How to check the year of release of the Xiaomi Redmi phone: the full guide

Owning a modern smartphone often requires accurate knowledge of its characteristics, especially when it comes to the date of production. For users of Xiaomi and Redmi devices, this issue becomes critical when buying used equipment, issuing a warranty or selecting accessories. Many owners wonder how to accurately determine when the gadget came off the conveyor, because the marking on the box can be lost.

Understanding the age of the device helps you assess the residual battery life and the relevance of the software. Older models may not receive security updates, which makes them vulnerable. In this article, we will discuss in detail all the available methods to determine the year of release of your Xiaomi without installing third-party software.

There are several proven ways to get this information, from simple combinations of digits in the code to analyzing the factory number. The serial number (S/N) is the most reliable identifier containing the encoded production date. We will look at each method Step-by-step so you can choose the most convenient for your situation.

Analysis of factory markings and boxes

The easiest and most obvious way to know the age of the device is to look carefully at the package. The white sticker that usually sticks to the end or back of the cardboard box contains all the basic information. Look for a line that says Date or Production Date, which indicates the month and year of assembly.

If the box is still there, look for the barcode and serial number, and the production date is often duplicated next to the IMEI, but it's worth remembering that paper labels can fade over time, making the information unreadable, and then you'll have to use software-based verification methods.

⚠️ Warning: Do not blindly trust stickers pasted by a retailer in a store. only factory markings on the box itself or under the battery compartment are considered official (if the design allows it to be removed).

For devices with removable battery cover, information can be duplicated on the inside of the case. If you have an old Redmi, remove the back cover and remove the battery, look for a laser engraved or date sticker. This is true for models released a few years ago.

• 📦 Look for a white barcode sticker on the end of the box.
• 📅 Find the "Date" or "Mfg Date" field for the exact date.
• 🔍 Check the safety of the label and the readability of the barcode.

Use of service code for verification

In the Android operating system, on the basis of which the shell works MIUI, There's a hidden engineering menu that allows you to access technical information about the phone, including production data. USSD-code.

Open the Phone app and dial ##64663#. If the menu is successful, you will see a list of tests. You are interested in the Version or CI section. In some versions of the firmware, the production date can be displayed immediately on the main screen of this menu.

##64663##

It's important to understand that this code doesn't work on all models. In recent versions of MIUI, access to some items on the engineering menu may be limited, and if the code doesn't work, the system will simply ignore the input or issue an error message.

An alternative code that may work on some devices is ##4636##. Go to Phone Details. Although it rarely shows the exact build date, you can see the time of the last reboot or usage statistics, which indirectly confirms the age of the device.

• 📞 Dial the code in a standard call without a call.
• 🛠 Look for the Version items", "CI" or "Project Info".
• 📱 Please note that the new firmware code may be blocked.

IMEI and serial number transcription

The most accurate method that doesn't require an internet connection is to manually decrypt the IMEI or Serial Number (S/N), which are unique to each device, and you can find them by typing *#06# on your phone or looking at the settings.

Xiaomi's serial number is typically 10-12 characters. The first two digits often indicate the year of production and the next two digits indicate the month. For example, if S/N starts at 23, the phone is released in 2023.

⚠️ Attention: Encoding format S/N It can be different for different plants (Foxconn, Wingtech, Huaqin). Do not use the same decryption scheme for all models without checking.

For IMEI, encoding is even more difficult, but the first 8 digits (TAC) indicate the model, and the subsequent ones may contain information about the batch. The most reliable use is online calculators or decoding tables, since manually determining the year by IMEI without a directory is almost impossible.

To find out IMEI without calling, go to Settings → About Phone → All settings. There will be IMEI and Serial Number. Write this data down for further analysis or verification on official resources.

Online services for checking the production date

There are many web resources that allow you to check the release date by IMEI. The official Xiaomi website has a section for authentication, which can also display the date of activation of the device.

Third-party services like IMEI.info or SnDeepInfo have extensive databases, and by entering a serial number or IMEI, you can get a detailed report, including the year and month of production, as well as the history of repairs (if any).

When using third-party sites, be careful not to share your personal data. Only the IMEI number is enough to check. Some services may ask for payment for a full report, but basic model and year information is often available for free.

• 🌐 Use only proven and popular websites.
• 🔑 All you need to do is check. IMEI, password not required.
• 💳 Beware of sites that require payment for a simple year check.

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Online IMEI checks give the most complete picture, including warranty status and first activation date, which is critical when buying a used device.

Third-party apps for Android

If the built-in tools do not work, specialized applications from Google Play come to the rescue. Programs like Device Info HW, CPU-Z or AIDA64 collect detailed information about the hardware.

Once you install this application, start scanning the system. In the "System" or "Device" section, you can often find the Manufacture Date field. However, it should be noted that this data is read from system files that may have been changed or inaccurate.

The CPU-Z app will also show the processor model and sensors, which help to indirectly determine the generation of the device, for example, if the phone has a processor that was discontinued in 2019, then the phone cannot be newer than this period.

⚠️ Note: Apps can show firmware build date or system first boot date rather than physical phone assembly in factory.The difference can be several months.

For the most accurate data through the software, try Phone Info SAM (which also works on Xiaomi) or analogues that specialize in reading hidden logs.

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Install validation apps only from the official Google Play store to avoid viruses and identity theft.

Age determination by characteristics and software

Sometimes you can find out the year of release just by analyzing the specifications. Pay attention to the version of Android and MIUI installed out of the box. If the phone runs Android 8, it is unlikely to be released later than 2019-2020.

Also important is the type of charging connector and the presence of a headphone jack: Models with a Micro-USB connector are guaranteed to be older than 2018. The lack of a 3.5 mm connector in Xiaomi's flagship lines has become the norm after 2019.

Cameras and resolution are also a time marker, and if you have a 13MP main camera without a wide angle, that's a typical feature of the 2017-2018 budgetees, and even entry-level models today have 48-50MP modules.

• 🔌 Micro-USB indicates the age of the device 5+ years.
• 🤖 Old Android version out of the box is a sign of the past generation.
• 📷 Low resolution cameras are typical of old budget models.

Frequently Asked Questions (FAQ)