Samsung secret service codes. Service codes for Samsung phones. How to enter the engineering menu on Samsung

Posted 12/20/2015

Because your Android device contains a lot of system and hardware information, it can be difficult for the average user to access. But if you know Android secret codes, then you can perform a factory reset, find out hidden camera information, quickly backup valuable data, and much more.

The procedure for entering the code is very simple - you only need to open the dialer and enter the appropriate combination of characters. Please note that some codes are specific to specific carriers and may not work on all mobile devices. So if your phone does not support a certain code, don’t be upset, just try entering another one.

Contents of the article

Common secret codes for Android

Note that these codes are basically universal and should work on Android devices, regardless of the manufacturer. We also add that there are restrictions from operators regarding certain codes, so there is no great guarantee that these codes will work.We present a detailed list of codes for Android devices:

*#06# – IMEI (stands for “International Mobile Equipment Identifier”) – necessary in case your device is stolen or you want to block a thief’s access to your network.

*#*#7594#*#* – turn off your device with the “On” button no menu display.

*#*#4636#*#* – Display information about phone, battery, usage and Wi-Fi.

*#*#7780#*#* – Reset to factory settings (deleting information about applications and the applications themselves; the firmware remains unchanged).

*2767*3855# – Completely clearing the phone of any information, including firmware.

*#*#273283*255*663282*#*#* – Create a backup copy of all your photos and videos.

*#*#1472365#*#* – Checking GPS functionality.

*#*#1234#*#* – Displays information about firmware and PDA.

*#*#232338#*#* – Displays WiFi Mac address.

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

*#*#36245#*#* – Access to debugging information about Email.

*#*#225#*#* – Events calendar.

*#*#426#*#* – Debugging information for Google Play Service.

*#*#759#*#* – Access to Google Partner installation.

Android Secret Codes for Samsung

Please note that many of the above codes will also work on Samsung devices, and the below codes have been tested exclusively on Samsung devices and we guarantee that they will work on them (subject to mobile operator restrictions).*#*#34971539#*#* – Displays all information about the camera.

*#*#197328640#*#* – Enable test mode for services.

*#*#232339#*#* – Test of wireless Internet access.

*#*#1575#*#* – Test your GPS (an alternative to the general Android GPS test).

*#*#0*#*#* – Test your LCD display.

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

##778 (followed by pressing the call button) – Entering the ESPT menu.

Android secret codes for HTC

*#*#3424#*#* – HTC software function test.

*#*# – HTC Information Menu.

*#*#8255#*#* – Launch the GTalk Service monitor.

##3424# – Diagnostic mode.

##3282# – Enter the ESPT menu.

##8626337# – VOCODER.

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

##786# – Reverse logistics support.

##7738# – Protocol revision.

In our opinion, there is a good chance that you will never need to use these codes, but if you do need them, now you know where to look for them.Are there any other Android secret codes that you have found on your own and use regularly? Tell us about it in the comments.

What is the difference between an original device and a fake?

Quality of components

Original smartphones and tablets are made from the highest quality components. Samsung installs the best components at the time of their release on its flagship devices: displays, processors, cameras, memory modules and other parts. Most of them are the company's own developments. Thanks to this, Samsung devices receive many awards and high customer ratings every year.

Counterfeits are made from outdated and cheap parts. As a result, replicas of flagship devices perform worse than original budget Samsung devices.

Software quality and safety

Samsung carefully tests the software for its devices: first with its own testing department, and then with the help of Google, the creator of Android. Thanks to this, smartphones and tablets work quickly, and you can safely use mobile banking, add cards to payment services, and store personal photos. Samsung continues to take care of software updates on its devices even after they are released: it releases new firmware and security updates.

Fraudsters do not worry about the quality of the software - as long as the device turns on. No one is stopping them from installing spyware or phishing software on the fake, which will steal photos, contacts, bank card details, passwords and other data. Counterfeits do not pass any certification. No one updates them or monitors the security of the software.

Branded services and functionality

Original devices have branded services, many of which have no analogues. For example, Samsung Pay, which allows you to link a bank card to your smartphone and pay for purchases through almost any terminal.

Not a single branded service will work on fakes.

Availability of guarantee

All original Samsung devices have a guarantee: manufacturing defects will be corrected free of charge.

There is no guarantee for a fake: it will not be replaced or repaired, even if it breaks the next day after purchase.

Where do they sell fakes?

Mostly, fakes are sold secondhand and on free classifieds websites.

Selling by hand

Near a metro station, a train station, or a large store, a person approaches you and offers to buy a smartphone or tablet at a clearly reduced price, explaining the discount by an urgent need for money. Usually there is even a receipt and a warranty card. The seller is in a hurry, constantly talks to you, does not allow you to concentrate and examine the device properly. He can tell you that all his money and documents were stolen, his children are waiting for him, and he is late for his plane. In general, he makes every effort to make you feel needy or awkward and give you money faster.

Selling on free classifieds sites

You find an advertisement on the website with a very low price. The price is often explained by the fact that the device was given as a gift, but you already have a smartphone or tablet. Over the phone they can say that there is already a buyer or they come up with another legend that will encourage a purchase. Questions are answered in general phrases or evasively. They are found near the metro, shopping or business centers, and almost never give the addresses of residential buildings. When meeting, they are in a hurry. After the sale, the number is disconnected or blacklisted.

The photo below shows a typical scam ad.

1. The average price of such a smartphone at the time of viewing this ad is 45,000 rubles. Thanks to such a low price, the ad received almost 400 views in a few hours.

2. You can already see from the photo that this is a fake - there are no such inscriptions on the original smartphone.

3. Seemingly logical motive. You immediately get the feeling that you have won the lottery and you need to take it as soon as possible.

Another ad, almost a carbon copy. And there are hundreds of them.

Sales in stores

Of course, counterfeits are sold in both regular and online stores.

The photo below shows one of these online stores.

At the time of writing this article, the Galaxy Note 9 had not even been announced, and scammers were already selling it.

How to recognize and not buy a fake

Counterfeits are made in different Chinese and Taiwanese factories, so they are all different. There are no guaranteed features that can be used to visually distinguish a fake from an original device: some fakes may differ in body elements, others in the display, and others in the way the inscriptions are applied. The main difference is in the filling, which is difficult for an unprepared person to appreciate. You need to know well how the original device works: understand the versions and manufacturers of processors, screens, shells, benchmarks, etc.

Therefore, the only way to distinguish a fake from an original is a visual inspection of the device by a competent specialist. For example, this could be an engineer at a company service center.

There are comments where users demand some kind of service or protection that is guaranteed not to be bypassed. It is impossible to make such protection: at the moment there are no such technologies. I would also like to remind you that everything is successfully counterfeited, no matter what the protection: money, documents, medicines, cars, spare parts, jewelry, smartphones, tablets, headphones, clothes, shoes, watches, software. Even the products are counterfeited.

However, despite all the difficulties with counterfeits, there are some tips that can help you when buying.

Pay attention to the quality of translation of menu items

On original devices, the translation is done with high quality, without errors, inscriptions are only in English and Russian.

On counterfeit devices, menu items may use Chinese characters, the translation itself may be conspicuous, and phrases may appear illogical. For example, on the lock screen there may be an inscription: “Drag to unlock.”

If you've forgotten your Samsung password, don't worry; you can recover the passcode using your gmail account, or like the last ditch attempt, using a factory reset. Perhaps this article will help you: What if I forgot my password?

Use a hard reset as the last method, which will only be performed if you are 100% sure that you do not have a Gmail account associated with your phone.

There are several variations of the factory password; each smartphone has its own. If you know any more, write it in the comments.

The default factory password is 00000000 (8 zeros). Also 1234, 12345, 0000, 00000. If not one is suitable, you can reset it. Attention, all data will be lost!(Except for those on the SD card, if you remove it). To do this, you need to remove the SIM card and then enter: *2767*8451# (on some models *2767*3855#) the password will most likely be reset to 8 zeros.

How to recover a forgotten password via Gmail?

This method will only work if you have connected your Gmail account to your Samsung phone.

1) Read the pop-up warning. Entering the wrong password five times on the unlock screen will trigger a pop-up warning. The system will be prompted for 30 seconds. Click OK.

2) State what you forgot. Direct your gaze to the options displayed at the bottom of the screen. Click “Forgot Pattern”, “Forgot PIN” or “Forgot Password”. Depending on which unlocking method you used to secure your Samsung phone.

3) Log in to your Gmail account. You need to send your Gmail ID information associated with your Samsung phone. Enter your Gmail username and password in the text field that appears and click the Login button.

4) Reset your password. After submitting the correct Gmail username and password, you will be prompted to reset your Samsung password. Create a new password and click OK or Continue. Re-enter your new Samsung password and click OK. This should allow you to access your Samsung phone or tablet again.

How to Hard Reset Samsung Password?

To remove Samsung password, first turn off your phone. Just press and hold the Power button for a few seconds. Before performing a Factory Reset, remember that this will cause you to lose all data on your Samsung phone. You see, Factory Reset is basically a software recovery and will return your gadget back to its original system state by deleting all the files stored on it.

Some good news: Factory Reset will not delete data stored on your SIM card or Micro SD card. This method does not actually recover your password, but it deletes all user data, including any set passwords or security patterns, on the device storage so that you can access your Samsung password again.

The volume buttons are on the left side of the phone, the power button is on the right, and the home button is at the very center of the bottom of the screen.

1) Turn off your phone. The normal way of pressing the power button will not work. Instead, hold and press these buttons at the same time: Volume Up or Down + Power + Home.

2) Whether you press Volume Up or Volume Down depends on the Samsung tab you are using. Try trial and error with both buttons.

3) Select to perform a factory reset. In the previous step, a welcome screen will appear in which you can select the option “Wipe data/Factory reset” using Volume keys. Confirm your choice using the Power button.

4) The option can also be presented as "Yes, delete all user data". Simply use the Volume keys to select an option and the Power button to confirm it.

Give the system a minute or two to complete the process.

Select "Reboot system now". It will appear on your screen. Confirm system reboot using the Power button. Wait a couple of minutes for the process to complete, after which you can use the password again. If none of the methods listed above helped you, see: How to restore to factory settings?

How to Unlock Samsung Password Using Find My Mobile?

If you are unable to unlock your Samsung password, first of all, don't panic. Tons of people have been in the same position before, and many more will follow in the future. That's why Samsung (and Android itself) have made it extremely easy to reset your password and regain access to your phone.

1) To unlock your phone using the Samsung Find My Mobile platform, go to the official website by clicking .

2) Login using the Samsung account you created when you first purchased your smartphone. Of course, this requires you to sign in to your Samsung account and not skip it.

3) On the toolbar, click the button Unlock device."

4) Make sure your phone is turned on and connected to the Internet via Wi-Fi or an active data connection.

5) Click " OK" for a popup that is displayed on a website.

Your phone will now communicate with Find My Mobile and should unlock remotely within a few minutes. Now you'll want to log in settings device and create a new password.

If you encounter any problems during the process, be sure to let us know in the comment section below and we will do our best to help you.

Service (aka engineering, aka secret) codes are used for quick access to various functions, often even hidden ones. There are universal codes for Android, and there are those that are only available for certain device models.

Not long ago I published an article in which I told... To do this, you could use special software or use one of the secret codes. Now I will talk about the most popular of them, thanks to which you can make many system settings.

Popular secret codes for Android smartphones

Why are these codes called “secret”? They are simply not needed by most ordinary users; they are not published in the instructions for smartphones. First of all, “secret codes” are intended for engineers and developers to conduct various tests.

To use any of the service codes, you need to enter it in the dialer. On tablets, you will have to download a third-party application to make calls - enter the query “Dialer” in the Google Play search and download the “dialer” you like.

*#06# - information about the IMEI of the smartphone
*#*#4636#*#* - information about Wi-Fi, battery and usage statistics
*#*#3646633#*#* or *#*#83781#*#* - enter the engineering menu on smartphones with an MTK processor (you can use it)
*#*#8255#*#* - testing the Google Talk service
*#*#7594#*#* - if you enter this combination, after that, when you press the power button, the smartphone will immediately turn off, without offering a menu
*#*#44336#*#* - information about PDA, CSC, build time and other data about the smartphone
*#*#232338#*#* - Wi-Fi MAC address
*#*#7780#*#* - instant reset to factory settings (Hard Reset). Only removes applications
*2767*3855# - instant reset to factory settings, but unlike the previous method, Android is completely reinstalled
*#*#1234#*#* or *#12580*369# - information about the device firmware
*#*#1111#*#* - information about the FTA software version
*#*#2222#*#* - information about the FTA hardware version
*#*#0283#*#* - Loopback test
*#*#0*#*#* - screen test
*#0*# - testing various components: screen, camera, speakers, vibration, microphone and others
*#*#0673#*#* or *#*#0289#*#* - audio test
*#*#0842#*#* - vibration and backlight test
*#*#232339#*#* or *#*#526#*#* - wireless network test
*#*#1472365#*#* - GPS test
*#*#1575#*#* - detailed GPS test
*#*#232331#*#* - Bluetooth test
*#*#232337#*#* - show Bluetooth address
*#*#2663#*#* - touch screen version
*#*#2664#*#* - touch screen testing
*#*#0588#*#* - motion sensor testing
*#*#7262626#*#* - GSM signal test
*#197328640# - switch to service mode
*#*#3264#*#* - RAM memory version
*#*#8351#*#* - activation of voice dialing registration mode
*#*#8350#*#* - disable voice dialing registration mode
#*5376# - delete all SMS
*#2222# - Android firmware version
#*2562#, #*3851#, #*3876# - reboot your smartphone, tablet
*#34971539# - complete information about cameras and updating their firmware
*#*#273283*255*663282*#*#* - quickly create a backup copy of media files
*#*#4636#*#* - secret menu for Motorola devices
**05***# - unlock PUK on Sony
3845#*855# - service menu on LG G3
*#0011# - service menu on Samsung Galaxy S4
##778 (+call button) - displays the EPST menu (for Samsung)
##3424# - diagnostic mode (for HTC)
##3282# - EPST (for HTC)
##8626337# - VOCODER (for HTC)
##33284# - technical data of network status (for HTC)
##7738# - protocol revision (for HTC)

In principle, these are the most basic and universal service (secret) codes for tablets and smartphones on Android, but all manufacturers add support for their own, so if you are interested in codes for a specific device, download the application. It will be discussed below.

Android service codes in the Secret Codes application

The Secret Codes application will scan the system for engineering codes and display the result in the form of a list. You just need to click on the code of interest and you will go to the desired option.

Unfortunately, this method has a drawback: on some devices the application does not find a single service code, and on some it does not find everything. But on the devices I tested, everything was fine, and the reviews on Google Play were almost all positive.

The other day I was dealing with a phone whose touch panel did not work, or rather the lower left corner did not work correctly in some applications.

I go to the menu - everything works fine. I start writing SMS in a standard keyboard - the lower left area with symbols does not work. And then I remembered that Samsung has many service codes on smartphones, including self-testing ones. I immediately decided to write a post about service codes, which I often use when diagnosing Samsung phones.

ATTENTION!!! Before starting software updates, rooting, resetting settings and other manipulations with your own or, God forbid, someone else’s device HIGHLY RECOMMEND read this one. In short, you have been warned and don’t say later that this is the first time you’ve heard this.

We test it ourselves - Samsung GT-I9300 Galaxy S3

*#7353# - This is the first service code that I want to consider in this post. By typing it on the keyboard on the phone, we will go into the so-called testing mode, which allows you to test the basic functions of the smartphone. Let's go over all the points in more detail:

Rice. 1: *#7353# - Menu for testing basic functions.

Melody- Checking the speaker - plays sound.

Vibration- Checking the vibration motor - the device vibrates periodically.

Speaker- Polyphonic speaker test - plays sound.

Dimming- Screen dimming test - the screen dims.

Camera- Checking the main camera - switching to photo mode with the main camera.

VT Camera- Checking the front camera - switches to photo mode with the front camera.

Bluetooth- Bluetooth turns on and searches for devices.

TSP Dot Mode- Checking the touch panel “spot mode”. A cross appears on the screen where you touch the touchpad.

Rice. 2: Barely visible crosses where touched.

TSP Grid Mode- Testing the touch panel “grid mode”. The image on the display is divided into many rectangular areas. If the area reacts to touch, its color changes. To successfully complete the test, each area must respond.

Rice. 3: Grid mode.

Accelerometer Sensor- Checking the operation of the accelerometer. Allows you to change the orientation of the image on the display depending on how the user holds the device. In addition, many functions can be controlled. For example, changing music tracks by simply shaking the case, receiving calls, etc. Testing the auto-rotate screen function. The image flips depending on the rotation of the body. The arrow always points up.

Rice. 4: Vertical arrangement.

Rice. 5: Horizontal arrangement.

Proximity Sensor- Checking the proximity sensor. Applicable only to phones with touch screens. It tracks the distance from the device to the user’s face, and when it comes close, it automatically blocks the screen sensor. Thus, you can safely put the device to your ear during a conversation, without fear that the phone will perceive touching the screen as a command. Placed on the front panel, usually above the screen. If the phone is not attached to the ear, then the display will read “Release”, otherwise “Working”. You can easily check the functionality of the proximity sensor by covering it with your finger or pen.

Rice. 6: Release.

Rice. 7:Working.

Light Sensor- Checking the light sensor. A sensor that monitors the level of external light. Allows you to automatically change the screen brightness depending on external conditions - for example, for working in twilight, the minimum brightness may be quite sufficient, while in the bright sun the maximum is necessary. Thus, you can achieve not only the most comfortable level of brightness, but also significant savings in battery power - after all, without high brightness, which is not always needed, the screen consumes more energy. Placed on the front panel, usually above the screen. In good lighting, the screen displays 1, in poor lighting, 0. To quickly check, place the phone under the lamp (1 on the display), cover the light sensor with your hand, 0 should appear on the screen.

Rice. 8:Good lighting.

Rice. 9: Bad light.

*#0*# - This is the second service code, which we will also consider on the Samsung GT-I9300 Galaxy S3 smartphone. Has the following points:

Rice. 100*# - Test menu.

Red Green Blue- Testing the display for displaying RGB model colors The image changes its color (Red - red, Green - green, Blue - blue).

Receiver- Checking the speaker. The speaker plays sound and the picture turns white.

Vibration- Testing the vibration motor. The device begins to vibrate.

Dimming- Screen dimming testing. The screen goes dark.

Mega cam- Checking the main camera. Switch to photo mode with the main camera.

Touch- Checking the touch panel. The image on the display is divided into many rectangular areas. If the area reacts to touch, its color changes. To pass the test, each area must respond.

Rice. eleven: Checking the touch panel.

Sleep- Testing the sleep function - The device enters sleep mode.

Speaker- Checking the polyphonic speaker. Starts playing sound.

Sub key- Testing sub buttons (menu, central, return). After clicking on one of the sub buttons, the image changes color.

Front cam- Checking the anterior chamber. Switch to photo mode with the front camera.

LED- LED indicator testing. The indicator lights up red (RED), after touching the touch panel it changes color to green (GREEN), after another touch it lights up blue (BLUE).

LOW FREQUENCY- Checking the earpiece speaker for reproduction of low-frequency sounds, there are three frequencies to choose from (100 Hz, 200 Hz and 300 Hz).

Rice. 12:LOW FREQUENCY.

Sensor Menu- To test the main sensors:

Rice. 13: Sensor testing.

1. Accelerometer sensor(accelerometer). x-angle, y-angle, z-angle – values of deviation angles from the axes of a three-dimensional coordinate system (0 - 90 degrees), ACC Raw Data – their values, recoded into the decimal system (0 - 1023). IMAGE TEST - testing the screen auto-rotate function. The image flips depending on the rotation of the body.

2. Proximity sensor(proximity sensor). At a distance of the device from the user's ear approximately equal to 3 cm. the proximity sensor is triggered. PROXIMITY: 0.0 – the sensor did not work. PROXIMITY: 1.0 – the sensor has triggered. The ADC parameter has values from 0 to 255, 0 – the object is at the farthest distance from the sensor, 255 – the closest. When ADC = 15 the sensor is triggered.

3.Barometer sensor(barometer). A barometer measures atmospheric pressure. BAROMETER – atmospheric pressure value, hPa - hectopascal (102 Pa). ALTITUDE – altitude above sea level. Barometer Selftest – barometer self-test mode, if the value is PASS, then the test is passed.

4.Lights sensor(light sensor). Light sensor – illumination value (lux). At night on a full moon, the illumination is 0.2 lux, sunrise in clear weather is 1000 lux. There are 4 levels of lighting: level 1, level 2, level 3 and level 4. Level 1 corresponds to poor lighting, level 4 to good lighting. levels 2 and 3 are intermediate between levels 1 and 4.

5. Gyroscope sensor(gyroscope). The gyroscope tracks the speed and direction of the mobile phone's movements in space. Somewhat similar to an accelerometer, it provides enhanced control capabilities that can be useful, for example, in games. Y, P, R – rotation angles around the Z, Y, X axes, respectively. Gyro Selftest - self-test mode, if the value is PASS, then the test is passed. Graph – graphical testing mode.

6.Magnetic sensor(magnetic sensor). AZIMUTH, PITCH, ROLL – values of angular deviations. Selftest - self-test mode, if the value is PASS, then the test is passed. The black circle with an arrow is a compass, the arrow points to the North Pole of the Earth.

*#0228# - Battery data.

Rice. 14:Battery condition.

Voltage– voltage value at the battery contacts. After setting the device to charge, the Voltage value begins to increase, so this code can be used to check the charging function. Temperature – battery temperature value.

*#0283# - Microphone testing.

Rice. 15:Microphone test.

RCV Packet Loopback ON– the sound from the microphone is played through the earpiece.
SPK Packet Loopback ON– the sound from the microphone is played through a polyphonic speaker.
EAR Packet Loopback ON– the sound from the headset microphone is played through the headphones.
Packet Loopback OFF– disable microphone testing.

*#0842# - Vibration motor test.

Rice. 16: Vibration motor test.

on– the device constantly vibrates;
off– the device does not vibrate;
auto– the device vibrates periodically.

Other service codes that I often use.

*#12580*369# - Checking the motherboard calibration history. RF cal - calibration date; if the date is missing, the board is not calibrated.
*#0782# - Checking the set date and time. Allows you to check the watch quartz.
*#06# - IMEI check.
*#1234# - checking the software version. Warranty repairs require updating device software to the latest version.
*#2222# - checking HardWare software version.
*#2767*2878# - custom reset. This is a reboot of the device, during which the user settings will be reset to factory settings, but the data will be saved.
*2767*3588# - full reset. This is a reboot of the device, during which the system’s factory settings are restored and all system information is cleared, including installed programs, contacts, and SMS. Deleted information cannot be restored. Data located on memory cards and SIM cards is not deleted.
*#87976633# - factory reset. Reset is used on devices based on Android OS.

To use service codes on phones with Windows Mobile OS and tablet PCs without a GSM module, you must enter the service code dialing mode.

##634# - phones based on Windows Mobile OS;

Tablets without GSM module (type in calculator):
+32286798378+ GT-P7510, GT-P7310.
+30012012732+ GT-P5110, GT-P3110.

Preconfiguration

For some phones, after updating the software, you need to perform preconfiguration - specify the region (SER or Russia) to which the phone belongs. If this is not done, then there may be problems with SMS, searching in the phone book, and some standard applications may be missing.

For phones on the UMTS platform (for example, S5230, S5250):
*#5239870*# in the menu that appears, select pre-configuration, enter *#27236*# , select SER.

For Agere platform phones (eg C3011, C3530, E2232):
*#272*HHMM# Select SER from the list that appears. HHMM is the time on the display at the current moment.

So we found out how you can test the Samsung GT-I9300 Galaxy S3.

P.S. If you encounter any errors during the firmware process or the device does not want to be detected by the computer at all, read this. It describes typical problems and errors that novice users often encounter.

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