How to find the Android version on a locked phone

A locked screen or Android loading failure instantly blocks access to the “About Phone” menu, leaving the user without information about the system version, which is critical for choosing an unlocking method or suitable firmware.

Modern smartphones and tablets based on Android have hidden engineering modes that allow you to access technical information even when the screen is locked. These modes are built in by the manufacturer for debugging and restoring the functionality of the device. Knowing the exact software version is critical before starting any manipulations with the system partition.

In this article we will look at all available methods: from visual inspection of the case to using advanced command line tools. You will learn how to safely determine system characteristics without the risk of turning your phone into a “brick.” Please note that some methods require a computer and special drivers.

Visual inspection and packaging of the device

The simplest and safest method, which does not require turning on the screen or connecting to a PC, is to search for information on the case or box itself. Manufacturers often indicate the version Androidthat the device left the factory under on the factory sticker. It is usually located on the back cover (if it is non-removable) or under the battery.

If the sticker is worn off or missing, look for the original packaging. At the end of the cardboard box there is almost always a sticker with a barcode and technical characteristics. It may indicate the build number or the base OS version. However, it is worth remembering that this information may be outdatedif you previously updated the phone over the air.

⚠️ Attention: The information on the box reflects the state of the device at the time of release. If the phone has received OTA updates, the actual system version will be higher than what is stated on the label.

For some brands, such as Samsung or Xiaomi, the device model (for example, SM-G998B) is the key to finding information on the Internet. Knowing the exact model, you can go to the official support site and see what the latest version firmware is available for this device. This will give an approximate understanding of the current situation.

Using Recovery Mode

Recovery mode (Recovery Mode) is a special memory section designed for resetting settings and installing updates. Logging in is possible even when the screen is locked if the device responds to pressing physical buttons. In most stock firmware, the system version is displayed at the top of the screen or in a menu item.

To get into this mode, you need to completely turn off the phone and hold down a certain key combination. The most commonly used combination is the power button and one of the volume keys. Combinations may differ for different manufacturers, so below is a list of popular options.

• 🔘 Samsung: Hold Volume Up + Power button (on new models, you may need to connect to a PC via USB).
• 🔘 Xiaomi / Redmi: Hold Volume Up + Power button until the logo appears.
• 🔘 Google Pixel: Hold Volume Down + Button power on, then in the Bootloader menu select Recovery mode.
• 🔘 Huawei / Honor: Combination Volume Up + Power button.

After loading, you will see a menu with items in English. Look for a line containing the version name, for example Android 11 or build number. Navigation is done using the volume buttons, and selection is done using the power button. If there is no version in the main menu, try selecting View recovery logs, although this will not work on all devices.

Diagnostics via Fastboot mode (Bootloader)

Bootloader mode, known as Fastboot or Bootloader, provides more detailed technical information about hardware and software. Unlike Recovery, this interface often displays data immediately upon boot, without the need to navigate through menus. This is one of the most reliable ways to find out the version Android on a locked phone.

The mode is usually entered when the device is turned off by holding down the Volume Down and Power buttonbutton. An image of a robot or a text menu with technical data will appear on the screen. Look for lines OS Version, Android Version or Product Version. The exact version number will be indicated there, for example 12.0.

It is important to note that on some devices with a Locked Bootloader, the amount of information displayed may be limited. However, basic kernel and OS version information is usually available. If the screen does not light up, but the phone vibrates when you press a combination, try connecting it to the computer - the system may detect the device in Fastboot mode.

⚠️ Attention: Do not select menu items related to unlocking the bootloader (Unlock Bootloader) if your goal is only to find out the system version. This action will completely delete all data from the device.

Connecting to a computer via ADB

For advanced users, the most informative method is to use the tool ADB (Android Debug Bridge). This method requires USB debugging to be previously enabled on your phone. If this function was active before blocking, you will be able to get complete information about the system through the command line of your computer.

First you need to install the package Platform Tools on your PC and connect your phone with a cable. If the device is detected, enter the command in the terminal or command line. Even if the screen is locked, ADB can access system properties if the security level does not block connections to the locked screen.

adb shell getprop ro.build.version.release

This command will print the Android version number (for example, 13). To get more detailed information about the assembly, use the following command:

adb shell getprop ro.build.display.id

If the phone does not respond to ADB commands, debugging may be disabled or the computer is not authorized. In this case, try the command adb devices. If the device status is displayed as unauthorized, you will not be able to unlock access without entering the password on the screen. However, sometimes restarting the ADB server helps.

What to do if ADB does not see the device?

Make sure that the manufacturer's drivers are installed. Try a different USB cable. Check if the file transfer mode (MTP) is enabled in the notification shade, if you have access to it.

Analysis through specialized software

There are third-party apps for managing smartphones that can read information about the firmware without deep penetration into the system. Utilities like AdbAppControl, Mi Flash Tool (for Xiaomi) or Odin (for Samsung) often display the current software version immediately after connecting the device in the appropriate mode.

For example, when connecting a phone Samsung in Download mode (combination Volume Down + Volume Up + USB), the Odin app will show the current CSC and version PDA, which indirectly indicates the Android version. It works similarly Xiaomi Mi Flash in Fastboot mode.

app	Brand	Required mode	Information
Odin3	Samsung	Download Mode	PDA, CSC, Kernel version
Mi Flash Tool	Xiaomi	Fastboot	Android version, Region
HiSuite	Huawei	HiSuite Mode	EMUI version, Android
SP Flash Tool	MediaTek	Power Off + USB	Firmware version ( Scatter )

Using such software is safe for data if you do not press the button Flash or Start. Simply connecting to recognize the device allows you to read the service headers of memory sections. This is especially useful when the phone screen is broken and does not show an image.

Frequently asked questions and problems determining the version

Users often encounter nuances that interfere with quickly obtaining information. For example, custom firmware can change the display of data in the Recovery menu, showing the kernel version instead of the Android version. There are also cases when the phone goes into an endless reboot (bootloop), which makes it impossible to enter standard modes.

If the device is in state bootloop, try holding down the combination of buttons to enter Recovery a little longer than usual, sometimes when the screen briefly fades. In rare cases, removing the SIM card before turning it on helps, since some network failures provoke a cyclic reboot.

⚠️ Attention: The Recovery and Fastboot interfaces may differ depending on the Android version and manufacturer customization. Do not panic if the menu does not match the pictures on the Internet.

If none of the software methods worked, all that remains is hardware identification by model and searching for the latest available firmware on the official website. This will give an understanding of which version Android the device is designed for.

Is it possible to find out the Android version if the screen is completely black?

Yes, if the phone responds to button presses (vibration, sound of USB connection). Connect it to your PC and use ADB commands or apps like Odin/Mi Flash, which blindly identify the device by USB identifiers.

Will entering Recovery reset my data?

No, entering the Recovery or Fastboot menu itself does not delete the data. Data is deleted only when selecting Wipe data/factory reset. Be careful when navigating with the volume buttons.

Why does ADB write "unauthorized" on a locked phone?

This means that the phone has not been trusted with this particular computer before. Without unlocking the screen and clicking the "Allow" button on the access screen, it is impossible to obtain data via ADB for security reasons.

Does the region of purchase affect the Android version in the menu?

No, the Android kernel version is usually the same for global versions, but the build number and feature set may differ depending on the regional firmware (CSC). Utilities like Odin will show these differences.