How to Check Xiaomi Before Buying: The Complete 2026 Guide

Why checking Xiaomi before buying is not paranoia, it’s a necessity

Xiaomi smartphones have long been popular for their value for money, but as demand has grown, so has the market for counterfeits, grey shipments and second-hand devices, which are brand-new. According to Counterpoint Research, up to 12% of Xiaomi smartphones in the secondary market have trim inconsistencies or hidden defects. Even in official stores, there are errors in assembly or transportation.

This article is not about "just looking at the box" but here you will find a step-by-step verification method that will help you to identify fakes (including clones of the box). MTK-chips), recovered after repair of the device, devices with switched components (battery, camera, speaker) and software manipulation (resetting the charge cycle counter, hiding root rights). 2020–2026 years, including the Redmi Note line 12/13, POCO F5/X5, Xiaomi 13/14 Mix Fold 3.

We will focus on three critical points that 90% of customers miss: verification. IMEI operator-related test (especially for devices from China), screen replacement test with the original AMOLED cheaply IPS, and analysis of fastboot logs to identify flashing traces.

1. Originality Check: How to distinguish the real Xiaomi from the fake

Fakes under Xiaomi are divided into three types: 1) Full clones (based on MediaTek Helio or Spreadtrum chips) - externally identical, but with "firmware-deception". 2) "Frankensteins" - the original case + cheap stuffing (for example, a camera with Redmi 9 in the case of Xiaomi) 12T). 3) “Gray” rebrands – devices of other brands (e.g. Black Shark or POCO), relabeled as Xiaomi.

Start with a visual inspection: Box: The original Xiaomi packaging has:

✅ A matte coating with logo stamping (not glossy!)

✅ Serial number on the sticker matches the number under the battery (checked after opening)

✅ QR-The code on the box leads to the official website mi.com (scan through Google Lens, not the built-in Xiaomi scanner - it can be replaced in fakes).

• 🔍 Logo: The original devices have a laser engraving of "Mi" or "Xiaomi" -- not paint! -- and bring it to the light -- fakes have rainbow-colored paint.
• 📱 Screen: All of them AMOLED-Xiaomi displays (starting with the Redmi Note 10 Pro) have a Always-On Display feature. IPS-panel.
• 🔋 Charging: Original power supplies are labeled MDY-XX-XX (where XX — Counterfeiting is often signed as MI-XX.

⚠️ Fakes are often imitated even by fakes. MIUI, But they don't have any proprietary features, like Game Turbo, Second Space, or Mi Share, and try to run them -- if there's no app or there's an error, it's 100% fake.

Verification IMEI Serial number: how to identify a “gray” import or stolen device

IMEI — This is a smartphone passport:

— Country of origin (first 8 digits of the code) TAA or TAC)

Operator binding (relevant for Chinese devices sold under contract)

Device status (blacklisted or not)

How to check:

1. type on the phone keyboard *#06# - a window will appear with IMEI.

2. Compare it with the number under the battery (if the device is collapsible) and on the box.

3. Check it out. IMEI web-based:

IMEI.info (to define model and country)

SNDeeP (for checking for theft in Russia)

Critical moment: If IMEI Starts with 000000 or repeats on both slots SIM — You see a fake or a device with a switched motherboard, and you can also check if the device is locked through Swappa. ESN (It is important for devices imported from the United States).

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If the seller refuses to show IMEI before buying or saying that "the number is erased" is 100% reason to refuse the deal. IMEI upon request.

3. Diagnostics of "iron": testing the screen, battery and speakers

Even the original Xiaomi can have hidden defects. Use this checklist to check:

Deep screen check:

1. Run the pixel test through the engineering menu (##2886### for Redmi or ##6484### for POCO).

2. Check the uniformity of the backlight: in a dark room, open a white image - the original ones AMOLED-The screens are flat, without yellow spots.

3. Touch response test: Use the Touch Screen Test app from Google Play. Delays over 50ms are a sign of a non-original display.

The battery is the most vulnerable.

Real capacity: Install AccuBattery and charge your phone to 100%, compare it to passport data (permissible deviation is no more than 5%).

— Charging cycles: Enter the Engineering Menu ##4636## → Battery information: charge counter shows the number of full cycles. < 10.

— Heating: During charging, the body should not be heated above 40°C (check through) AIDA64).

⚠️ Note: If the seller says "the battery has been replaced by a new one," ask for checks from the service center. BAK) swell after 3-6 months and can damage the motherboard.

4. Software diagnostics: how to identify traces of repair or hacking

And the software swapping is one of the most common problems, and even if it's original, it could be:

Refused from Chinese to global (which leads to update issues)

— Hacked to bypass activation (iCloud analogue in the MIUI — linking to a Mi Account)

- Cleared of traces of use (resetting counters, logs).

Steps of verification:

1. Version MIUI: Go to Settings. → The phone. → Version. MIUI. Compare it to the official firmware for your model on the site MIUI Differences in build number - a sign of custom firmware.

2. bootloader status: Enter the command to fastboot:

fastboot oem device-info

If the answer Device unlocked: true – the device is unlocked, which cancels the warranty and increases the risk of hacking.

3. System Logs: Install Logcat Extreme and check for root, magisk, or edl mode records.

Hidden functions of the engineering menu:

— Enter the camera to check ##36446337## (test CMMB, It works on the Redmi Note. 11/12).

— For the test GPS Use ##1472365## (must show at least 10 satellites indoors).

— For verification NFC (If you have one, type ##66336##.

5. Checking the equipment and accessories: what to look for

Unscrupulous vendors often save on components, replacing them with cheap counterparts. Xiaomi's original trim includes:

• 📦 Box with branded embossing and hologram (on models 2023)+ year-end).
• ⚡ Charger marked with marking MDY-12-XX (for fast charging) or MDY-08-XX (Counterfeiting is often 10 to 15 grams easier.
• 🔌 Type-C Cable with a Chip USB-IF (The original cables have an inscription on them. USB SUPER CHARGE).
• 🎧 Headphones (if provided) with a serial number matching the number on the box.
• 📄 Warranty card with the stamp of the official dealer (for Russia - LLC "Xiomi RU").

How to check the charger:

1. Plug it on your phone and run Ampere (the current test app).Xiaomi's original RAM 33W should 5.2V/6.6A or 10V/3.3A.

2.Weigh the power supply: original 67W 120-weight±5 grams, fakes - 80-90 grams.

3. Check the plug: the original contacts are gilded, the fake - covered with copper.

⚠️ Note: If the film is on the screen, it is not the original. Xiaomi never puts the film in the box (except for the model for the Indian market with a mark). IN titled).

6.A check on the secondary market: how not to buy a "cat in a bag"

Buying from hand is always risky, but if you decide to do so, follow this algorithm:

1. Check your device history: – Ask for checks or warranty card (if your phone is warranty). – Request a screenshot from Mi Cloud with the date of first activation (path: Settings: Settings → Mi Account → Devices).
2. Install AccuBattery and check the Health setting. A value below 85% is a bargaining chip (the battery needs to be replaced).
3. Check for Mi Account lock: – Go to Settings → Additionally. → Resetting. If the system requires a password from Mi Account, the phone is tied to the previous owner.
4. Test for "sink": - Light a flashlight in the connector USB-C Oxidation or white plaque is a sign of fluid intrusion. - Check the moisture indicator (red dot under the tray). SIM-If it turns red, the device sinks.

Price markers:

— If the price is below the market by 20%+ — It's probably:

• Device with Mi Account lock

• Phone after unsuccessful repair (for example, with soldered screen plume)

• Fake to the original (especially relevant for the Redmi Note 12 Pro)+ and POCO F5 Pro).

• Refuses to meet at the subway/ mall (offers to “hand on the move”)

Says "the phone is new but without a box"

• Asks for cash payments without receipt

• Not checking. IMEI ore-menu.-->

7. Specifics of checking flagships and folding smartphones Xiaomi

Flagship models (Xiaomi 13 Ultra, Mix Fold 3, Black Shark 5 Pro) and foldable devices require a special approach:

• 📸 Camera: – Check out Leica Authentic (for Xiaomi 13 Ultra): the camera settings should have a Leica Vibrant section. – Optical stabilization test: shoot video in the camera settings 4K When walking - the original module OIS quenches the jitter by 90%.
• 🔄 Folding mechanism (for Mix Fold): - Check the backlash: when opening / closing should not be more than 0.3 mm. - Test for wear traces: shine a flashlight on the loop - scratches or chips indicate active use.
• 🎮 Smartphones (Black Shark, POCO F: – Check the triggers (physical buttons on the ends) – they should work with a force of 50-60 grams. – Trottling test: run 3DMark and watch out FPS. A 15 percent drop in performance after 10 minutes is a sign of overheating or degraded heat paste.

Important for foldable smartphones:

— Check the exterior screen for scratches (Mix Fold 3 has it covered in Schott) UTG — The glass should not be scratched with a coin).

Test for the “memory effect” of the internal screen: turn on the monochrome background and look at the angle – there should be no “shadow” from the previous image.

8.Where to buy Xiaomi: official and reliable sources

Even a perfect check doesn't guarantee no problems when you buy in questionable places.

1. Official Mi Store: – Warranty 24 months, check before issuance. – Minus: prices are 10-15% higher than the market.
2. Official dealers (Svyaznoy, M.Video, Eldorado): - Warranty 12 months, but often there are "gray" deliveries (check out the "Grey" deliveries). IMEI!). — Plus: you can bargain and get a discount.

Blacklist of sources:

— Avito/Yula without warranty

Stores marked “100% original” in the name (often selling fakes)

— Sellers who request payment by card or through Qiwi/YuMoney.

The Imports Council from China:

If you buy on AliExpress, choose models marked Global Version and check for support:

— LTE Band 20 (800 MHz) for Megaphone/Tele2

VoLTE for all operators

Google Services (there are no Google Services in Chinese versions!)

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The most reliable way to purchase - registration through the official website mi.com/ru Yes, it's longer, but you're guaranteed to get the original with full warranty.

FAQ: Answers to Frequent Questions