The acquisition of a Xiaomi smartphone is always a balance between the desire to get advanced technology at an affordable price and the risk of running into a low-quality product or outright fake. The market is saturated with devices imported from different regions, as well as replicas that are visually almost indistinguishable from the originals, which is why the question of how to check Xiaomi when buying becomes critical for every potential owner.
Whether you are buying the latest flagship from a major chain retailer or considering the option hand-in-hand on a popular bulletin board, the algorithm of actions should be uniform.Ignoring basic checks can lead to buying a device with replaced components, hidden defects or blocked by IMEI. In this article, we will break down all the stages of diagnosis that will help you not become a victim of scams.
The look of the gadget is the first thing that catches the eye, but often this is where the first alarm signals lie. Xiaomi’s original packaging is always made of dense cardboard of high quality, with a clear, bright print and smooth seams. On the box must be present stickers with information about the model, color, memory and IMEI-code.
Carefully examine the smartphone itself. The gaps between the case and the screen, and between the back cover and the frame should be minimal and uniform throughout the perimeter. Any backlashes, creaks when the case is easily compressed, or the feeling of a “collection hose” inside, indicate that the device was most likely opened or assembled by artisanal means.
Pay special attention to ports and connectors. In the new device, the USB Type-C connector should look perfectly clean, without scratches and scuffs from repeatedly connecting the cable. The presence of micro scratches around the camera lens or on a metal frame may indicate that the phone was already in use, even if the seller claims otherwise.
⚠️ Warning: If the screen screen screen has already cutouts for the speaker or camera, and the phone itself is sold as "new", this is a sure sign that the factory film was removed and replaced).
The kit is another important marker of originality. The box must contain the smartphone itself, the clip for extraction. SIM-cards, warranty card (filled and stamped by the seller if you buy in the store) and charger.Cable and power supply must also have the Xiaomi logo or MI, and appropriate markings.
Verification of originality by IMEI and serial number
The most reliable way to distinguish the original from the fake is to verify the unique IDs of the device. Each smartphone has a unique IMEI (International Mobile Equipment Identity) code that is sewn in the factory. On Xiaomi devices, this code can be found in several ways.
The easiest way to look at the sticker is on the back of the box or under the tray. SIM-However, to make sure that the hardware matches what you're writing, you need to check it against the system data. Type *#06# on your phone keyboard. IMEI-codes (there can be two if the device supports two) SIM-map).
Once the codes are received, we proceed to online verification, the official Xiaomi service allows you to check the status of the device and its authenticity, enter the received numbers in the appropriate fields on the manufacturer's website, the system must confirm the model and the activation date.
- 🔍 Data matching: IMEI on the box, under the battery (if removable), in the system and on the site must be identical.
- 🌐 Regional version: Check will show which region the device is intended for (Global, CN, EU). Chinese versions (CN) They may not have Russian in the box and may not support all frequencies. LTE.
- 📅 Activation Date: If the test shows that the warranty started a few months ago and the phone is being sold as new, it means that it has already been used or activated ahead of time.
⚠️ Note: There are so-called "top-shoot" phones where IMEI If you type code from a box, the site says "wrong." IMEI», But the phone turns on and works -- it's a 100% fake or a stolen device with a broken number.
Also worth paying attention to is the serial number (S/N). It is often required for extended warranty or refinement of production details. You can find it in the Settings menu → About phone → General information.
Diagnostics of display and matrix
The screen is the most expensive and fragile component of a smartphone. When you buy a used device or device from a showcase, the risk of buying a phone with a replaced display is extremely high. A poor copy of the screen can have worse color reproduction, low brightness and no oleophobic coating.
To check, turn on the device and set maximum brightness. Open a white image (for example, through Google Pictures) and carefully examine the screen from different angles. A quality AMOLED or IPS matrix should not have yellow spots, uneven lighting (“lights”) at the edges or “broken” pixels (dots that burn in a different color or do not burn at all).
Then check the touchscreen. To do this, Xiaomi's engineering menu has a built-in test. Dial the code ##6484## (or #4636## on some versions). Select Touchpanel or Display. Follow the instructions: swipe all areas of the screen. The line should be continuous, without breaks or jumps.
The oleophobic coating is easy to check by dripping a drop of water onto the screen. On the original Xiaomi display, the drop will hold its shape and easily roll without spreading into a shapeless puddle. If water immediately sticks into the screen, the coating is either missing or erased, which is typical of cheap substitutes.
Performance and “iron” testing
Chinese craftsmen have learned to make copies of MIUI (or HyperOS) interfaces based on weak processors. On the outside, the menu looks one-on-one, but there may be ancient hardware inside. To test the real performance and performance, built-in tools are not enough.
Install a specialized application, such as CPU-Z, AIDA64 or Device Info HW. These ulites will show the real name of the processor, the number of cores, the frequency, the model of the GPU and the type of RAM. Compare the data obtained with the official specifications of your model on the manufacturer's website.
Notice the amount of memory. Fraudsters often flash the system so that the settings show 256 GB, although it costs 32 GB physically. When you try to write files above the real limit, old data will start to be overwritten or errors will occur. A test of writing large files will help to identify this fraud.
Also check the communication modules. Put your own in. SIM-map and check:
- 📶 Network Search: The phone must quickly find the operator's network.
- 📡 4G/LTE: Make sure that mobile internet is running at high speed.
- 📞 Sound: Call someone. The person should hear you clearly, without echoes or extraneous noises.
- 📍 GPS: Launch the navigator and check the speed of the satellites.
An important aspect is heating. Run a heavy app or game for 5-10 minutes. The smartphone can get hot, but it should not heat up to a point where it can not be held in your hands, much less turn off spontaneously.
| Parameter | Original | Fake/Restored |
|---|---|---|
| Case materials | Glass, high-quality plastic, metal | Cheap plastic, backlashes, creaks |
| Screen. | Bright, saturated colors, no frames | Dull, "faded" colors, thick frames |
| Camera. | Clear photo, quick focusing | Soap photo, interpolation, lags |
| Imprint scanner. | Instant reaction | Long-term recognition or lack thereof |
Battery check
Battery condition is a key factor when buying a used smartphone. Lithium-ion batteries degrade with time and the number of charging cycles. You can find out the exact wear of the battery on Xiaomi through a hidden menu or special applications.
Enter the dialer code ##6485##. The Battery Info menu will open.
- MB_06: Battery status (should be "Good»).
- MF_02: Number of complete charging cycles.
- MF_05: Real battery capacity (in mAh).
If the cycles are over 500 and the actual capacity is below 80% of the face value, the phone will require a battery replacement in the near future, and check the case for bloating: if the back cover has moved or the screen has started to bulge, it is dangerous to use the battery.
⚠️ Warning: Never buy a phone with a ballooned battery! It's fire-prone. Even if the seller swears that "it was like that from the factory," you can't use such a device.
Cameras and multimedia
Many people buy Xiaomi for the sake of cameras. Checking photo and video modules is a must. Open the camera app and take some pictures in good light and with little light. The photos should be clear, without noise or artifacts.
Check all the lenses, wide-angle, telephoto and macro. Switch between them should be smooth. Record a video with sound to check the microphones. Try zoom - the image should not turn into porridge ahead of time.
The selfie camera also requires attention. Take a photo and check if there is any blur at the edges or problems with focus. In the video format, check stabilization: when walking, the picture should not twitch too much (if the model claims a stabilizer).
Separately, check the vibrator. It should give a clear, tactile response, not hum like a cheap "bell ringer." Check the speakers (main and spoken) at maximum volume - wheezing and coding should not be.