery Mode”. Use the Volume Up and Volume Down buttons to switch between menus and the Power button to select or confirm.

Common requests that will point to this post

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  • How to put Samsung Galaxy Ace Plus (GT-S7500) into recovery mode
  • How to put Samsung Galaxy Y Pro Duos (GT-B5510, GT-B5512) into recovery mode
  • How to put Samsung Galaxy Nexus (i9250) into recovery mode
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What is a service menu and what is it for

The service menu of a Samsung phone is similar to that of a TV. It opens access to hidden device settings. Here you can test the sensors of the phone, its modules and systems, which is very convenient when buying a device from hand. Thanks to Engineering Mode, the user can customize the control, make it more convenient for himself.

Previously, the entrance to this Android area was only open to developers and repairmen.

How to enter the engineering menu on Samsung

Engineering menu on Samsung. a directory containing various commands for controlling the device, individually debugging its parameters, testing the device.

How to Enter Samsung Service Menu (Engineering Mode)

The engineering menu on Samsung telephones is activated after dialing special combinations. To make them work, sometimes, having indicated the desired cipher on the dial pad of the telephone number, they press the call button.

How to enter the secret engineering menu on Samsung. you need to type one of the combinations:

  • # for newer devices;
  • ###, # or ### for earlier generations.
  • for Samsung J7 and J1, cipher ## is relevant;
  • versions A5, S5 and S6 respond to ### or ###;
  • for Samsung A3 it is better to use ###;
  • if it is S3, then dial ###;
  • S7 Edge owners should try ### or ###.

Another way to enter the engineering (hidden) menu on Samsung yourself is to install special utilities Mobileuncle Tools, Mobileuncle MTK Tools 2.4.0, EngineerMode, Shortcut Master and others. They are distributed via Google Play.

Engineering Mode Capabilities

For example, on the Galaxy A5 and S6, the main catalog contains categories:

  • Telephony;
  • Connectivity;
  • HW Testing.
  • answering machine;
  • GSM frequencies;
  • connection standards 2G, 3G, LTE;
  • access to the worldwide network and other parameters related to telephony.

Connectivity defines the parameters of wireless connections: Wi-Fi, Bluetooth, radio. Changes made in this section can disrupt the operation of the device or completely disable it.

HW Testing is designed to test hardware components. processor, battery, speaker system, optics, touch panels and the like.

For example, the service menu helps on a Samsung phone to reduce the stress on the battery. You need to go to hidden Android settings and:

  • open Telephony;
  • enter BandMode, where you can specify the scanned GSM frequencies;
  • uncheck the boxes everywhere, except for 900 and 1800, which correspond to Russian standards;
  • confirm action by touching SET.

As a result, the autonomous module will stop looking for formats that are not available in the country, which will significantly increase the battery life.

List of Samsung engineering menu commands

To display information on a smartphone, the following codes are used:

  • #. IMEI;
  • #. OS series;
  • # or #. firmware version;
  • #. serial data;
  • #. energy intensity;
  • #. Dump;

The service mode is activated by the combinations # or #. To enter the error log, dial #. If it is necessary to start loopback testing enter #.

To get into the tuning tables, type:

  • #, # or #. display contrast;
  • #. USB;
  • ##. display;
  • number. GPRS / EDGE;
  • 2767380927 #. WAP;
  • 2767927 # or 276773738927 #. rollback of WAP parameters;
  • 2767380667 #. MMS;
  • 335 #. delete all MMS;
  • #. battery calibration;
  • #. data about the battery;
  • ## or #. battery status;
  • #. battery testing;
  • #. debugger.
  • #. speaker and microphone volume.

How to use the engineering menu

The engineering menu on Samsung telephones in the initial version provides full diagnostics and comprehensive settings for smartphones. But later, even during the development period, its capabilities are sharply reduced. As a result, the option only opens access to data on some hardware components and allows you to perform basic testing.

If you managed to open the service menu of your Samsung phone without any problems, work in it very carefully. Perhaps it makes sense to commit the changes made so that later you can undo them.

Since you can enter the engineering (technical) menu on Samsung using various commands, taking into account the specifics of a particular model, if the proposed schemes turned out to be ineffective, contact the manufacturer’s service center.