How to see the serial number on the smartphone Xiaomi: all the ways from A to Z

Xiaomi’s Serial Number (S/N) is a unique identifier that can be used in a variety of situations, from checking the originality of the device to warranty repairs or unlocking the bootloader. Without it, it is impossible to officially confirm the phone’s brand identity, activate some Mi Account services or even sell the device in the secondary market. However, not all users know where to look for this number, especially if the phone does not turn on or the box is long lost.

In this article, we’ve compiled all the current ways to get a serial number for Xiaomi, Redmi and POCO smartphones, from standard (through system settings) to little-known (for example, using ADB or through Mi Cloud account). Each method is illustrated with screenshots and provided with step-by-step instructions so that you can choose the most convenient option depending on your situation.

1. Serial number in the settings of the smartphone (the easiest way)

If your Xiaomi is switching on and running normally, the fastest way to find out the serial number is through the settings menu.This method is suitable for all models, including the latest Xiaomi 14 flagships and the budget Redmi Note 12.

1. Open the Settings app** (the gear icon on the home screen).
2. Scroll down and select About Phone (on some firmware - About Device).
3. Put on the item All characteristics or General information.
4. Find the line "Serial Number" (S/N).

On some devices (e.g. POCO F5), the path may be slightly different: Settings → System → About Phone → Model and hardware. If you have custom firmware installed (e.g. LineageOS), the serial number may appear in the Hardware info section.

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If the serial number in the settings appears as unknown or 00000000, it could mean that the firmware has been changed or the phone is not original.

2. View of the serial number on the box and documentation

The serial number is always duplicated on the original smartphone packaging and in the accompanying documents, which is especially handy if the phone is not switched on or locked.

• 📦 On the box: usually on the side or bottom of the sticker, next to the barcode. S/N, Serial No. or IMEI/SN.
• 📄 In the warranty card: the serial number is indicated at the top of the document, sometimes together with the IMEI.

Note that if you bought a phone with your hands, the box and documents could have been forged. To verify authenticity, compare the serial number from the box to what appears in the phone's settings (if it works).

3. serial number via Mi Account (if the phone is lost or stolen)

If you don't have access to your phone, but it was linked to your Mi Account, you can find out the serial number through the web version of Mi Cloud, which works even if the phone is off or in another city.

1. Go to i.mi.com and log in to your account.
2. In the Devices section, select the desired smartphone from the list (if there are several).
3. Click on the gear icon next to the model name and select Device Information.
4. The window that opens will show the serial number, IMEI and other technical information.

Importantly, this method only works if the phone has been online at least once after you have linked to your account. If the device is new and hasn't yet connected to the Internet, the data in Mi Cloud may not be available. Also, after you reset the phone to the factory settings without detaching the account, the serial number in the cloud may temporarily not appear.

4. How to find out the serial number through Fastboot or Recovery

If the phone is not turning on but is responsive to a computer connection (e.g., entering Fastboot mode), the serial number can be obtained using the command line.This method requires installed ADB/Fastboot drivers and minimal CMD skills.

1. Connect your phone to the PC via USB-cable.
2. Press the button Loudness down + Power to enter the Fastboot (the image of a hare in a hat-eared will appear on the screen).
3. Open the command line (Win + R → enter cmd → Enter).
4. If the drivers are installed correctly, you will see a string with the serial number of the device (for example, 1234567890abcdef fastboot).

If the phone loads into Recovery (a menu with an android robot and the words No command), the serial number can be seen at the top of the screen or in the Apply update from ADB section. However, not all versions of Recovery display this information - it all depends on the firmware.

Install ADB/Fastboot drivers (download from [official website](https://developer.android.com/studio/releases/platform-tools))

Enable debugging over USB in the developer settings (if the phone is turned on)

Use the original USB-cable (not all cables support data transmission)

Disable the antivirus (it can block ADB commands)

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5. Check the serial number through the engineering menu (#4636##)

A little-known way is to use the Android engineering menu, which works on most Xiaomi smartphones, but can be blocked on some firmware (such as global versions for Europe).

1. Open the phone application** (call).
2. Enter the combination: ##4636###.
3. In the menu that opens, select the Device Information tab.
4. Scroll down to the Hardware Information block, and there will be a Serial Number bar.

If the combination doesn’t work, try the alternative codes:

• ##225## - displays calibration information (sometimes including a serial number).
• *#06# - shows the IMEI, but not the serial number.

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The engineering menu may vary depending on the version of MIUI. On some firmware, the serial number is hidden - in this case, use other methods from this article.

Serial number on the battery or under the back cover

On older Xiaomi models (e.g. Redmi 4X, Mi A1), the serial number was sometimes duplicated on the battery or under the removable back cover. However, on modern smartphones (beginning with the Redmi Note 7 and later), the battery is non-removable and there is no sticker under the lid. If you have an old model, act like this:

1. Turn off the phone and remove the tray for SIM-map.
2. Tap the back cover with a plastic card (start at the corner next to the volume button).
3. Carefully remove the lid – there may be a sticker with a serial number on the inside or on the battery.

⚠️ Warning: Disassembling the phone will void the warranty if there are traces of autopsy on the case, and there is a high risk of damage to the plumes or battery.

On the new models (Xiaomi 13T, Redmi Note 12 Pro+), the serial number under the lid is not duplicated, instead, the manufacturer places it only on the box and in the firmware.

7.Alternative methods: through a computer, IMEI and service centers

If none of the above methods worked, try these options:

If you are buying a phone with your hands, check the serial number through the official Xiaomi service at the link [https://www.mi.com/global/verify](https://www.mi.com/global/verify) - this will help you avoid buying a fake or stolen device. Enter the serial number in the S/N field and compare the data with those indicated on the box.

FAQ: Frequent questions about Xiaomi serial number