How to accurately determine the operating time of the Xiaomi smartphone: from IMEI to hidden menus

Why it’s important to know the real age of Xiaomi before buying

Buying a used Xiaomi smartphone is always risky: the seller can hide the real life, and the device can be worn out battery or fake. The lifetime directly affects the price, performance and durability of the gadget. For example, the battery loses up to 20% of capacity after 500 charging cycles, and the processor can start to “trog” due to overheating after 2-3 years of intensive use.

In this article, we will discuss 5 How to find out how many Xiaomi phones you have (or Redmi/POCO) It was used by the official methods through IMEI You'll also learn how to detect forgery of documents and why the data from the ##4636## They can lie. They're relevant to all models. 2018–2026 years, including Xiaomi 13/14, Redmi Note 12 and POCO F5.

Method 1: Checking by IMEI through official Xiaomi services

The most reliable method is to query the device history via IMEI through the manufacturer's databases. Xiaomi stores information about the activation date and warranty period, but access to this data is limited.

Find IMEI: Dial on the phone keyboard *#06# and a 15-digit code will appear. You can also find it in Settings → About Phone → General information or on the box under the barcode.
Check through Mi Verify: Go to Xiaomi’s official website, enter IMEI and CAPTCHA. The system will show the date of the first activation (if the phone was not reset to factory settings).

Important: If the seller claims that the phone is new, but the activation date in Mi Verify shows 2022, and in the yard 2026 - you have an obvious fake or "gray" import.

📊 You check. IMEI before buying a used phone?

Always.

Sometimes.

Only if you have doubts.

Never.

✅ Pros of the method: official data, it is impossible to forge.
❌ Cons: Does not work for phones with replacement IMEI (It is found in “gray” resellers) and after a complete reset via Fastboot.

Method 2: Data analysis in MIUI (hidden menus and logs)

MIUI's firmware stores proprietary information about the time of the components, but it's not available, and we'll show you how to get around the restrictions without root rights.

Method 1: Code #4636##

Type ##4636## on the keyboard, and select Battery Information.

🔋 Level of wear (if) >15% – The phone was used extensively)
⏱️ Operating time (in hours) - total time of the screen on.
🔄 Number of charging cycles (norm: up to 500 for Li-Pol batteries).

Warning: Some sellers reset the meters through ADB. If the operating time shows "0 hours" with a visually worn battery - this is a sign of manipulation.

Method 2: System Logs (computer required)

Connect your phone to your PC, turn on USB Debugging (Settings → About Phone → MIUI version – press 7 times) and execute the command:

adb shell dumpsys battery

Find the lines in the conclusion charge_counter (the amount of charge passed through the battery and health (state).=3 tyre.

Battery wear level in ##4636##

First activation date in Mi Verify

Number of installed/removed applications (Settings → Applications)

Presence of autopsy marks (check screws on the case)-->

Method 3: Checking Documents and Packaging

The original Xiaomi documents contain hidden tags that can be used to identify a fake.

Element	Indications of the original	Signs of forgery
Box	The barcode matches the IMEI on the phone, the print is clear, there are no typos.	Blurred paints, typos in the model name (for example, "Redme" instead of "Redmi").
Guarantee pass	The serial number matches the data in Mi Verify, watermarked paper.	The number is printed by the printer, the date of sale has been erased.
Check/invoice	The IMEI is listed, the date of sale coincides with the activation date in Mi Verify.	Check from another store or with another IMEI.

⚠️ Attention: in 2023, cases of counterfeiting of boxes Xiaomi 13 Pro with regurgitated barcodes. IMEI On the box, on the phone and in Mi Verify – they must match.

Method 4: Assessment of physical wear

Even if the documents and software are in order, physical wear and tear will reveal the real age of the phone.

📱 Screen: microcracks under the film, burnt out pixels (check against a monotonous background), yellow spots (a sign of aging) OLED).
🔌 Connectors: USB-C or 3.5 mm jack - scuffs and backlashes indicate frequent connections.
🔊 Speakers and microphones: muted sound or wheezing is a sign of dust (typical for phones over 2 years old).
🔋 Battery: if the body is swelled even a little - the battery must be replaced.

How to check the battery without disassembly

Use the AccuBattery app (Play Market) to run a full discharge-charging cycle, and if the actual capacity is less than 80% of the declared capacity, the battery is severely worn out.

Example from practice: Redmi Note 10 Pro 2021 release with "perfect" data in ##4636## had a bloated battery and backlash in the USB-Ports - clear signs of heavy use despite 'official' 6 months of operation.

Method 5: Verification through third-party services (IMEI.info, SNEK)

If the official methods didn't work, use third-party databases, which collect phone information from service centers, carriers, and user reports.

🌍 IMEI.info: shows the date of production (not to be confused with the date of activation!) For example, if the phone is released in 2020 but sold as "2023 years" - this is a scam.
📊 SNEK: It analyzes the history of connections to networks (payment required) can show which countries used the phone.

⚠️ Note: Services like IMEI.info sometimes get the dates wrong for the Internet. POCO And Black Shark -- these Xiaomi sub-brands can have separate batches of production.

💡

If the seller refuses to provide IMEI for verification or asks for money "for information" - it is 100% a sign of fraud.

What to do if the data is conflicting?

Situation: Mi Verify shows the activation date 2023, and IMEI.info shows the phone is released in 2021, or the seller claims that the phone is new, but in ##4636## you see 300 charge cycles. What do you do?

Check all sources: Compare Mi Verify, IMEI.info, documents and physical examinations. Inconsistency at least in one point is a cause for doubt.
Ask for repair history: If the phone was repaired at an authorized Xiaomi service center, request checks. Official SCs keep records on IMEI.
Use authenticity test: Install the Mi Authenticity Check app (only available in certain regions) and it scans hardware components for matching the original.

💡

If a seller avoids answering questions about operating time or suggests “watching the phone later” is a classic trick to hide defects.

FAQ: Frequent questions about Xiaomi’s lifetime check

Can I reset my time counter in #4636##?

Yes, but only with ADB or custom firmware, like the adb shell dumpsys battery reset, which resets the statistics, but it doesn't affect the actual wear of the battery -- you can check it through AccuBattery.

Why does Mi Verify not show an activation date for my Xiaomi?

Probable reasons: The phone was purchased in China (for the "global" versions, data may not be available); the IMEI was changed (found in the "grey" resellers); the device was never activated through Mi Account. Try checking through an alternative service with a choice of "China" region.

How to know the time of operation if the phone is unlocked (bootloader unlocked)?

Unlocking the bootloader erases some of the service data, but not all. Try: Check the logs through adb logcat | grep "boot" — sometimes there is the first download date. Use TWRP (if installed) to access the /proc/uptime file — it stores the kernel's time. If nothing works, it only leaves you with a physical inspection and document verification.

Can Xiaomi Service Center Provide Phone History?

Yes, but only if the phone was officially repaired. Contact an authorized SCC with a passport and a purchase check. They can issue an IMEI statement with dates of repairs and replacement of components. Importantly, this service can be charged (from 500 to 2000 rubles depending on the region).

How to check POCO F5 or Black Shark – they have their own databases?

For Xiaomi sub-brands, use: POCO: POCO Verify service (similar to Mi Verify). For Black Shark: check through the official website, but the data may be incomplete - the brand often delivers phones without reference to Mi Account. If official services do not help, only IMEI verification through IMEI.info remains.