How to find out the serial number of Xiaomi laptop: 7 proven ways

Determining a unique device identifier is often necessary when registering a warranty, contacting technical support or installing specialized software. For owners of Xiaomi and RedmiBook equipment, finding this information may not seem obvious, especially if the factory packaging has already been disposed of and the stickers on the case are lost. Serial number (SN) is a key parameter that distinguishes your particular instance from millions of others, even if the model and configuration are completely the same.

There are many ways to extract this data, from simple visual inspection to the use of command-line system utilities. Some methods require the laptop to be turned on and access to the operating system, while others work even when the device is turned off or Windows is not installed. It is important to understand that the accuracy of data entry is critical: one incorrect letter or number can lead to an error when checking the status of the warranty on the official website.

In this guide, we'll go through all the options available, from the simplest to the most advanced, so you can find the code you want in any situation. Whether your screen is running or your laptop isn't turning on at all, you can find the unique 12-digit or 16-digit code you need to identify your device. Consider software and physical search methods.

Search for a sticker on the case and packaging

The most obvious and quickest way to find a device ID is by physical inspection. Electronics manufacturers are required to place this information in visible places to simplify warranty service. On Xiaomi Mi Notebook and RedmiBook laptops, a sticker with technical information is usually located on the bottom cover of the case.

If the information on the bottom panel is erased or the sticker is missing (which often happens after removing protective films or using overlay covers), it is worth checking the original box. There is always a barcode on the end of the cardboard package with a serial number printed next to it, this method is ideal if the laptop does not turn on or the screen is damaged.

⚠️ Warning: Never remove factory stickers from the case if you plan to take the device under warranty. SN may be a legal basis for refusal of free repairs by an authorized service center.

It is also worth checking the area under the removable battery, however, it is worth considering that in modern Xiaomi ultrabooks the batteries are non-removable, so this method is only relevant for old or specific industrial models. Visual search requires good lighting, since the font on the stickers is often small and contrasting.

💡

Take a photo of the serial number sticker immediately after you buy it and save it to the cloud, which will save you if the label wears off or unstick over time.

Use of Windows Command Line (CMD)

For Windows users, the most reliable software method is to use the built-in command line utility, which allows you to get data directly from the computer. BIOS or UEFI It's a motherboard that eliminates errors that involve damage to the sticker or box, and it works on all versions of Windows, starting with the Windows version. XP and ending with the latest Windows 11.

To use this method, you need to open the command interface. This can be done by pressing the Win + R key combination, entering cmd and pressing Enter, or by searching the Start menu by typing in the Command Prompt query. In order to obtain correct results, administrator rights are not necessary in this case, but are desirable for full access to system logs.

In the black window that opens, you need to enter a special command WMIC (Windows Management Instrumentation Command-line) This utility requests information from the BIOS. Enter the following line and press the input key:

wmic bios get serialnumber

The system will instantly display the line "SerialNumber" and below it is the code you want. On Xiaomi laptops, it is usually alphanumeric. If you see a message in response to "To be filled by O.E.M." or simply "Default String", this may indicate a cross-stitched BIOS or factory defect in the motherboard firmware, which requires you to contact the service.

Getting information through PowerShell

An alternative to the classic command line is the more modern administration tool, PowerShell, which provides advanced Windows system objects. For owners of RedmiBook Pro or Mi Notebook Pro laptops, this method can be more convenient due to the ability to copy the result to a single command clipboard.

You can run PowerShell through the Start button context menu (right mouse button) or through search. The interface has a blue background, but the principle of operation is similar. CMD. Here we address the class. Win32_Bios, It contains information about the basic I/O system. The syntax of the query is slightly different from the one that's used. WMIC, But the result is the same.

Enter the following code in the input line:

Get-WmiObject -Class Win32_Bios | Select-Object SerialNumber

Once you click Enter, the system will display a table that shows your device's code in the "SerialNumber" column, and PowerShell's advantage is that it can be saved to a text file immediately if you need to send it to support or save it in a document archive.

⚠️ Note: When copying a serial number from the command line, keep an eye out for spaces at the beginning or end of the line. Excess symbols may cause an error "Incorrect serial number" on the warranty verification site.

Use of the BIOS Setup utility

If the operating system is not booting, corrupted, or you are in the installation phase of Windows, access to information can be obtained through the interface. BIOS/UEFI. It is a low-level system that manages hardware before the OS launches. On Xiaomi laptops, the entrance to the operating system is BIOS keystroke F2 immediately after powering on (before the appearance of the Windows logo).

Once in the BIOS menu, navigation is done using the keyboard (arrow and Enter). The interface may vary depending on the model (Mi Notebook Air, Pro, Gaming), but the structure is usually standard. You need to go to the Main or Information tab. This is where the hardware status summary is contained.

In the list of parameters, look for the Serial Number string or abbreviated SN. Also often listed is the motherboard model, version BIOS and MAC-This method is reliable because the data is stored in non-volatile memory of the chip and is independent of the state of the hard disk.

Checking through Mi Account and Mi Support

Xiaomi’s ecosystem allows you to link devices to your Mi Account. If you’ve previously logged in to your laptop through the Mi Support app or synchronized data, the serial number can be displayed in your personal account, which is convenient for tracking warranty and history of requests.

Go to the official Mi Account website or the Mi Support app (available from the Microsoft Store). After you log in, go to the "My Devices" section. Here, the list may contain smartphones, tablets and laptops that have been linked. Select your laptop from the list and the details of the device will be specified SN.

However, notebooks are not automatically anchored as smartphones, and often require manual code registration, but if you registered for an extended warranty, the data will be stored in your profile.

• 📱 Open the Mi Support app on your laptop or smartphone.
• 🔐 Sign in to your Mi Account (the same as on your device).
• 📂 Go to the "Devices" or "Warranty" section".
• 🔍 Find your laptop in the list and click on it to view the details.

This method is especially useful if there are no stickers on the case, and the laptop has already been sent to the service or sold, and you need to remember its number to close the ticket or withdraw from the warranty.

Comparison of methods for searching serial numbers

To make it easier to choose the best way to deal with your situation, we have organized the methods in a table, each of which has its own advantages depending on the current state of the laptop and your goals.

As you can see from the table, software methods (CMD, BIOS) give the most reliable result, because the information is read directly from the chip. Physical methods (stickers) are subject to wear, but indispensable in a broken device.

💡

The most versatile way is a combination of a CMD and a visual inspection, and if the data match, you can be 100% sure that it's correct.

Frequent Questions (FAQ)