Device owners Samsung are often faced with the need to find out the exact version of the operating system installed on their gadget. This is required not only out of curiosity, but also to check the availability of security updates, install specific applications or solve software compatibility problems. The interface One UIthat the company uses changes periodically, and the path to the treasured numbers may look different on models of different years of production.
There are several reliable methods for obtaining this information, ranging from the standard settings menu to the use of engineering codes. Understanding the difference between the kernel version Android and the shell version One UI is critical to correctly diagnosing the device. In this article, we will analyze in detail all the available methods and answer frequently asked questions from users.
Checking through the main settings menu
The most obvious and safest way to get information about the software is to use the standard phone settings section. This method is suitable for absolutely all users, regardless of technical level, and does not require the installation of third-party software. Just unlock the screen and find the gear icon.
After entering the menu, you need to scroll the list down to the very end. There you will find the item Phone information (or About phone). By clicking on it, you will be taken to a section with technical information, where the device model and model number are usually indicated at the very top. However, the operating system version is often hidden just below or requires additional action.
In modern versions of the shell One UI version information Android is placed on the main screen of the "Phone Information" section. You will see a large number indicating the major version, and in a slightly smaller font the security patch level. If you are using an older model or custom firmware, you may need to click on the item. section also displays the version Software details.
If the "Software Information" item is missing, try quickly tapping "Build Number" 7 times to activate Developer Mode - sometimes this allows access to hidden data.
Please note that this section also displays the version One UI. This is a proprietary add-on from Samsung, which is visually and functionally different from “pure” Android. It is important not to confuse these two values, since application requirements may relate specifically to the version of the system kernel.
Use of hidden engineering codes
For more advanced users or in situations where the settings menu is not available (for example, when the interface freezes), there are special service codes. They allow you to access a hidden device information menu directly from the Phone app. This method works on most original devices Samsung without root access.
Open the calling application and dial the combination *#1234#. After entering the last digit, a service window with three lines should automatically open: AP, CP and CSC. We are interested in the line AP (Application Processor), since this is where the version of the firmware and kernel is encrypted. Android.
The decoding of the code in the AP line is as follows: usually it is a set of letters and numbers of the form Pxxx or Ux. The number immediately following the letter of the region version or firmware type often indicates the Android version. For example, in the firmware code for the Galaxy S21, the number may correspond to a major version of the OS.
⚠️ Attention: Do not try to change values in the engineering menu or press buttons whose purpose you do not know. This may lead to resetting the network settings or incorrect operation of the modem.
Another useful code is *#9900#. It opens a menu SysDump, where information about the system version and memory status is also duplicated at the top of the screen. This method is useful if the first code for some reason does not work on your specific modification of the smartphone.
Recovery menu and boot mode
If the smartphone does not boot in normal mode or is unstable, you can find out the software version through a special service menu Recovery. This method requires precision, as navigation is done using the volume buttons rather than the touch screen. This menu is entered when the device is turned off.
To enter, you must simultaneously hold down the Volume Up and Power buttons (on some models with a button Bixby you need to press it instead of the power supply or together with it). Hold them until the logo appears Samsung, then release the power button, but continue to hold the volume until a menu appears with text on a black or blue background.
At the top of the menu screen Recovery usually a text string containing the model name and operating system version is displayed. It looks something like this: Android Recovery - 11 or Android 13. This is guaranteed to show the real version of the kernel, even if the system interface is damaged.
What to do if the Recovery menu is in Chinese?
On some gray devices, the menu may be in Chinese. In this case, focus on the numbers in the top line or use the combination *#1234# before entering recovery mode.
There is also a mode Download Mode (firmware mode), which can be accessed by holding Volume Down + Power (or by connecting a cable to the PC with the volume held down). The warning screen before starting the firmware also briefly indicates the current version AP and Android versions.
Third-party diagnostic applications
When the built-in tools are not enough or you need to get the most detailed technical summary, specialized utilities from the store come to the rescue Google Play. These applications read system files and display information in a convenient, structured form, often more understandable than standard menus.
One of the most popular and reliable tools is the application AIDA64. Once installed and launched, it automatically scans your device. You need to go to the OS (OS) section, where the version Android, API level, Linux kernel and other technical details will be clearly indicated. The application interface is completely translated into Russian.
Another worthy option is the app DevCheck Device & System Info. It provides detailed information not only about the software, but also about the status of the battery, sensors and processor in real time. The tab System contains comprehensive data about the OS assembly.
- 📱 AIDA64 is a classic choice, shows all hardware and software parameters.
- 🔍 DevCheck is a convenient widget for the desktop with real-time monitoring.
- 🛠 CPU-Z —more focused on the processor, but also shows the OS version.
The use of such applications is especially important if you bought a used phone and want to make sure that the seller did not change the firmware or hide the real characteristics of the device through modifying system files.
Third-party applications provide more detailed information than settings, including the Linux kernel number and build date, which is useful when debugging errors.
Differences between Android and One UI
Users often confuse the version of the operating system Android and the version of the proprietary shell One UI. Understanding this difference is necessary when searching for instructions or updates, since the functionality of the device depends on both components. Samsung develops its shell in parallel with the release of new versions of Android.
Version Android (for example, 12, 13, 14) determines the basic capabilities of the system, compatibility with applications and fundamental functions security. Version One UI (for example, 4.1, 5.0, 6.0) is responsible for the visual style, additional functions, camera settings and ease of use of the interface.
Below is a version correspondence table that will help you figure out which version of the shell corresponds to which version of Android on devices Samsung recent years:
| Android version | One UI version | Year of release (approximate) | Android code name |
|---|---|---|---|
| Android 10 | One UI 2.0 / 2.5 | 2019-2020 | Quince Tart |
| Android 11 | One UI 3.0 / 3.1 | 2020-2021 | Red Velvet Cake |
| Android 12 | One UI 4.0 / 4.1 | 2021-2022 | Snow Cone |
| Android 13 | One UI 5.0 / 5.1 | 2022-2023 | Tiramisu |
| Android 14 | One UI 6.0 / 6.1 | 2023-2026 | Upside Down Cake |
It is worth considering that on older devices, a new version of the shell can be installed with the old version of Android, although the company Samsung usually updates them together. However, there are exceptions in the form of interim security updates, which update only the patch, without changing the major version of the OS.
⚠️ Attention: Interfaces and version numbering may vary slightly depending on the region where the device is sold and the specific model (A, S or Note series). Always check the information with the official support site.
Frequent problems when determining the version
Sometimes users are faced with a situation where the specified version does not match the expected one, or the information field is empty. This can be caused by several factors, from software glitches to custom firmware features. Let's look at the most typical scenarios.
If you reflash the phone yourself or through a service center by installing a custom assembly (for example, LineageOS or a custom one based on One UI), the data in the menu may be displayed incorrectly. In such cases, firmware developers often change the standard identification strings, and the system may show the kernel version instead of the Android version.
Another problem arises when using unofficial update methods. If your device has been unlocked (unlocked) from your carrier, over-the-air (OTA) updates may be blocked. As a result, the phone will show the old version, although a new Android has already been released for this model.
☑️ Diagnosis of incorrect version display
In rare cases, a display bug may be caused by damage to the system partition build.prop. This is a file containing the assembly properties. If it is damaged, the system cannot correctly read data about itself. Solving such a problem requires qualified intervention and flashing the stock software through the app Odin.
Before any manipulations with the firmware, be sure to back up your personal data via Samsung Cloud or Smart Switch, since a reset will return the phone to factory settings.
Why is the Android version not updated automatically?
Automatic update may not work come due to regional restrictions, the use of custom recovery, the presence of root access, or simply because the update queue for your model has not yet arrived. Also check the availability of free memory space.
Is it possible to downgrade the version of Android on Samsung?
Officially, Samsung prohibits version rollback (Downgrade) due to protection Knox and prevention of vulnerabilities. Trying to flash an older version via Odin often results in an error or locked bootloader, although in some cases this is possible if the bootloader bits match.
Does the One UI version affect the speed of the phone?
Yes, new versions of One UI often require more processor resources and RAM. On older models, switching to a new version of Android with a heavy shell can lead to a noticeable decrease in performance and rapid battery drain.
Where can I see the installation date of the current update?
The installation date of the latest update is usually located in the same menu Software information, just below the version number. It says "Installed on [date]". This helps you understand how current your security patches are.
What is a build number and why do you need it?
Build Number is a unique identifier for a specific firmware version. Specialists need it to accurately identify software when searching for solutions to problems on forums. For an ordinary user, it is enough to know the major version of Android.