Where to see the serial number Xiaomi: all the ways for smartphones, watches and routers

The serial number (Serial Number or SN) of a Xiaomi device is a unique identifier that will be useful for warranty service, unlocking the bootloader, authenticating or restoring access to an account. However, not all users know where to look for it. Depending on the model (smartphone, smartwatch, router or laptop) and the state of the device (works / does not turn on), the methods of obtaining an SN differ.

In this article, we will examine all official methods, including hidden menus, physical labeling and software tools. IMEI and MAC-Addresses, and why they're confused, POCO or Mi doesn't turn on - don't worry: there are solutions for this case too.

1. Serial number on a working smartphone Xiaomi

The easiest way is to use the built-in MIUI settings. It is suitable for all modern models, from the Redmi Note 12 to the flagship Xiaomi 14 Ultra.

1. Open the Settings app (cog icon).
2. Go to About Phone (or Device in new MIUI versions).
3. Tap on the item All characteristics (may be called General information).
4. Scroll down to the Serial Number block.

If you have POCO or Black Shark, the path may be slightly different: Settings → System → Phone → Model and hardware. On some firmware, the serial number is hidden behind an additional tap on the line Model Number (5 times in a row).

Open "Settings"|Find the "About the Phone" section"|Tap "All characteristics"|Find the line "Serial number"-->

⚠️ Note: On custom firmware devices (e.g. LineageOS), the serial number may not be displayed correctly or replaced with a random character set.

For quick access to the SN without clicking on the menu, enter the combination in the phone application:

##4636##

In the engineering menu that opens, select Phone Information – the serial number will be in the list of technical data.

2. How to recognize SN through packaging and documents

If the phone doesn't turn on or you haven't activated it yet, you can find the serial number on the original box and in the accompanying documents.

• 📦 A sticker on the back of the box - usually next to the barcode and IMEI. Look for the line. S/N or Serial No..
• 📄 Warranty card - in the column "Serial number" (can duplicate data from the box).
• 🛒 Check or invoice – if you bought in an official store (for example, Mi Store), SN indicate in shipping documents.

Important: On fake devices, the serial number on the box and in the phone settings may not match. This is a sure sign of fake. To verify authenticity, compare the SN from the box and from the Settings menu → About the phone. They should match the symbol to the symbol.

In the phone settings|On the box.|On the warranty card.|On the Xiaomi website|I don't know where to look.-->

3. Serial number via Xiaomi account (mi.com)

If the phone is linked to a Mi Account, the serial number can be remotely identified via a website, and this method works even if the device is lost or stolen.

1. Go to account.xiaomi.com and log in.
2. In the menu, select Devices.
3. Find the right gadget in the list and click on it.
4. The card will be displayed with the Serial Number.

If the device does not appear in the list, check:

• 🔄 Has account sync been enabled (Settings) → Xiaomi account → Synchronization).
• 📱 Is the phone connected to the Internet (without a network, the data is not updated).
• 🔒 Have you manually removed your device from your account.

⚠️ Warning: After resetting your phone to factory settings without decoupling your account, the serial number may temporarily disappear from the list of devices on the site.

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If you are selling a phone, be sure to delete it from your Mi Account via Settings → Xiaomi Account → Devices.This will protect your data and prevent locking for the new owner.

4.Where to look for SN on a broken Xiaomi phone

If the smartphone doesn't turn on, doesn't charge, or gets stuck on the MI logo, you can still find the serial number.

Under the battery (for models with removable battery)

On older devices (e.g. Redmi 3S, Redmi 4A), the serial number is put on a sticker under the battery to see it:

1. Remove the tray for SIM-map.
2. Remove the back cover (a mediator or plastic card will be required).
3. Carefully gently pluck the battery and lift it.
4. Find a sticker that says S/N.

On 4.2. SIM-tray

Some models (e.g. Mi 5, Mi 6) have a serial number engraved on a metal tray for the production of the car. SIM-Take out the tray and look at the end or inside of it.

4.3 via Fastboot Mode

If the phone is at least somehow responsive to the power button, try entering Fastboot mode:

1. Turn off the device (clip Power + Volume up for 10 seconds).
2. Press Power + Volume down before the Fastboot logo appears.
3. Connect your phone to your PC and type in the command line: fastboot getvar serialno

5. Serial number on other Xiaomi devices

In addition to smartphones, Xiaomi is releasing smartwatches, routers, laptops and even electric vehicles. Let's take a look at where to look for SN in each case.

5.1 Smart watches and fitness bracelets (Mi Band, Watch)

• 📦 Box - a sticker on the back (near the barcode).
• ⚙️ Application Mi Fit/Zepp — Open the profile of the device, tap the icon of the clock → Device information.
• 🔍 The body is on the back of some models (for example, the Mi Watch) SN fine-printed.

Routers (Mi Router, Redmi Router)

• 🌐 Web interface – go to the control panel at 192.168.31.1, State section.

Laptops (Mi Notebook, RedmiBook)

• 💻 Underbody Sticker – Look for Serial Number next to the model.
• 🔧 BIOS — press when loading F2 or Del, section Main.

6.The serial number differs from the IMEI and MAC-address

Users are often confused SN, IMEI and MAC-address, although these are different identifiers with different purposes:

• 🔢 Serial number (SN) — Unique device code assigned by the manufacturer, required for warranty, repair, authentication.
• 📡 IMEI — International mobile device ID used by operators to block stolen phones. *#06#.
• 🌐 MAC-Address: Identifier of the network adapter (Wi-Fi, Bluetooth) needed to configure routers. → The phone. → All characteristics → MAC-Wi-Fi address.

For example, when unlocking the bootloader, Xiaomi requires you to link the account to the device by serial number, and the operator blocks the phone by IMEI. You may need to connect to a corporate Wi-Fi network MAC-address.

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The serial number cannot be changed programmatically (unlike the serial number). MAC-If the seller offers to “change the address”. SN" — it's a fraud or a forgery.

7.How to verify Xiaomi authenticity by serial number

With SN, you can make sure your device is original, not fake.

1. Go to the official checkout site: mi.com/global/verify.
2. Enter the serial number and the captcha.
3. The system will show the device model, the date of production and the status of the warranty.

If a site is experiencing an Invalid Serial Number error, it can mean:

• ❌ Device fake (clone).
• ⚠️ Serial number erased or damaged (try alternative methods in Section 4).
• 🔄 The device is too new and has not yet been added to the database (wait 1-2 weeks).

⚠️ Warning: Fraudsters often sell Xiaomi 'grey' devices with fake stickers SN. Before buying from hand, check the number on the official website and compare it with the data in the phone settings.

8. Frequent Questions About Xiaomi Serial Number