Secret codes for Android 7. Service codes and key combinations for Samsung Galaxy smartphones. What are they are

Not many know about the existence of the Android OS with advanced apparatus settings - engineering menu . And someone knows, but not vkurse how to go to it and what to do with it.
In this article we will show ways to enter the engineering menu and some of its capabilities.

Log in In the engineering menu, you can simply speaking a special command (but it is necessary to add that this method does not work on all versions of Android and not on all devices)

Team to enter the engineering menu: *#*#3646633#*#*

Also on some versions of Android can work as a team *#15963#* and*#*#4636#*#*

Immediately after entering, the command should disappear and open the engineering menu. But on some devices it will still be necessary to press the "Call" key.

If this method did not occur, you can use alternative!

And it consists of installing a program (which by the way in free access is on Google Play) " Mobileuncle MTK Tools.2.4.0"

This program will open access to the engineering menu (Ie will work like a set of combination*#*#3646633#*#*)

Settings there is a great set! Scrost for experiments is huge! To debug and adjust you can almost everything!

For clarity, we will briefly analyze the adjustment of the volume of the machine:

We go into the program ---\u003e Select the section "Engineer Mode"

Because For us, it is interesting to set the sound level to choose ---\u003e "Audio"

And voila, the menu you are interested in.

MAX Vol - one for the entire subsection, as a rule, is made 150 (it is possible to change 0-160 - it changes if you choose the MEDIA point in the subsection).

If in some submenu, for example, AUDIO - NORMAL - SPH, the overall level is not available to regulation, then enter another subsection, for example, Audio - Normal - Media - there will be the ability to adjust the overall volume level.

Subclauses:
Sph - volume levels when telephone conversation,
MIC - microphone sensitivity levels,
Ring - Call Volume,
Media is a volume when playing music, movies, games.

Call volume levels are set in Audio - Loudspeaker - Ring
Max Vol \u003d 150
Levels: 120 130 145 160 180 200 (more starts wheezing)

Volume Volume Volume in the telephone dynamics in Audio - Normal - Sph
Max Vol \u003d 150
Levels: 100 120 130 135 140 145 150

Talk levels in the microphone in Audio - Normal - MIC
Levels: 100 172 172 172 172 172 172

Multimedia Volume Levels are set in Audio - Loudspeaker - Media

Levels: 110 130 160 190 210 230 250

All the same can be configured for the headphone mode for the mode, by analogy:

Volume Volume Talking Through Robes Sets in Audio - Loudspeaker - Sph
Max vol \u003d 150 (it is one for all partition)
Levels: 80 100 110 120 130 140 150 (more starts wheezing)

Now all volume is adjustable in adequate bands.
If you are not satisfied with the volume levels - you can set your values \u200b\u200b(the greater the value, the greater the volume when adjusting the volume keys, or more microphone sensitivity)

By analogy, you can configure most of the sections! Experiment!

The engineering menu opens access to manual adjustment of the "iron" part of the smartphone. You need to enter a special code or install an application, but there are a number of features that you should pay close attention. If you could not enter the engineering menu from the first time, then did not take into account the features of the device. It is necessary to immediately clarify that any interference with the operation of the device can lead to its inability and loss of warranty.

Hidden system capabilities

In the last stages of the smartphone setting, the developers test the system for errors and check the operation of all device sensors. Especially for this in Android, a special subprogramme is sewn - an engineering menu that provides access to the hidden settings of the Android OS and allows you to reconfigure them yourself. In addition, the menu is deployed device information. The full list of menu features is known only to the platform developers, so your changes should be made with caution.

Secret trails of developers

To enter the engineering menu, type the code * # * # 3646633 # * # *. On some models, you must additionally press the call key. It is worth considering the features of the phones: for different brands there are various combinations of numbers. Android version does not affect the engineering menu functionality.

Enter a special code to enter the engineering menu

If there are no problems, you will fall into the additional menu for fine-tuning smartphone.

We enter the subsection menu

Depending on the system version and processor model, the engineering menu can be incomplete or absent. In the photo above, the menu subsection with the test elements of the smartphone sensors, the USB connection setting, the execution of tests of internal and external memory.

If the first time did not work

Not all devices are included in the engineering menu. Consider a number of common problems and ways to eliminate them.

Android is a complex operating system based on UNIX. If something does not work, you did not take into account all the nuances of the functioning of a subprogramme.

List of special codes

One of the common reasons for blocking the entry into the engineering menu is the wrong special code. The combination of numbers depends not only on the device model, but also on the processor type. For example, most of the MTK chip database devices are equipped with an engineering menu. If we talk about Qualcomm, far from all smartphones on the basis of this platform sewn engineering menu. The list of combinations is shown in the table. If you did not fit the desired, try entering another combination.

Table: Code options for different Android models

Engineering menu do it yourself

If no special code approached, do not be upset. There are many applications with an engineering menu functionality. It is worth noting that the MTK attack in the names eloquently talks about compatibility only with MediaTek processors.

First option - MobileUncle MTK Tools. In this program, in addition to the necessary set of settings, there are several additional features: firmware update, Recovery update, GPS receiving mode and more.

MobileUuncle MTK Tools provides settings

Another program is MTK Engineering Mode. The program completely repeats the regular engineering menu.

MTK Engineering Mode repeats the regular engineering menu

For those who have a device not equipped with an engineering menu, there is another option: the installation of third-party firmware. In assemblies of third-party developers, there is very often a wide range of "Underway" settings.

Where to begin

When you first enter the menu, you can get lost in the rapids of the parameters.

Settings for engineering menu

Settings open huge opportunities for users.

Depending on the hardware platform, some items may not be available or absent.

In this section, you can configure mobile parameters.

Auto Answer. Available on-off automatic response to an incoming call.
Band Mode. Allows you to select the frequency range for the operation of the GSM module. You will see all the technologies and frequencies for them supported by your smartphone model. If you wish, you can remove the checkboxes from the ranges that are not used by your telecom operator. This will significantly save the battery charge. To save the settings, press the SET button.
CFU Setting (CALL FORWARDING SETTINGS). The option enables or disables the conditional forwarding. It must be supported by the operator.
AT Command Tool. Utility for developers supporting AT commands. This menu item will be interesting for programmers and developers. With this menu, you can perform various requests directly to the system without visual add-ons.
Modem Test. Setting the compatibility of the "Access point" option with different types of connected devices.
Network Selecting. Here you can choose mobile standards (GSM, WCDMA, LTE). For additional energy saving, turn off unused.
NetworkInfo. Select one or more options to display information about the status of cellular parameters. After selecting, open the optional menu (three points on the right in the upper corner) and click Check information. This option is convenient to verify the quality of the cellular operator services.
GPRS. Setting the connection to the mobile Internet, select an active SIM card (if there are several of them).
HSPA info. Information about the 3G network in case of support by your mobile operator.
Mobile Data Service Preferred. The Internet will be in priority before voice traffic to increase the data transfer rate. Incoming calls may not pass.
Fast Dormancy. Allows saving the battery power in the third generation networks. The option must be supported by the communication operator.
Rat Mode (Phone Info). Allows you to select a priority communication standard. You must change the parameter CAUTION, it blocks the settings of the Network Selecting item.
RF DE-SENSE TEST. You can select a frequency range and a specific channel for checking the quality of communication.
SIM ME LOCK. This subsection allows you to configure the regional GSM module (MNC, NCC) parameters in manual mode.

Photo Gallery: Mobile Settings

We turn into the main window of the subsection Turn on or turn off the auto answer. Turn on or turn off the conditional forwarding. Customize the modem mode. Display information from the GSM module. Configure mobile Internet. We choose the priority of the connection type. Customize the operation of the 3G mode. We select the type of mobile communication. Check the power of the network. Customize regional communication parameters

Wireless interfaces

The section is designed to test the wireless data transmission modules (Wi-Fi, Bluetooth, FM).

Bluetooth. A wide range of settings and tests for the same module in order to check the receipt and data transfer, launch the debug mode.
CDS information. Information on wireless interface parameters.
FM Receiver. Check the FM device module.
Wi-Fi. Testing the module for transmission and reception of information on the specified frequency channel.
Wi-Fi CTIA. Recording logs of wireless technology tests.

Photo Gallery: Wireless Data Transfer

Select the Wireless Device Modules Select the Bluetooth Mode Mode We find wireless interface information Configure the FM module. Check the WiFi module operation written in the log file to check the WiFi module

Audio is a fine configuration of sound playback parameters.
Camera is a set of photo shooting parameters and videos not included in the camera application.
Driving Current Camera - removes the current strength from the sensor in the camera scheme.
CPU Stress Test - performing tests of all subsystems of the central processor.
Deep IDle Setting - Disabling sleep mode in standby mode.
SLEEP MODE SETTING - Sleeping mode settings.
ChargeBattery - View battery information.
Sensor - Sensor Calibration.
Multi-Touch - check the number of available points for simultaneously pressing the screen.
Location Engineer Mode - checking the GPS module parameters.

Photo Gallery: Testing Equipment

We go to the section checks of electronic components. Customize the volume of spoken speakers. Set the camera power supply. Set the standby mode. Customize the CPU frequency. Customize sleep mode. Watch the battery information. Customize the touch screen. Check the features of the multitouch function. Customize the GPS module.

Setting the volume of speakers

In the subsection, you can configure the overall volume level, the volume of headphone playback and speakerphone.

A change in volume parameters should be treated carefully. All parameters are individual for a specific device model. Incorrect configuration can lead to degradation indicators.

There are a number of common parameters:

MAXVOL - the overall volume level. Range of values \u200b\u200bfrom 0 to 160. The greater the number, the higher the volume.
SPH - Volume when telephone conversation.
MIC - microphone sensitivity.
Ring is the speaker volume with an incoming call.
Media is the volume level when watching movies, listening to music and games.

Very often, users are dissatisfied with the volume of the speaker when talking. To improve audibility, go to the Normal Mode menu and change the SPH parameter to 150. If the phone is quietly called with an incoming call, then you need to increase the Ring parameter value. We advise not to put the value above 200, this may lead to the output of the dynamics. To be better audible, change the MIC parameter from 100 to 172. This will increase the sensitivity of the dynamics.

Root - Panacea for smartphone

On a smartphone without root rights, the functionality of the engineering menu is limited: some items are not displayed, the changes made are not saved. For any intervention in the work of the smartphone, open access to the system is required. Do not forget that getting root access can harm your gadget, the warranty on the device is canceled. We strongly recommend making backup of important information on the memory card and synchronize with Google account and remove it to avoid data loss. To unlock the full access to the system, you can use one of the existing methods.

Installing the application directly to the device (Kingroot)

Suspector access can be opened with a smartphone using special programs. Consider the sequence of operations on the example of the Kingroot program:

After that, you can safely change the parameters in the engineering menu, all changes will be saved. In the case of a negative result, we turn to the following method.

Obtaining superuser rights through PC (Kingo root)

This method is distinguished by a little more preparatory activities:

The engineering menu is used to configure the device and test the work of the Iron Filling. This is a sewn system subprogramme, which is an indispensable tool for both advanced users and newcomers in the world of mobile devices. However, it should be noted that the manipulation with the engineering menu can lead the gadget into a non-working condition.

Manufacturers of smartphones on Android for testing devices are introduced and use the engineering menu. It contains all kinds of tests and settings of the device inaccessible to ordinary users. However, today, knowing the USSD command or downloading the application from PlayMarket, anyone can enter the engineering menu.

Why need a hidden engineering menu in android

Engineering Mode is essentially a hidden application that uses developers for testing and installing optimal mobile phone or tablet parameters. Specialists check the operation of the sensors and, if necessary, make adjustments to the functioning of system components.

Working with the Android technical menu, be careful - the change in the part of the functions leads to failures in the device.

How to enter the menu

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

Table: Combinations for running 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 MediaTek processor (most Chinese devices)	##54298##
	##3646633##
Acer.	##2237332846633##

Video: How to work in Engineer Mode

If the code does not work, and the standard way to start the service menu is not detected, use third-party applications - you can download them on PlayMarket. Recommended programs - "Running the MTK engineering menu", MobileUncle Tools, Shortcut Master.

The manufacturers menu does not work on some models of devices with Android 4.2 JellyBean (X.X.1, X.X.2), as well as on Android 5.1 Lollipop. Also invalid menu when the Cyanogen MOD firmware is installed. Android 4.4.2 when rebooting, changes made in the application are reset.

"Running the MTK engineering menu"

The application allows you to open and configure the engineering menu without a set of digital commands. It works correctly on MediaTek processors (MT6577, MT6589, etc.) and Android 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.

MobileUncle Tools program

The application functionality 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 IMEI number and improve GPS. Root-right is required for stable operation.

Utility Shortcut Master

The Shortcut Master program is designed to work with labels and system applications: creating, searching, deleting. The direct function of entering the engineering menu in it is not. But with it, you can view a list of secret commands operating on your device. And by clicking on the name of the command, you will see the drop-down menu in which there will be a "execute" item. Convenient, and does not require extra action.

Root-right to access the engineering menu

To get to the service menu on some Android versions, the user must have a superuser (root). You can get right using specialized applications: Farmaroot, Universalandroot, Romaster SU and others. To get root-access to the device with Farmaroot:

Install and run to the program. Link to Google Play: https://play.google.com/store/apps/details?id\u003dcom.farmaapps.FileManager&hl\u003dru.
If the application supports the root right to install your device, then on the screen you will see a list of possible actions, among them - "Get Root". Select this item.
Select one of the pre-installed ROOT methods.
The program will start the installation.
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 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 possibility of adjusting the parameters may vary depending on the model of the tablet or smartphone. In the menu, the Users most often adjust the sound, change the camera settings and use the recovery mode. Parameters for adjustment and procedure are shown below. Be careful - the menu items name may vary in various models of devices! You act at your own risk.

Audio: Strengthen the volume level

If your phone calls insufficiently loudly, 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 \u200b\u200b- set the numbers ascending, from 120 to 200. Increase the value in the Max paragraph. Vol - Maximum 200. Press the SET button to save the settings.

Audio: increase the volume of telephone conversation

To enhance the tone of the speaker for conversations, in the AUDIO service menu section, select Normal Mode and open the Sph. Set values \u200b\u200bfor signal levels (LEVEL 1-6) from 100 to 150, and MAX number. Vol. - Up to 160.

To enhance the sensitivity of the microphone, go to the AUDIO - NORMAL MODE - MIC menu. For each level, assign the same microphone sensitivity values, for example, 200. Press the SET button, restart and check whether the interlocutor hear you better.

Video: Adjust the sound parameters in the engineering menu

Battery: Disable unused frequency

Smartphones quickly spend the battery life of applications, maintain cellular communication and network connections. With the help of the engineering menu, you can increase the battery life.

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

In Engineer Mode, open the Band Mode item. Disconnect unused frequencies by removing the check mark from the respective items - PCS1900 and GSM850. If the device supports two SIM cards, open the alternate SIM1 and SIM2 items and follow these steps in each. Press the SET button to save the settings.

If the smartphone and the SIM card operate 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 the scan of disconnected networks by returning to the same menu and installing the check mark.

Camera: Photo and video settings

By default, Android devices store snapshots in JPEG format. Meanwhile, photographers prefer to remove and process material in RAW to get more editing features. The technical menu allows you to select the desired image format.

In the Find Camera menu and select Capture Type. Install the photo format - RAW and press SET. Also in the Camera menu, you can enlarge the size of the pictures, set the ISO value, turn on the removal in the HDR for a higher photo detail, set the frame rate for the video. After changing each parameter, do not forget to press SET to save the settings.

Recovery mode

Recovery Mode - Analog 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;
deleting personal data from the system.

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

If the settings are not preserved

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

To enter the settings after changing the parameters, make the tap on the Set button at the bottom of the screen. If the parameters are reset after the device is restarted, try entering the technical menus not through the application, but using a digital command.

Services service devices for Android

In addition to the technical menu, manage the functions of smartphones on Android allow secret USSD codes - combinations of numbers and symbols, which the user performs the action. Secret codes for different devices are shown in the table.

Table: List of Secret Commands for Android

Manufacturer	Digital command	Value
Codes for most manufacturers	##7780##	Rollback of settings and uninstalling user applications
	27673855#	Changing the firmware, total rollback settings.
	##232339## ##526##	Check wireless connections
	##34971539##	Camera Detailed Information
	##232338##	View Wi-Fi address
	##273283255663282##*	Activation of the backup of the media on the phone
	##1472365##	Express Test GPS
	##0##*	Screen check
	##2663##	View Touchscreen Information
	##2664##	Testing touchscreen
	##4636##	General Data Devices and Batteries
	##0673## ##0289##	Audiotestes
	##7262626##	Check receiving GSM.
	##0842##	Test Vibrational and Display Brightness
	##3264##	RAM information
	##232331##	Bluetooth communication Testing
	##8255##	Check Google Talk.
	##232337##	Bluetooth Address Information
	##1234##	Data firmware apparatus
	##44336##	Date of device assembly
	*#06#	Information about the issue IMEI
	##197328640##	Test service activity
	##1111##	FREE-TO-AIR software version
	##2222##	Iron room for free-to-air
	##0588##	Checking the approximation sensor
Sony (on the devices there are uniform commands)	05*#	Removing the lock from the PUK code
Motorola.	*#06#	IMEI.
	##786##	Rollback of settings to the initial
	##1234## ##7873778##	Opening Applications with Root Rights
	##2432546##	Check availability
	##2486##	Login to the service menu
HTC	##4636##	Service menu
	##3282#	System Application EPST.
	##8255##	G-Talk Monitor
	##33284#	Network status
	##3424##	Test functionality
	##3424#	Diagnostics of the device
	##7738#	Diagnostics protocol
	##8626337#	Voice Coder.
Samsung (efficient shared codes)	## 778 (+ call)	Activation EPST Menu
LG (working with codes replaces the technical menu)	3845#*855#	International Devices
	3845#*400#	Chinese devices
	5689#*990#	Sprint
	## 228378 (+ call)	Verizon Wireless
	3845#*851#	T-Mobile
	3845#*850#	AT & T.

If for some reason the service code did not work, do not be discouraged - install and run the Secret Codes application (Link to Google Play: https://play.google.com/store/apps/details?id\u003dfr.simon.marquis. Secretcodes & HL \u003d RU). The program will analyze the combination in the device and offer you a list. You can activate the combination directly in the application with one click on the name.

Initially, the secret codes of mobile devices were intended for employees of the relevant service centers.

But in our digital world it is impossible to save any information!

Therefore, we collected the most useful codes for Android devices:

Reset.

Open the phone and enter * # * # 7780 # * # *. Another way is to open the settings menu and select "Reset Settings".

Reinstall the firmware.

Reset all settings with reinstalling the firmware can be using the * 2767 * 3855 # code. You can flash the phone via connection to a computer and installing a new firmware.

Test mode.

This mode is used by testers and programmers. Enter * # * # * # * # 197328640, then go to the settings - a new test menu will appear there.

Camera information.

If you want to know what the camera is installed on your phone, type * # * # 34971539 # *.

Backup media files.

Oddly enough, you can backup copies of media files using a special code. Just type * # * 663 282 * # * # *.

Google Talk Monitoring Service.

Yes, Google spies you. And if you type * # * # 8255 # * # *, the monitoring service will open, which will tell you which information is known to Google.

Battery charge.

The battery charge is displayed in the upper right corner of the screen, but if you dial * # 0228 #, you can learn more.

Encryption information.

What encryption uses your operator to protect your data? The answer to this question you will learn by typing * # 32489 #.

Data use statistics.

It is interesting for us to find out what the amount of data we use, because it often seems that money is not clear where. Check your operator: Dial * # 3282 * 727 336 * #.

3D features.

It does not work on all devices, but you can check the 3D settings by typing 3845 # * 920 #. So you will learn whether your device is supported by the display of 3D modules.

Check WLAN network.

Check the Wireless LAN settings are very simple: dial 526 # * # * # * # * # *.

GPS check.

To check how true your GPS settings are (because sometimes the global positioning system gives failure), enter * # * # 1575 # * # *.

Bluetooth check.

Do you have Bluetooth-connections gaps? Or has the connection become too slow? Check the Bluetooth settings and accessories by typing * # * # 232331 # *.

Check FTA SW (software).

If you want to know which software is used by your device, type * # * # 1111 # * # *.

Check FTA HW (components).

And if you are interested, on what gland your software will plow, type * # * # 2222 # * # *.

Diagnostic settings.

You can see the diagnostic test settings by typing * # 9090 #.

Here is the complete list of Android codes currently operating:

* # * # 4636 # * # * Information about the phone, battery and use statistics.

* # * # 7780 # * # * Resetting settings. Delete only applications.

* 2767 * 3855 # Full reset settings, reinstall the firmware.

* # * # 34971539 # * # * Full information about the chamber.

* # 273283 * 255 * 663282 * # * Quick media files.

* # * # * # * Mode of testing of service activity.

# 526 # * # * Wireless testing.

# * # 232338 # * # * Wi-Fi MAC address.

* # * # 1472365 # * # * Quick test GPS.

* # * # 1575 # * # * various GPS tests.

* # * # 0283 # * # * Test Loopback.

* # * # * # * Test LCD display.

* # * # * # * # 0289 # * # * audio test.

In view of the fact that your Android device contains a large amount of information about the system and hardware software, the average user may not be easy to access it. But if you know the Android secret codes, then you can reset to factory settings, find out the hidden chamber information, quickly back up the valuable data and much more.

The code entry procedure is very simple - you will only need to open a dialer and enter the appropriate combination of characters. Keep in mind that some codes are calculated for certain communication operators and may not work on all mobile devices. So if your phone does not support any code - do not be discouraged, but simply try entering another.

Content Articles

General Secret Codes for Android

Note that basically these codes are universal, and should work on Android devices, regardless of the manufacturer. Also add that there are restrictions on operators in relation to certain codes, so there is no big guarantee that these codes will be workers.We present a detailed list of codes for Android devices:

* # 06 # - IMEI (deciphered as the "International Mobile Equipment ID") - is needed if your device was stolen, or you want to block access to your network.

* # * # 7594 # * # * - Disable your device with the "On" button. No menu display.

* # * # 4636 # * # * - Displays information about the phone, battery, use and Wi-Fi.

# * # 7780 # * # * - Reset to factory settings (delete information about applications and applications yourself; Firmware remains unchanged).

* 2767 * 3855 # - Full cleaning of the phone from any information, including firmware.

* # 273283 * # * 663282 * # * # * - Creating a backup of all your photos and videos.

# * # 1472365 # * # * - GPS performance check.

* # * # 1234 # * # * - Displays information about the firmware and PDA.

* # * # 232338 # * # * - Display WiFi MAC address.

* # * # 8255 # * # * - Access to the GTalk Service monitor.

* # * # 36245 # * # * - Access to debug information about email.

* # * # 225 # * - Event calendar.

* # * # 426 # * # * - debug information for Google Play Service.

* # * # 759 # * # * - access to the installation of Google Partner.

Android Secret Codes for Samsung

Note that many of the above codes will also work on Samsung devices, and the following codes were tested exclusively on Samsung devices, and we guarantee that they would work on them (taking into account the restrictions of mobile operators).* # 44971539 # * # * - Displays all information about the chamber.

* # * # * - - Turn on the test mode for services.

* # * # 232339 # * # * - Test wireless Internet access.

* # * # 1575 # * # * - Your GPS test (GPS general android test alternative).

* # * # * - Test your LCD display.

* # * # 4986 * 2650468 # * # * - Displays important information about the phone (PDA, firmware, hardware software, etc.).

## 778 (followed by clicking on the call button) - Login to the ESPT menu.

Android Secret Codes for HTC

* # * # 3424 # * # * - Test software function HTC.

* # * - information menu HTC.

* # * # 8255 # * # * - Launch of the GTalk Service monitor.

## 3424 # - diagnostic mode.

## 3282 # - Entry to the ESPT menu.

## 8626337 # - Vocoder.

## 33284 # - Access to the Field Trial menu.

## 786 # - Support for return logistics.

## 7738 # - revision protocol.

In our opinion, there is a high probability that you never have to use such codes, but if you need them - now you know where to look for them.Are there any other Android secret codes that you found yourself and use them regularly? Tell us about it in the comments.