Finding out the year of manufacture of an Android phone may be necessary in a variety of situations: from checking the authenticity of the device before purchasing to diagnosing faults or selecting compatible spare parts. This information is often hidden behind complex codes and technical tags, but with the right approach it can be retrieved in a few minutes.

Unlike the iPhone, where the production date is usually encoded in the serial number according to a unified scheme, Android device manufacturers use different standards. Samsung, Xiaomi, Huawei other brands encrypt this information in their own way, which complicates the task. However, there are universal methods that work for most models.

In this article we will analyze all the current methods - from IMEI analysis to hidden engineering menus - and also explain why some methods can give inaccurate results and how to avoid this.

📊 Why do you need to know the year of manufacture of the phone?
Buying used devices
Repair or replacement of parts
Curiosity
Other

1. Checking by IMEI: the most reliable method

IMEI (International Mobile Equipment Identity) is a unique 15-digit code that is assigned to each mobile device. It contains information about the model, country of origin and issue date (for most brands). You can find out IMEI in several ways:

  • 📱 Type on the phone keyboard *#06# —the code will be displayed automatically.
  • 📄 Look at the sticker under the battery (if removable) or on the device box.
  • ⚙️ Go to Settings → About phone → General information → IMEI.

After receiving IMEI, use specialized services for decryption. For example, for devices Samsung the first 8 digits of the code contain the production date in the format YYYYMM (where YYYY is the year, MM is the month). Other brands may require online verification through official services or third-party databases.

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If the phone supports two SIM cards, it will have two IMEIs. Check both - the release dates must match.

⚠️ Attention: Some manufacturers (for example, Xiaomi in the latest models) have stopped encoding the date in IMEI. In this case, the method will not work.

2. Analysis of the serial number (S/N)

The serial number, like IMEI, contains encoded information about the device. However, its structure varies depending on the brand. Let's consider the most common schemes:

Brand Serial number format How to decipher the date
Samsung R58MXXXXXXX 3rd and 4th characters - month, 5th - year (for example, M5 = May 2026).
Xiaomi 9LNXXXXXXXX 2nd and 3rd characters - week and year (for example, LN = 2020, 35th week).
Huawei DUA-LX9XXXXXX After the hyphen, the 1st digit is the year (for example, 9 = 2019).

To find the serial number, go to Settings → About phone → Status → Serial number or look on the box/sticker under the battery. For accurate decoding, use the manufacturer's official documents or specialized online services.

⚠️ Attention: Some sellers fake serial numbers on stickers. Always check the data with the information in your phone settings.

3. Checking through the engineering menu

Hidden engineering menus contain detailed technical information, including the production date. However, access to them may vary depending on the Android model and version. General algorithm:

  1. Open the application Phone.
  2. Enter the combination ##4636## (for most devices).
  3. Go to the tab Information about phone.
  4. Look for lines with Date of Manufacture or Manufacture Date.

On some devices (for example, Samsung), you may need to enter #0# or *#9999#. If the menu does not open, it means that the manufacturer has blocked access.

What to do if the engineering menu is not available?

On new versions of Android (12+), many manufacturers disable access to engineering menus through codes. An alternative is to use applications like MTK Engineering Mode (for MediaTek chips) or Shortcut Master to search for hidden functions.

4. Using applications for diagnostics

If manual methods do not work, specialized applications will come to the rescue. They analyze the hardware data and often output the manufacturing date. Popular options:

  • 🔍 AIDA64 —shows the date in the section System → Device.
  • 📊 CPU-Z —information in the tab Device.
  • 🛠️ Phone INFO ★Samsung★ —for Samsung devices with detailed decoding.

The advantage of such applications is that they do not require manual codes and often show additional data (for example, battery life or repair history). However, some functions may be paid.

Install the application from Google Play|

Open the “System” section|

Scroll to the “Device” block|

Find the line “Manufacture Date”-->

5. Checking by model and characteristics

If the phone does not turn on or there is no access to the settings, you can determine the year of manufacture by model and technical characteristics. To do this:

  1. Find the exact model of the device (written on the box or under the battery).
  2. Enter it into the search engine along with the words “release date” or “year of release.”
  3. Check the characteristics (processor, memory, cameras) with the official specifications on the manufacturer’s website.

For example, Samsung Galaxy S20 was released in March 2020, and Xiaomi Redmi Note 10 Pro in March 2021. This method does not give the exact production date of a particular device, but allows you to determine the year of release of the series.

⚠️ Attention: Some models (especially budget ones) are produced in for several years with minor changes. In this case, the year on the box may not coincide with the actual production date.

6. Official services of manufacturers

Many brands provide online services to verify the authenticity and history of the device. Here's how to use them:

  • 🌐 Samsung: service Samsung Members or website support.samsung.com (section "Warranty check")
  • 🌐 Xiaomi: enter IMEI on the website mi.com/global/verify.
  • 🌐 Huawei: service consumer.huawei.com/en/support (Warranty Check tab).

These services require registration and sometimes may not show the production date, but they are guaranteed to provide official information about the warranty period, which indirectly helps determine the age of the device.

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Official services are the only way to get 100% reliable data, but they do not work for all regions and models.

7. Physical inspection of the device

In some cases, the year of manufacture can be determined by external signs:

  • 📦 Box and accessories: the original packaging often indicates the year of manufacture (for example, on a sticker with a serial number).
  • 🔋 Battery: some batteries have the production date in the format YYYY-MM-DD.
  • 🏭 Factory marks: There may be date engravings under the back cover or on the SIM tray.

This method is suitable for older devices or when other methods are not available. However, it is the least reliable, since the boxes and batteries could have been replaced.

Frequent errors and how to avoid them

When determining the year of manufacture, it is easy to make mistakes that will lead to incorrect conclusions. Let's look at the most common ones:

  • 🔄 Confusion between the release date of the model and the production date of the device. For example, iPhone 12 was released in 2020, but a specific copy could be released in 2021 or even 2022.
  • 📱 Using IMEI from fake stickers. Always check the code received through *#06#with what is written on the box.
  • 🔧 Not taking into account rebranding. Some devices (for example Redmi and POCO) may have the same hardware platform, but different release dates.

To minimize risks, always use at least two methods (for example, IMEI + serial number or engineering menu + diagnostic application). If the data differs, give preference to official sources.

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Even if two methods showed the same result, check the third. Counterfeits often copy IMEI and serial numbers from real devices.

FAQ: Answers to frequently asked questions

Is it possible to find out the year of manufacture if the phone does not turn on?

Yes, but there are fewer options. Use:

  • Serial number or IMEI from the box/sticker.
  • Physical inspection of the battery or factory tags.
  • Check through the manufacturer's official service (if there is an IMEI).

If all else fails, contact a service center - they can read the data through diagnostic equipment.

Why do different sites indicate different years of manufacture for one model?

This is due to the fact that:

  • Manufacturers can produce one model for several years (especially budget series).
  • Some sources indicate the year announcement, and not the start of sales.
  • In different regions, the release may occur with a delay (for example, in Europe earlier than in Russia).

For accuracy, focus on the serial number or engineering menu data.

Can the production date affect the operation of the phone?

Yes, but indirectly:

  • Battery: even if the phone is new, the battery degrades over time. A 2020 device released in 2026 may have a capacity 20-30% lower than the nominal capacity.
  • Software support: Manufacturers usually update devices within 3-5 years from the release date. After this, security patches stop coming out.
  • Compatibility: older models may not support new communication standards (for example, 5G) or multimedia formats.
How to check if it is tampered with IMEI?

Fake IMEI can be identified by the following criteria:

  • The code does not match what it shows *#06#.
  • Services like imei.info give an error or do not find the device.
  • IMEI starts with 00 or contains repeating numbers (for example, 111111111111111).
  • The IMEI sticker on the phone looks suspicious (blurred font, glue).

If you suspect a counterfeit, do not buy the device - it could be a stolen or “gray” phone.

Where is information about the production date stored in the phone?

The production date can be recorded in several places:

  • eMMC/UF chip (internal memory) - stores factory data.
  • Modem (communication module) - contains IMEI and related information.
  • EEPROM (non-volatile memory) - used to store serial numbers.

Access to this data is usually only possible through specialized software or service centers.