Xiaomi Redmi 9 of what year of release: the full chronology of the model and how to determine the date of production

Xiaomi Redmi 9 has become one of the most popular budget devices of the brand, but many users still get confused in the years of its release, the fact that under this name hides several modifications released in different years – from the original model in 2020 to reissued versions of 2021 and even 2023 (in some regions).

The difficulty is that Xiaomi often re-releases models under the same name but with different internal components. For example, the Redmi 9 for India (ginkgo) and the global version (lancelot) have different release dates and hardware specifications, we collected all available information about the years of release, including data from factory stickers, firmware and official announcements, so you can accurately identify your model.

Official release dates of Xiaomi Redmi 9 by region

The original Xiaomi Redmi 9 was announced on June 10, 2020 at an online presentation in India, but the global version (for Europe, Russia and other markets) was released later on June 25, 2020.

Here is the chronology of the key events:

  • πŸ“… 10.06.2020 – presentation in India (model number) M2004C3LGG, codename)
  • 🌍 25.06.2020 – global release (model number) M2004C3LIG, codename)
  • πŸ”„ 2021 – re-release for some markets (e.g. Redmi 9 Activ in India)
  • πŸ“¦ 2023 year - limited batches of "new" devices (actually unsold stocks) 2020-2021 garland.)

I wonder what in 2023 In the past few years, some vendors have been selling Redmi. 9 It's a new model, although it's the residue of the old stock, and it's important to remember when you buy used devices, because the date of production may be different from the date of sale. 2-3 year-end.

πŸ“Š What is your Xiaomi Redmi 9?
The Indian version (2020)
Global version (2020)
Redmi 9 Activ (2021)
Bought it in 2023.
I don't know.

How to check the year of release of your Redmi 9 by serial number

The exact year of production can be determined by serial number or IMEI, which are indicated on the box, in the settings of the phone (Settings) β†’ About the phone) or under the battery (if you took off the back cover). XXXXXXXXXYYWW, where:

  • YY is the last two digits of the year (e.g. 20 = 2020, 21 = 2021)
  • WW – week of production (01 to 52)

Examples of decryption:

Serial number.Year of releaseA week.Approximate date
ABC12345672026202025June 2020
XYZ98765432108202108February 2021
QWE56789012145202145November 2021

⚠️ Note: If the serial number ends with 22 or 23, This does not mean that the phone is released in 2022-2023 I think it’s probably a week. 22 (may 23 (June) 2020/2021 For accurate verification, use IMEI.info.

πŸ’‘

If the box has a release year and the phone’s settings have a different date, it’s likely that the device was in storage for a long time. This is normal for budget models, but check the battery status (it may have run out during storage).

Redmi 9 2020, 2021 and 2023: What has changed?

Despite the same name, the Redmi 9 versions have key differences over the years, with major changes affecting the processor, cameras and firmware:

  • πŸ”§ 2020 (original): MediaTek Helio G80, main chamber 13 MP, MIUI 11 based on Android 10
  • πŸ”„ 2021 (Redmi 9 Activ): MediaTek Helio G35 (Weaker!), 13MP camera, but different sensor, MIUI 12
  • πŸ“¦ 2023 Year: the same characteristics as in 2020, s MIUI 13/14 (revamped)

Critical difference: Redmi 9 Activ (2021) has a weak Helio G35 processor instead of the Helio G80, which affects gaming performance and multitasking. If you buy a used device, be sure to check the model in Settings β†’ About Phone β†’ Model:

  • M2004C3LGG – Indian version 2020 (Helio G80)
  • M2004C3LIG – Global 2020 (Helio G80)
  • M2101K7BI β€” Redmi 9 Activ 2021 (Helio G35)

Also in 2023, some vendors sold the new Redmi 9 with MIUI 14 firmware, but these were the residues of 2020 stock, which can be identified by the production date in the serial number (see section above).

Check the model number in the settings|Compare the processor (Helio) G80 vs G35)|Estimate the production date for serial|Look at the version. MIUI (11/12 = 2020, 13/14 = reissue)-->

Firmware update history: how the release year affects support

The release year is directly related to what updates your Redmi 9 will receive.The original 2020 model had the following support schedule:

MIUI versionAndroidRelease dateNotes
MIUI 11Android 10June 2020Firmware source
MIUI 12Android 10October 2020Major interface update
MIUI 12.5Android 11May 2021Last major update
MIUI 13Android 112022 (limited)Only for the global version

⚠️ Note: Models 2021 (Redmi 9 Activ) received only one major update – before MIUI 12.5 (Android 11) and then support was terminated.If you want long updates, choose the original 2020 version.

To check the current firmware version, go to Settings β†’ About Phone β†’ MIUI. If it says MIUI 14, it’s probably a flashed device (officially Redmi 9 didn’t get MIUI 14).

What happens if you install a firmware from another version?
Installing the firmware from Redmi 9 Activ (2021) on the original Redmi 9 (2020) will result in a broken camera, an NFC module (if any) and sensor issues, and the reverse is impossible due to different processors (Helio G80 vs G35).

Where to see the production date on a physical device

If you don’t have a box or access to settings, the release date can be found by the factory sticker under the battery or on the tray. SIM-Look for the following markers:

  1. On the sticker under the battery: line of the form MFRD DATE: 2020-06-15 (production date)
  2. On the SIM tray: month and year may be specified in MM/YY format (e.g. 06/20)
  3. On the box: a barcode with an encrypted date (you can decrypt it via UPC Database)

If you don’t want to disassemble the phone, an alternative way is to use the command in ADB:

adb shell getprop ro.boot.ddr_info

The answer will be a line with a production date (e.g. 20200615 = June 15, 2020). To do this, you need to enable USB Debugging in Settings β†’ For developers.

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Even if the phone looks "like new," the 2020 production date means the battery has already lasted 3-4 years. Check its health through the AccuBattery app or in the service menu (#4636##).

Frequent problems with Redmi 9 different years of release

Depending on the year of release, owners of Redmi 9 face different typical problems:

  • πŸ”‹ 2020 Year: Battery wear (capacity drops to 70-80% through 2-3 overheating during charging
  • πŸ“± 2021 (Activ): weak Helio processor G35 It's not a modern game, no. NFC
  • πŸ”„ 2023 (re-release): outdated software (despite the β€œnew” box), application compatibility issues

For models in 2020, the problem with the charging connector is relevant – after 2-3 years it begins to backfire due to frequent use. In versions 2021/2023, this defect is less common, as Xiaomi has slightly improved the design.

Another nuance: Redmi 9 Activ (2021) doesn't have the infrared port that the original model used, so if you're interested in IR control, just take the 2020 version.

Should I buy a Redmi 9 in 2026?

As of 2026, the Xiaomi Redmi 9 is outdated, but it could be an interesting option for the secondary market.

Pros:

  • βœ… Low price (3000-5,000) β‚½ secondary-market)
  • βœ… Removable battery (can be replaced by yourself)
  • βœ… 3.5 mm audio jack and IR port (in the version 2020)

Cons:

  • ❌ No security updates (last one is 2022)
  • ❌ A weak processor for modern games and applications
  • ❌ The battery at 5020 mAh is already worn out (if the 2020 model)

If you want a phone for calls, messengers, and easy tasks, the Redmi 9 can still work, but for games, photos, or long-term support, you'd better consider newer models like the Redmi 10 or the Redmi Note 11.

Date of production (serial number).

(2) Battery condition (capacity must be > 80%).

(3) The performance of the charge connector and the speakers.

(4) Firmware version (for custom assemblies).-->

FAQ: Answers to Frequent Questions About Redmi 9 Release Year

My Redmi 9 was bought in 2023 - is it a new model?
No, in 2023 Xiaomi didn't release the new Redmi 9. Chances are you sold the remaining stock from 2020-2021. Check the production date by serial number (see section above). If the year is listed as 2023 - that's a mistake or a hoax.
How to distinguish Redmi 9 2020 from Redmi 9 Activ 2021?
Main differences: Processor: Helio G80 (2020) vs Helio G35 (2021) Model number: M2004C3LGG (2020) vs M2101K7BI (2021) NFC: there is in 2020, no Infrared port in 2021: there is in 2020, no in 2021 Check these parameters in Settings β†’ About phone.
Can I upgrade Redmi 9 2020 to Android 12 or 13?
Officially, no. The latest version of Android for Redmi 9 is Android 11 (MIUI 12.5 or 13). Unofficial firmware (like LineageOS) may offer Android 12, but that will require unlocking the bootloader and risk building the phone.
Why is the Redmi 9 sold as a 2023 model in some stores?
It's a marketing ploy. It's actually unsold stocks. 2020-2021 The date of production of the phone remains original (check the serial number!) and these devices may have updated firmware (for example, the phone is still in stock, MIUI 14), But the iron is still old.
What battery to put in the Redmi 9 2020, if the original worn out?
The original battery has a label. BM4B or BM4C (5020 mAh, 3.85 V. Suitable analogues: πŸ”‹ Baseus BY-B5020 (5020 mAh, full compatibility) πŸ”‹ Xiaomi MBY09 (original, but expensive) πŸ”‹ Remax RAB-5020 (Budget option: When replacing, be sure to move the original NTC-Thermistor (temperature gauge) from an old battery!