Owners of Xiaomi, Redmi and Poco smartphones often face the need to determine the exact age of their device, which may be required when buying a gadget from hand, issuing a warranty or just out of curiosity about the history of the operating system. Unfortunately, the standard Android settings menu does not have an obvious button “Activation Date”, as implemented in iOS.
However, the Android operating system and the MIUI shell (or HyperOS) keep detailed logs of events that record the very first launch after the factory assembly. We'll look at a few proven ways, from simple service codes to system file analysis. First-onset information is stored deep in the system, but with the right approach is available to every user.
It is important to understand that different methods can show different data depending on the firmware version and model. For example, on older Xiaomi Mi devices, data can be read differently than on new Redmi Notes. Therefore, to get the most accurate result, it is recommended to use a comprehensive approach, comparing readings from different sources.
Verification through system codes and engineering menu
The fastest way to access hidden information is to use special information. USSD-These are commands that are implemented by developers to test equipment, and often contain data on the date of assembly and first activation. You need to open the phone application and enter the sequence of characters.
One of the most common commands for Xiaomi devices is ##6484##. Once you enter this code, the CIT menu automatically opens. You don’t need to run tests, look carefully enough at the top of the screen or the Version section, which sometimes indicates the date of production or the first calibration, which indirectly indicates the time of the first turn on.
An alternative method is to use code ##4636##. It opens the Testing menu, where you can find the Phone Information section. Although the direct date of first turn on is rare here, you can see the device's running time since the last reboot or network time, which helps with calculations. However, the most accurate code for some versions of MIUI remains #64663##.
⚠️ Warning: The engineering menu is for diagnostics. Do not change the settings in the sections, the value of which you do not understand, as this may disrupt the radio module or other system components.
It is worth noting that on newer versions of Android 12/13/14 and the HyperOS shell, access to some codes may be restricted by the manufacturer for security reasons. If the code does not work and nothing happens, then your firmware version is blocking this access method.
Analysis of Mi Account and device binding
Xiaomi’s ecosystem is closely integrated with cloud services, and if you’re logged in to a Mi Account, the company’s servers can store the date of the device’s first binding, which is one of the most reliable ways, since the data is stored on the server side and is not dependent on resets on the phone itself.
To check, go to i.mi.com and log in under your login. Devices often displays a list of all gadgets ever connected to your account. The model name may be accompanied by the date of the add-on, which almost always coincides with the date of first login and inclusion.
Also useful is the MIUI Daemon app or system sync logs. If you enabled contact or gallery sync on the first day of use, check the date the earliest backups were created in the cloud. The earliest backup created automatically often coincides with the date the device first turned on with a minute's accuracy.
This method is particularly effective for used devices: If a seller claims that the phone is new but has been on the Mi Account since 2021, it is a clear indication that the device has already been used, and it is almost impossible to delete the binding data without completely deleting the account from the system, which requires the password of the previous owner.
Using statistics on the use of digital well-being
Modern versions of Android have introduced Digital Wellbeing since version 9, which tracks the time spent in apps and the number of screen turns on, and while it doesn't show the date of purchase, it does keep statistics from the first launch or the last complete reset.
To find this data, go to Settings → Digital Well-Being and Parental Controls. If the device has never been reset to factory settings, the statistics can show the overall usage picture for the entire period. However, if the phone has been reset, the counters will reset. However, in some cases, system processes such as the Android System can show uptime, which, when recalculated, gives an approximate start date of use.
A deeper analysis is possible through ADB (Android Debug Bridge), by connecting the phone to a computer and running the adb shell dumpsys usagestats command, you can get a detailed log of packet usage. The first entry in this log (the oldest) often corresponds to the date of the first switch on or setup of the phone.
☑️ Check through ADB
This method requires a computer and minimal technical skills, but it provides the most “raw” and honest data that has not been filtered by the MIUI shell interface.
Verification of the installation date of system applications
Every Android app preinstalled has a set-up time stamp. For system components that are not updated through the Play Market regardless of firmware, that date often coincides with the ROM build date or first device turn on.
You can use third-party apps from the Play Market, such as App Inspector or Package Viewer. Find a system application that is rarely updated, such as Wallpaper or Calculator from Xiaomi.
If you see a date that coincides with the period when you bought the phone (or when the seller says it was purchased), that’s a good sign. If the installation date of the system applications is significantly older than the stated purchase date, it may have been restored or reflashed.
| Method of verification | Accuracy of data | The need for a PC | Difficulty |
|---|---|---|---|
| Service codes | Medium | No. | Low. |
| Mi Account. | Tall. | No. | Low. |
| ADB team | Very high. | Yes. | Medium |
| Date of system applications | Medium | No. | Low. |
It is important to note that when you update your firmware over the air (OTA), some system applications may update by changing their installation date, so it is better to check the dates of applications that are only updated with a complete flashing of the device.
Serial number and IMEI as time indicators
Although the serial number (S/N) and IMEI do not contain a direct date in an understandable format, they do allow you to determine the release period of a device. Knowing that phones do not usually stay in warehouses for years, you can very likely determine the date of the first turn on.
Xiaomi serial numbers often contain coded production date information, such as specific characters that can indicate the year and week of release, and can be decrypted on specialized checker sites such as imei.info or Xiaomi’s official warranty check service.
⚠️ Warning: Be careful when entering your data on third-party sites.Use only proven resources with good reputations to avoid identity theft.
Warranty verification is another indirect method: mi.com/global/verify can enter IMEI. If the warranty is active, the site will show the expiration date; if you take away one year (the standard warranty period), you will get an approximate date of sale or activation of the device. If the warranty has expired, the system can show the expiration date, which also allows you to calculate the start.
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If the warranty check site writes “Unknown” or shows a date significantly higher than the current one, it is possible that the phone is a grey import or has been activated in another region.
Specificity of the new versions of HyperOS and Android 14
With the release of the HyperOS shell and the upgrade to Android 14, Xiaomi has strengthened its privacy policy.Some previously available methods, such as viewing the exact date through certain system logs or codes, can be blocked or changed.
With new systems focusing more on protecting user data, access to first-enabled logs can only be allowed to authorized service centers through special diagnostic tools, but basic principles such as checking Mi accounts and installing system packages remain valid.
Users of new devices should pay attention to the About Phone section in the settings, and sometimes it will show information about the activation status, especially if the device was registered as part of promotional promotions or extended warranty.
What if all the methods have different dates?
Remember that a Wipe Data reset can change some timestamps, but not all. Deep system logs and Mi Account server binding retain a history that is difficult to completely erase without specialized hardware.