Buying a smartphone, especially a popular brand like Xiaomi, always carries a certain risk of a fake or a refurbished device. The electronics market is full of replicas that look almost indistinguishable from the original, but have a completely different filling. That's why checking the unique ID of the device becomes the first and most important step after buying or even before it, this code allows you to look into the "passport" of the gadget and learn its history.
A unique number is assigned to each mobile device in the factory and does not change throughout its life, unless complex chip reprogramming has been done. Knowing this code, you can consult the official databases of the manufacturer or carriers to confirm the legality of importation, the date of activation and the existence of an official warranty. Ignoring this procedure can lead to the purchase of counterfeit goods that are not subject to repair in authorized centers.
In this article, we will discuss in detail all available verification methods, from simple to simple. USSD-You will learn to distinguish between original devices and “grey” builds and understand which parameters to look for first when checking Redmi or Poco.
Where to find IMEI code on Xiaomi devices
Before you start checking, you need to get the ID itself. On Xiaomi smartphones, there are several standard ways to find out this information, and the best way to check the data from different sources to eliminate input errors. The fastest method is to use a system command that works on any good device.
Just open the Phone app and type *#06#. The screen will instantly pop up with the basic data: two codes. IMEI (for two-sim model, serial number and sometimes MAC-This data must match the data on the box.
⚠️ Warning: If a window does not appear after dialing a command or zeros are displayed instead of numbers, this is a sure sign of an over-enhanced or counterfeit device with modified software.
You can also find information in the system settings menu. To do this, go to Settings → About Phone → General Information. Here the data is presented in text form, and it is easy to copy. Remember to also look at the back cover of the device (if it is not removable) or under the battery, and also on the sticker on the original package - there should be a bar code with the corresponding numbers.
☑️ Verification of data conformity
Official check on the Mi Verification website
The most reliable source of information is the company’s official portal, Mi Verification, which is designed to help users distinguish between original products and counterfeits, but it is important to understand that this tool primarily checks the presence of the device in the global database of shipped goods, not its current technical condition.
To do the check, go to the official website verifikator.mi.com (or regional equivalent). IMEI code, but CAPTCHA-The system automatically determines the device model, color and approximate release date, and if the system issues a message "Product verification result: This product is original", then the phone was actually manufactured by the company.
| Status of verification | Meaning | User actions |
|---|---|---|
| Original | The original device. | Continue to verify the guarantee |
| Not Found | There's no data in the database. | Check the correctness of the input, possibly a fake |
| Invalid | Wrong format | Recheck the entered figures |
| Multiple Queries | Lots of requests. | Wait or change IP-address |
It's worth noting that having a phone in the database doesn't guarantee that this particular instance wasn't stolen or recovered after major repairs. Chinese craftsmen have learned to clone IMEI from the original devices to copies, so the database will show "Original" even if you have a replica in your hand. A cloned IMEI is often only detected when you try to register with the operator's network or when you have a deep diagnostic.
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If the official Xiaomi site does not open or is running slowly, try using incognito mode in the browser or change the browser. IP-Address to another region, as servers may be overloaded.
Verification of warranty and activation dates
The second critical step is to check warranty status, with warranty.mi.com providing an official service that lets you know if a device is activated and when support expires, especially when buying smartphones from hand or in small stores where you can sell used devices as new.
The process is similar to the previous one: enter IMEI and CAPTCHA. In response, the system will provide information about the activation date (Warranty Start Date) and the warranty end date (Warranty End Date). If the dates coincide with the period of your purchase, everything is fine. If the warranty has already expired or activation occurred several months ago, you have a B/U (used) or Refurbished device.
Sometimes, the activation date is the default (e.g., production date + 90 days) and this is normal for devices that have not been activated by the end user on first turn on, in which case the warranty will start counting from the moment of first access to the Internet with the SIM card.
What to do if the guarantee does not break through?
Decoding the plant code and model through IMEI
For a deeper analysis, you can use the structure of the number itself. IMEI consists of 15 digits, and each group carries certain information. The first 8 digits are TAC (Type Allocation Code), which can determine the model of the device and the manufacturer, which is especially important for the (distinction) Chinese and global versions.
Knowing the TAC, you can tell which region the phone was originally intended for, for example, devices for the Chinese market often have differences in supported LTE frequencies and NFC availability compared to global versions, and you can also identify a “reassembled” device from the code if the claimed model does not match the TAC code.
- 📱 The first 8 digits are the model and manufacturer ID (TAC).
- 🏭 The following 6 digits are the serial number of the device (SNR), unique to each instance.
- ✅ The last digit is a check number calculated using the Moon algorithm to check the validity of the entire number.
There are many online calculators that automatically decrypt TAC. By entering the first 8 digits of your IMEI into such services, you will see the exact name of the model (for example, M2102J20SG). If the description of the model is “China Version”, and you bought “Global”, it is worth thinking about the origin of the gadget.
Use of third-party services and databases
If official methods don’t give a complete picture, third-party resources come to the rescue, aggregating data from a variety of sources, including carrier and service center databases, and IMEI.info or its counterparts are one of the most popular and informative tools.
These platforms allow you to get a report that contains information about the blacklist (Blacklist), if the phone is listed on the blacklist, it means that it was lost, stolen or not paid a loan in the country of origin, in Russia and CIS countries, such devices can be blocked by operators, and turn into a brick without the possibility of calls.
In addition, third-party databases can show repair history if a device was serviced on large networks, or the date of first registration on the network, which helps to identify refurbished devices that are sold as new. Often these phones have a replaced body or screen, which is difficult to see visually, but easy to calculate from the date of the first activation, which can be a year ago.
⚠️ Warning: Be careful when using free versions of third-party sites. Full reports are often provided for a fee, and the free version can only show the basic model.
How to distinguish the Chinese version from the global version
The issue of firmware version and regional affiliation is closely related to IMEI verification. Chinese versions (CN Version) are often cheaper, but may have limitations: the lack of some 4G frequencies (Band 20), the presence of Chinese and English (without Russian on the menu), and the lack of Google services out of the box (although they are usually easy to install on Xiaomi).
Global versions (Global) have a "G" at the end of the model (e.g. M2102J20G), while Chinese versions have a "C" or "I" (for India). IMEI checks on the official website will clearly indicate the region. If you bought a phone as global and it is listed as Chinese, then the seller has refashioned the device by installing global firmware on top of Chinese.
Such flashing (change of region) carries risks: notifications, banking applications (NFC payment), Widevine L1 (no HD quality in Netflix) and Mi Pay may not work.
- 🌏 Global Version - factory global firmware, a box with the inscription Global, there is Russian and Google.
- 🇨🇳 China Version is a Chinese firmware, only Chinese/English in the box, no Google.
- 🔄 Global ROM (Chinese phone with cross-stitched global firmware, the riskiest option.
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Buying a device with a re-stitched firmware (Global ROM on China Hardware) is always a lottery, Xiaomi’s official warranty does not apply to such devices, and the stability of work is lower than that of the original global versions.
Frequent problems and ways to solve them
Users often face technical difficulties in checking, the site may not respond, the code may not be read by the scanner, or the data in different databases may differ, most often problems are associated with congestion of Xiaomi servers during peak hours or with incorrect character input (for example, confusing the number 0 and the letter O).
If the official website is making a mistake, try entering IMEI through the feedback form in the Mi Support app or via a live chat with the operator, and you can call the support hotline in your area and dictate the code to the operator – they have access to internal databases.
If the IMEI does not match anywhere (on the box, on the menu and on the site), and the phone is working, there is a high probability that the motherboard was replaced with a non-original or taken from another device, which significantly reduces the cost of the gadget and makes it economically uncooperative to repair it.