How to accurately determine the date of purchase of a Xiaomi smartphone: official and hidden methods

Why it’s important to know the exact date of Xiaomi’s purchase

The date of purchase of a Xiaomi smartphone is not just a formality, it depends on the duration of the warranty, the possibility of free repairs in case of breakdown, as well as the relevance of firmware and security updates. For example, if you bought a Redmi Note 12 in 2023, but according to the documents it is 2022, the service center may refuse warranty service because of “expired”.

In addition, the date of purchase helps to identify fraud when buying a used device, sellers often hide the real age of the phone to sell it for more, and if you plan to sell your Xiaomi, potential buyers will ask about the date of purchase, without it, the transaction can fail.

In this article, we will discuss all the official and hidden ways to find out when a Xiaomi phone was purchased, from checking the box to asking the service center. No “secret codes” or questionable programs: only working methods confirmed by users and Xiaomi support.

Method 1: IMEI Testing is the Most Reliable Method

Each Xiaomi smartphone is assigned a unique IMEI (International Mobile Equipment Identity) that can track the date of the device’s activation, which works even if you don’t have a box or a check.

To find out the IMEI, do one of the following:

• 📱 Type *#06# on the phone keyboard and the screen will show a 15-digit code (or two codes for two-digit devices). SIM-map).
• 📦 Look at the sticker under the battery (for models with removable battery) or on the back of the phone.
• 📄 Find it. IMEI in settings: Settings → The phone. → General information → Status IMEI.

Check the IMEI through the official services:

1. Go to IMEI.info (paid check) or SNDeeP (free for Xiaomi).
2. Type the IMEI into the search box and confirm that you are not a robot.
3. In the results, find the Date of First Activation or Warranty Start Date lines – this is the date of the first activation (usually the same as the date of purchase).

⚠️ Note: Some online services may show an inaccurate date if the phone was not activated immediately after purchase (for example, lying in a warehouse.

Method 2: Date on the box and warranty card

If you still have the original Xiaomi package, it must have a sticker with the serial number (S/N) and the date of production. However, the date on the box is not the date of purchase, but the date of manufacture of the device, the difference between them can be from 1 to 6 months (depending on logistics).

Where to look for information:

• 📦 Sticker on the back of the box – look for Manufacture Date or Date of Production lines: YYYY-MM-DD or YYMMDD).
• 🏷️ Warranty card (if attached) – it must indicate the date of sale (Date of Sale).
• 🛒 Check or invoice is the most accurate source, but is often lost.

Example of decoding the production date on the box Xiaomi Redmi 9A:

⚠️ Warning: Forged boxes, the date may be forged, always check it against Mi Account or Mi Account data. IMEI.

💡

If there is no date on the box, try to find it by serial number through the service mi-code.ru. Enter S/N in the search box - the system will show the release date and model.

Method 3: Checking with Mi Account (Xiaomi account)

If the phone was linked to a Mi Account, you can find information on the date of the first activation in your account, which only works for devices that have at least once logged into your Xiaomi account.

Instructions for verification:

1. Open your phone Settings → Xiaomi account (or go to account.xiaomi.com).
2. Go to the Devices section.
3. Find your phone in the list and click on it.
4. Scroll down to the Device Information block, and there will be an Activation Date string.

If the device is not listed, it means:

• 🔄 The phone was reset to factory settings after your purchase.
• 🚫 The device was not linked to the account (for example, bought "clean").
• 🕵️ The account has been deleted or blocked.

Make sure your phone is connected to the Internet | Log in to your Xiaomi | Check that the device appears in the list of "My devices" | If the phone is not on the list, try linking it back-->

Important: The activation date in Mi Account may differ from the purchase date by 1-3 days if the phone was in a warehouse or store before sale.

Method 4: Requesting Xiaomi Service Center

If none of the previous methods worked, the most reliable way is to contact the official Xiaomi service center, where employees have access to a database that stores information about sales and activation dates.

How to make a request:

1. Find the nearest service center at mi.com/service.
2. Contact them by phone or online chat (specify phone model and IMEI).
3. Provide proof of ownership of the device (e.g., a photo of a box with a serial number).
4. Wait for the answer – usually the data is sent within 1-3 working days.

What will be required for the request:

• 📱 IMEI telephone (required).
• 📦 Serial number from the box (preferably).
• 📄 Screenshot from Settings → About a phone with device information.

⚠️ Note: Service centers may refuse to provide data if the phone was purchased informally (for example, brought from abroad without a local guarantee.

💡

An official request to the service center is the only way to obtain a legally significant date of purchase, which will be accepted during warranty repairs.

Method 5: Alternative methods (for advanced users)

If the standard methods didn't work, you can try the less obvious ones, which require technical skills or additional data.

1.Apply through ADB (Android Debug Bridge)

With the ADB command, you can extract system logs, where the date of the first phone boot is sometimes saved.

adb shell dumpsys package com.android.providers.settings

In the conclusion, look for lines with first_install_time or initial_boot_time.

Analysis of the serial number

Some Xiaomi models (e.g. Redmi 4X, Mi A1) have their production date encrypted in their serial number.

• The first 3 characters are the factory code.
• The next 2-4 characters are year and week (e.g. 7A = 2017, week 10).

3. request from the seller (if purchased online)

If you bought your phone on AliExpress, Wildberries or the official Mi Store, please contact the platform to provide your order details.

• Order number.
• IMEI devices.
• Email linked to the account.

What to do if the date of purchase is not known

If none of these methods work, you have a few options:

1. Focus on the date of production

Add to the date from the box 1-3 months (average time of logistics and sales). For example, if the box says 2023-06-01, the phone was most likely bought in July-September 2023.

2. Check the update history

Go to Settings → About Phone → System Update → Update → Update History. The first update is usually installed shortly after activation.

3. Use indirect signs

• 📅 Check the date of the first photos in the gallery (if the phone was not reset).
• 📊 Check the date of registration of a Google account if it is linked to a phone.
• 🔋 Estimate battery wear: if capacity has fallen by 15-20%, the device is likely 1-2 years old.

⚠️ Warning: Without official documents (check or warranty card), service centers may refuse warranty repairs.

FAQ: Frequent questions about Xiaomi's purchase date