How to check the year of release of the Xiaomi phone: step-by-step instructions for all models

Knowing the exact year of Xiaomi’s smartphone release is critical when buying a used device, warranty repairs or checking originality. 2-3 And it's a year, and that's a direct impact on battery life, firmware relevance, and market value. It's not always the manufacturer's timeline on the package, but there are hidden ways to determine it, from decoding the serial number to analyzing the service menus.

In this article, we will discuss all working methods: from official (through the official) IMEI and S/N) The first time you activate the Mi Account, you will pay special attention to fakes, their serial numbers often do not correspond to the standard logic of Xiaomi. If you are planning to buy or have already become the owner of the device, these instructions will help to avoid deception and assess the real age of the gadget.

Tip: Prepare the phone box (if any), the phone itself and internet access before checking – some methods require online checks through databases.

1. Serial number check (S/N) — principal

Serial number (S/N) — It's a unique device identifier that contains coded information about the location and date of production. Xiaomi has a standardized number format that can be decrypted even without an Internet connection.

Where to find S/N:

• 📦 On the box sticker (near the barcode).
• 📱 In the phone settings: Settings → The phone. → General information → Serial number.
• 🔋 Under the battery (for models with a removable lid, for example, Redmi) 4A).
• 🖱️ In Mi PC Suite (when connected to a computer).

Xiaomi serial number format (example): 8QFRC19A12345678. Here:

• 8QF — Plant code (not important for date).
• R is the model code (may not be available).
• C19A — Production Date Code: Week 19, 2019.
• 12345678 is a unique serial number.

Date transcript:

⚠️ Note: On fake phones, the serial number can be generated by accident or copied from the original device. Always double-check it through official services (see Section 3).

2. Determination of the year to IMEI — alternative

IMEI (International Mobile Equipment Identity is another unique identifier that is assigned to each phone. S/N, It does not contain direct release date information, but it can be used for verification through operator and manufacturer databases.

Where to find IMEI:

• 📱 In settings: Settings → The phone. → General information → IMEI.
• 📞 Type on the keyboard *#06# - a window will appear with IMEI.
• 📦 On a sticker under the battery or on a box.

How to check on IMEI:

1. Copy the 15-digit number (example: 861234567890123).
2. Go to one of the services: 🌐 IMEI.info (Paid Extended Verification). 🌐 SNDeeP.info (free but limited information).

IMEI

"Date of Manufacture"

"Production Date"

Limitations of the method:

• 🔴 Not all services show a production date, depending on the model and region.
• 🔴 Fake phones may have stolen phones" IMEI from the original devices.
• 🔴 Free services often give approximate data (for example, only a year without an exact date).

3. Official verification through Xiaomi services

Xiaomi provides two official tools for authenticating the device and its specifications, including the release date, which are the most reliable methods, but require access to the Internet.

Method 1: Checking with Mi Verify

Method 2: Checking with Mi Account (for activated phones)

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If the phone is not activated earlier, the first activation date in the Mi Account will coincide with the date of purchase, which will help to identify “gray” imported devices that may have been in stock for years.

⚠️ Note: Xiaomi’s official services may not support older models (released before 2017) or devices for the Chinese market (China) ROM).

Checking by date of battery production

Xiaomi’s smartphone battery has its own labeling, which often includes a manufacturing date, which is useful if the serial number is erased or forged, but requires disassembling the device (for models with a removable lid) or using it. USB-debugging.

How to find the date on the battery:

• 🔋 On most Xiaomi batteries, the date is printed in format YYYY-MM-DD or WWYY (week-year).

Limitations:

• 🔴 The battery could be replaced – the date on it will not coincide with the release date of the phone.
• 🔴 On new models (for example, Xiaomi 13) the battery is not removable – you will need disassembly.
• 🔴 Some battery manufacturers (for example, ATL or SDI) use their date format.

For non-removable batteries:

1. Install the AccuBattery app (available on Google Play).
2. Go to the Health section and find the Production Date field.
3. Compare it to the date of the S/N — more divergence 3 months may indicate a replacement battery.

5. Analysis of firmware and assembly date MIUI

Firmware version MIUI It contains the date of its assembly, which can indirectly indicate the age of the device, which is less accurate, but useful if other methods are not available.

How to check:

1. Go to Settings → About Phone → MIUI version.
2. Click several times on the line with the version until the "More information" menu appears.
3. Look for the Build Date field, such as 20230515 (May 15, 2023).

What does the assembly date mean:

• 📅 If the firmware is older 1-2 The phone was probably in storage or not updated.
• 🔄 The build date may not coincide with the production date - the firmware could be updated later.
• 🚫 On fake phones, the build date is often missing or specified in a non-standard format.

For advanced users:

Through ADB You can get full firmware information, including the date of the kernel compilation:

adb shell getprop ro.build.date

This team will return the date in Mon format. DD HH:MM:SS YYYY (for example, May 15 14:30:22 2023).

Packaging and component inspection

Xiaomi’s box and accessories also contain indirect indications of a production date, a method that doesn’t give an exact date, but helps identify fake or “repackaged” devices.

What to check on the box:

• 📦 Barcode and stickers: on the original boxes, the date of printing is indicated in small print (format) YYYY-MM-DD).
• 🏭 Plant code: Made in India or Made in China, for example, affects the delivery date.
• 🔖 Serial number on the box and phone – they must match.

Signs of counterfeit packaging:

• 🔴 Poor print quality (blurred fonts, mismatched colors).
• 🔴 Lack of hologram or Xiaomi security sticker.
• 🔴 Incorrect barcode (not read by the scanner or leads to a non-existent product).

Accessories included:

• 🔌 Charger: Original power supplies show a production date (e.g. 2022.08).
• 🎧 Headphones: on the package or the headphones themselves can be applied month and year of release.
• 📄 Warranty card: the date of printing must coincide with the date of production of the phone (error) ±1 month).

7. Online services for checking the release date

If you decode it. S/N You can't do it yourself, you can use specialized online tools that analyze the serial number or IMEI And they give you detailed information about the device.

Popular services:

How to use:

1. Select the service from the table.
2. Enter. S/N or IMEI.
3. Check the "Manufacture Date" or "Production Week" box.
4. Check the data against other methods (e.g., battery date).

⚠️ Note: Some online services may retain the inputs IMEI Avoid questionable sites that require payment for a "full report".

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The most reliable method is a combination of checks on the S/N (The date code is decrypted and the official Mi Verify service, and online tools should only be used to double-check.

FAQ: Frequent questions about Xiaomi release date