Buying a Xiaomi smartphone in the secondary market is always fraught with risks, one of the main ones is the likelihood of buying a restored device, identifiable as a new one. These phones could be repaired after falling, flooding or burning the motherboard, and then returned to life with replaced components. 2-3 less than the original devices.
How to distinguish between a restored Redmi or POCO We analyzed service center data, user feedback and official Xiaomi recommendations to collect 10 working methods of verification — from visual inspection to deep diagnostics through the engineering menu. In this article you will find step-by-step instructions with photos, tables of comparison of signs and answers to frequent questions.
⚠️ Importantly, even if the phone has passed all the checks, it doesn't give you 100% guarantee of originality. Fraudsters are constantly improving methods of masking restored devices. Always require a check and a warranty card when buying.
Verification of packaging and configuration
The first thing to look out for is the box and the contents. Xiaomi's original packaging has a few key features that are hard to fake:
- 📦 Print quality: the Mi or Redmi logo should be clear, blurry, and color rich. Forgeries often show shifts in shades or uneven paint.
- 🔖 Serial number: at the bottom of the box should be pasted sticker with IMEI, S/N Check if it matches the number on the phone itself (more on this in the next section).
- 🔌 Set: the original set always has a proprietary cable (with a logo on the connector), a power adapter (with a marking) MDY-XX-XX) And the Chinese/English documentation, and the absence of at least one element is a cause for concern.
Pay special attention to the film on the screen. On new Xiaomi it is always glued perfectly, without bubbles or gaps. If the film is damaged or its edges move away, this is a sign that the phone has already been used. Also check if the factory sticker is removed from the back cover (on models with a fixed battery).
⚠️ Warning: Fraudsters often paste stickers with serial numbers from other boxes. Always check the data on the package with the information in your phone settings and on the Xiaomi website.
What does the original Xiaomi box look like in 2026?
Verification of IMEI and serial number
IMEI (International Mobile Equipment Identity is your phone's unique identifier, and it tells you your device history, including repairs or locks. IMEI rightly:
- On the phone: dial *#06# - the screen will appear number (or two numbers for devices with two). SIM-Write it down.
- On the box: check with the number on the sticker (should match completely).
- In Settings: Go to Settings → The phone. → General information → IMEI.
- On Xiaomi: Enter the serial number (S/N) official check-up page.
If the data does not match or the site gives an error "Invalid" S/N", You're either a fake or a refurbished device. IMEI And if you use services like IMEI.info, they'll show you the date your phone is activated, and if it's significantly earlier than the date you bought it, it's a sign of a used device.
| Sign. | The original Xiaomi | Reconstituted/fake |
|---|---|---|
| IMEI matching on the box and on the phone | ✅ Coincides completely. | ❌ Not matched or absent |
| Checkup result on mi.com | ✅ "Valid with a production date | ❌ "Invalid" or "mistake" |
| Date of first activation (IMEI.info) | ✅ Coincides with the date of purchase (±1 month) | ❌ Much earlier (6)+ months) |
| Serial number on sticker | ✅ Clear, with holography (on new models) | ❌ Blurred, glued |
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If the seller refuses to provide the box or allow inspection IMEI — Even if the phone looks new, without the original packaging, you can't confirm its status.
Visual inspection of the body and screen
Recovered phones often have repair marks that you can see on close inspection.
- 🔍 The gaps between the case and the screen: on the new Xiaomi they are minimal (0.1-0.3 mm). If the gap is larger or glue is visible, the phone was dismantled.
- 🎨 Color of case: Recovered devices often show differences in the shades of plastic/glass (especially at the joints.
- 💡 Screenlight: Turn on white background at maximum brightness. If you notice yellowish spots or uneven backlighting, the screen was changed.
- 🔧 Rotors on the back cover: new phones have factory-marked (for example, cross-shaped with a point.
Pay special attention to cameras. Refurbished Xiaomi often installs non-original modules that can be identified by:
- Uneven position relative to the body (shift to the side).
- The lack of a factory sticker on the module (on new phones it is always there).
- Distortion of color reproduction in the photo (compare with the model reference pictures).
To test the screen, use a broken pixel test: open a monochromatic image (black, red, green, blue) and examine the display from different angles.
- Dead pixels (dots that do not change color)
- "Burns" from static images (for example, traces of icons).
- Artifacts when scrolling (strips, flickering).
Check the gaps between the screen and the body|Check the color transitions on the body|A backlight test on a white background|Scroll the screen at maximum brightness|Take a photo of the test object and compare colors-->
4.Diagnostics through engineering menu and tests
Xiaomi's hidden menus allow you to get real-world data about your phone that you can't fake without special hardware. Here's how to get there and what to check:
Method 1: Engineering Menu (CIT)
- Open the Phone app and dial ##4636##.
- Select Phone Information.
- Scroll down to Uptime, if it's more than 100 to 200 hours on the new phone, the device has already been used.
Method 2: Equipment test
- Type ##6484## (on some models #64663###).
- Select the Manual Test and check it consistently: 🔋 Battery: If the capacity is less than 95% of the declared capacity (for example, 4800 mAh instead of 5000 mAh) – the battery is replaced. 📶 Network: if the signal is constantly jumping or there is no support for the declared frequencies - modem problems. 🔊 Speakers/microphone: Distortion of sound or low volume indicates replacement of components.
Method 3: Checking the sensors
Install the Phone Doctor Plus app or AIDA64 And you can run a full diagnostic:
- 📱 Motherboard model: if it does not match the official for your model, the fee is replaced.
- 🔄 Battery charging cycles: more than 100 cycles on a new phone - a sign of use.
- 🌡️ Processor temperature: if it rises above 50°C in simple - possible problems with thermopaste (result of repair).
⚠️ Note: Some Xiaomi refurbished engineering menus may be blocked or modified. If the codes don't work, this is a reason to doubt the originality of the firmware.
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Even if the phone passed all the tests, the engineering menu says it's running more than 500 hours -- you're definitely looking at a used device -- that's one of the most reliable signs.
5. Analysis of firmware and software
The firmware can tell you a lot about the history of the phone. Refurbished devices often have:
- 🔄 Informal assemblies MIUI: Check the version in Settings → The phone. → Version. MIUI. If it ends in dev, beta or has a non-standard number, the firmware was reflashed.
- 🔓 Unlocked bootloader: go to Settings → Additionally. → For developers → If it says "Unlocked," the phone was opened.
- 📅 Firmware build date: In the same settings, look for the build number. If the date is older than 6 months, the firmware is outdated (possibly the phone was in stock or under repair).
For a thorough check:
- Install. MIUI Version Checker from Google Play.
- Compare the version of your firmware with the official version for your model on the site MIUI Downloads.
- If the versions do not match or your build is marked as "Custom" - the firmware is unoriginal.
Critical Sign: If the Developer Settings have an option enabled OEM Unlocking means that the bootloader has been unlocked for firmware. On new phones, this option is always disabled.
6. Checking the battery and the time of autonomy
The battery is one of the most vulnerable components that is almost always replaced when it is repaired.
Method 1: Through AIDA64
- Open the application and go to the Battery section.
- Capacity: If it is less than 90% of the declared (for example, 4500 mAh instead of 5000 mAh) - the battery is worn out. Temperature: above 35°C in plain - a sign of degradation or an unoriginal battery. Voltage: must be 3.7–4.4V. Values outside this range indicate problems.
Method 2: Autonomy Test
- Charge your phone to 100% and disconnect from the network.
- Turn on the plane mode, set the brightness to 50% and start the video in the cycle.
- The new Xiaomi should last at least 8-10 hours, and if the time is less than 5 hours, the battery is worn out.
Method 3: Visual inspection
On some models (e.g. Redmi Note 10 Pro), you can gently plug the back cover (if it's removable) and look at the battery.
- A holographic sticker with the Xiaomi logo.
- The production date is not older than 1-2 months from the date of purchase of the phone.
- The batch number matching the data on the box.
⚠️ Note: Some refurbished Xiaomis are equipped with batteries from other models (for example, from the same model). POCO X3 This leads to rapid wear and risk of fire.
7. Check through Xiaomi service centers
If you doubt the originality of the phone, the most reliable way is to contact the official Xiaomi service center.
- 📡 IMEI Blacklisted: If your phone is listed as stolen or locked, you will be warned.
The cost of such a check is usually 500-1500 rubles, but it is worth it.
- Xiaomi Service Center on Leo Tolstoy Street (Moscow).
- Mi Store & Service in the shopping center "Gallery" (St. Petersburg).
- Any authorized partner (list on the official website).
If the seller refuses to provide the phone for inspection, it is a reason to think, 90% of the time, the restored devices do not pass service diagnostics.
8.Guarantee Purchase: How to Avoid Cheating
Even if you've checked your phone on all counts, you still run the risk of running into a skilled fraudster.
- 🛒 Buy only from official sellers: Mi Store, Svyaznoy, M.Video or proven marketplaces with buyer protection (for example, Wildberries with the option "Secure transaction").
- 📄 Require a complete set of documents: check, warranty card (for 12-24 months for new devices) and certificate of conformity.
- 🎥 Take a video of the unpacking, which is your proof in case of disputes. IMEI.
- 💳 Use secure payment methods: bank card (you can contest the payment) or cash in person (only after a full check!).
If you buy a phone with your hands, you must:
- Ask the seller to show his or her ownership history (such as a check from a communications salon).
- Check to see if the phone is listed on the SNDeeP stolen database.
- Make sure there are no Mi Accounts on your phone (go to Settings). → Accounts).
⚠️ Attention: Up to 30% of ads for the sale of “new” Xiaomi are fraudulent on Avito and Yula, POCO X5 Pro and Xiaomi 13 Lite.
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If the seller insists on paying in advance or refuses to meet in person, this is a sure sign of fraud.