Smartphone owners brand Samsung often face the need to find out the exact version of the operating system installed on their device. This is required not only out of curiosity, but also to check compatibility with new applications, diagnose problems, or before selling the gadget.
The shell interface One UIthat the company uses on top Androidmay hide some technical details from the average user. However, the manufacturer has provided several reliable ways to obtain this information, ranging from a simple settings menu to engineering codes.
In this guide, we will look at all available methods: from standard buttons in the menu to using a computer for the most difficult cases. You will learn to distinguish between the basic version of the system and the firmware build number, which is critically important when finding solutions to technical problems.
Standard method through the settings menu
The most obvious and safest method is to use the standard smartphone interface. The path to information may differ slightly depending on the version One UI, but the logic remains the same for all models Galaxy.
You need to open the application Settings and scroll the list to the very bottom. There you will find the item About phone (or About device). By clicking on it, you will see a brief summary: device model, model number and, most importantly, version Android.
On modern models with shell One UI 3.0 and newer information about The system version is displayed on the main screen of the section. If you do not see the number right away, click on the line Software information. There will be two key numbers indicated: the Android version and the One UI version.
- 📱 Open the application
Settingson the main screen. - 📜 Scroll down to item
About phone. - ℹ️ Click on
Software informationfor detailed information.
⚠️ Attention: On very old models (manufactured before 2016) item may be called simply
About the deviceand located at the top of the settings menu, and not at the bottom.
Pay attention to the item Build number. This is a unique identifier for your specific firmware. If you contact a service center or forum for help, it is this code, and not just the Android version, that will help specialists understand the configuration of your Samsung.
Using engineering codes and service menu
For deeper diagnostics, there are special USSD codes that open hidden service menus. This method allows you to find out not only the software version, but also the kernel compilation date, which is useful when checking the originality of the device.
Open the application Phone (dialer) and enter the code *#1234#. Immediately after entering the last digit, a service window should appear on the screen. Three lines are displayed here: AP (main firmware), CP (modem) and CSC (regional settings).
*#1234#Line AP contains information about the version Android and assembly. For example, the code G991BXXU5AWK1 encrypts not only the version, but also the release date of the firmware (in this example - 2022, November, 1st week). Deciphering these symbols requires knowledge of the specification Samsung, but the very fact of the presence of the code confirms the authenticity of the system.
If the code #1234# does not work, try #12580*369# on some older models of the Galaxy S and Note series.
There is also a code *#9900#that opens the menu SysDump. In this menu you can find an item Version Infowhere technical information is presented in a more detailed form, including information about the Linux kernel on which it is based Android.
⚠️ Attention: Do not change the settings in the service menu
*#9900#if you do not know their purpose. Accidentally resetting logs or changing debugging modes can lead to unstable operation of the phone.
Checking via connection to a computer
If the smartphone screen is broken or the sensor does not respond, you can find out the system version by connecting to a PC. This method requires drivers Samsung USB Driverinstalled on the computer.
Connect the phone to the computer with a cable. In Windows Device Manager, your device may appear as Android ADB Interface or simply as a communication port. To obtain accurate data, it is best to use the utility Samsung Smart Switch or console commands ADB.
| Method | Required software | Complexity | Informativeness |
|---|---|---|---|
| Smart Switch | Samsung application | Low | Basic OS version |
| ADB Commands | Android SDK Platform Tools | High | Full (kernel, build) |
| Device Manager | Windows drivers | Average | Device ID only |
When using the app Smart Switch, after connecting, the phone is automatically detected, and the current software version will be indicated in the main app window. If an update is available, the app will also show which version Android will become available after installation.
For advanced users, a command line method is available. After enabling USB debugging on the phone (in the menu For developers), enter the command:
adb shell getprop ro.build.version.releaseThis command will display the net number of the Android version, for example, 13 or 12. The command adb shell getprop ro.build.display.id will show the full assembly ID, similar to what is visible in the phone settings.
What to do if the computer does not see the phone?
Make sure that the cable is working and supports data transfer, not just charging. Try a different USB port, preferably USB 3.0 (blue). On the phone screen, when connecting, select the “File Transfer” or “MTP” mode, and not “Charging Only”.
Detecting the version on a locked or broken screen
The situation when the smartphone turns on, but there is no image or the sensor does not work, is one of the most difficult. In this case, standard methods are not available, and you have to rely on key combinations.
You can try to enter the Recoverymode. For most modern Samsung you need to turn off the phone, then hold down the Volume Up and Power buttons (on models with a Home button - Home + Up + Power). Hold them until the logo appears.
In the Recovery Mode, the system version is often not indicated explicitly, but the build number may be indicated there in the upper part of the screen in small font. However, navigation here is carried out only with the volume buttons, which is difficult if you have poor vision or no image.
A more reliable way for devices with a non-working screen is to use an adapter USB-OTG. By connecting a regular computer mouse to your smartphone via an OTG cable, you can control the cursor on the screen (if the matrix is intact, but the sensor is dead) and go to Settings → About phone.
⚠️ Attention: Entering Recovery mode on new Samsung models (Android 11 and higher) often requires connecting the USB cable to the computer. Without connecting to a PC, the button combination can simply reboot the phone in normal mode.
☑️ Actions when the screen is black
Decoding the build number and regional differences
Knowing how to read the build number gives the user an advantage when searching for firmware. The firmware code Samsung consists of several parts, each of which carries a semantic load.
Consider an example code: A515FXXU4CUB1.
The first characters (A515F) indicate the device model (Galaxy A51).
The next three letters (XXU) indicate the region and type of firmware (European, open).
The number (4) is the version of Android within this model (does not always coincide with the OS version, but indicates a major update).
Next letter (C) indicates the year of manufacture (A=2010, B=2011... C=2012... U=2021, V=2022, W=2023).
The next letter (U) is the month (A=Jan, B=Feb... L=Dec).
The last characters are the version number for the month.
Regional differences (CSC) are critical. Firmware for Russia (SER) may differ from Ukrainian (SEK) or European (EUX) in the presence of pre-installed software, support for LTE frequencies and a call recording function. You can find out your region code through the code *#1234# in the CSC line.
The build number contains an encrypted firmware release date, which allows you to understand how long ago your device received security updates.
Frequent problems and nuances of determining the version
Sometimes users encounter a situation where one version is indicated in the menu, but applications require another, or the system behaves unstable. This may be the result of an unsuccessful update or a failure in displaying data.
In rare cases, on custom firmware or after unqualified repairs, an incorrect version may be displayed in the menu. Checking through engineering code *#1234# in such cases is the only way to see the real state of affairs.
It is also worth considering that telecom operators can release their own versions of firmware with reduced functionality. Such devices often have additional indexes in the model name or assembly number. For example, devices from a specific operator may have restrictions on unlocking the bootloader.
Is it possible to update Android if you do not receive a notification in the settings?
Yes, you can. Go to Settings → Software update → Download and install manually. If it is empty, try changing the region (CSC) through special utilities on your PC, but this may void the warranty.
Why does the Android version not change after an update?
Often updates are in the nature of security patches and do not change the major version of Android (for example, from 12 to 13). They only update the build number and security patch level.
Does the Android version affect the speed of Samsung?
New versions of Android on older devices may run slower due to increased resource requirements. However, One UI is optimized every year, so the difference is not always noticeable.
How do I know if my Samsung supports the new version of Android?
Official support information can be found on the Samsung website in the support section for your model. Typically, flagships receive 3-4 major OS updates, and budget models receive 1-2.
What does “Security Patch Level” mean in the settings?
This is the date of the last update of the vulnerability databases. Even if the Android version does not change, the patch level must be updated monthly or quarterly to protect against viruses and hacking.