How to change the language on the lock screen Xiaomi Redmi 9: 3 proven ways

The lock screen of the Xiaomi Redmi 9 is the first thing you see when you turn on a smartphone, but sometimes its interface is displayed in an unfamiliar language. This can happen after updating the firmware, resetting the settings or buying the device from the Russified version to the imported one. Unlike the main menu, where the language changes in two clicks, the lock screen obeys other rules — its settings are often hidden deep in the system parameters or even blocked by the manufacturer.

In this article, we will discuss three working methods for changing the lock screen language: from standard MIUI settings to bypassing restrictions through the engineering menu. We will pay special attention to the nuances of Global, China and EEA firmware, because the availability of certain features depends on the version. If your Redmi 9 is stuck in Chinese, Spanish or another language, follow the instructions below to return the usual interface without risking damage to the system.

Why is the lock screen language different from the system language?

Many users are faced with a paradoxical situation: the smartphone settings are Russian, and the lock screen persistently shows Chinese characters or Latin alphabet, the reason lies in the architecture of MIUI:

• 📱 Separation of language packets: Lockscreen and main interface (System) UI) They use different localization files. Some firmware updates them separately.
• 🔄 Update errors when switching from one version MIUI Language files can be “downloaded” to another (for example, from 12.5 to 13) language files, especially if the update is interrupted.
• 🌍 Regional restrictions: Firmware for China (China) ROM) Often lack full multilingual support on the lock screen, even if the system language is changed.

Another nuance is security, because manufacturers deliberately restrict editing of the lock screen so that attackers can't change the text of notifications or unlock buttons, so there's no direct language change settings, but there are workarounds.

Method 1: Change the language through basic MIUI settings

The easiest method is to synchronize the lock screen language with the system one, which works on most Global and EEA firmware, but may not work on China ROM without first unlocking the bootloader.

1. Open the settings (cog icon).
2. Go to the section Additional → Language and Input → Language.
3. Select the language you want (e.g. Russian) and confirm the change.
4. Reboot the device: Press the power button and select Reboot.

After you restart, check the lock screen. If the language hasn't changed, your firmware is using separate settings for Lockscreen, in which case move on to the next way.

Method 2: Reset the lock screen settings (without data loss)

If the system language change didn’t work, try resetting the lock screen settings, which doesn’t affect user data, but will return all Lockscreen settings to factory settings (including wallpaper, notifications, and watch style).

1. Open the Settings → Lock screen.
2. Scroll down and find Reset Lockscreen settings (or Reset Lockscreen settings).
3. Confirm the action. The system will request. PIN-code.
4. After resetting, restart your phone and check your tongue.

If this item is not on the menu, then your version of MIUI does not support partial reset, in which case there are two options: update the firmware or use the engineering menu (mode 3).

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Before resetting the lock screen, take a screenshot of the current settings (wallpaper, widgets, watch style) and you can manually restore them after the procedure.

Method 3: Manual language change through engineering menu (for advanced)

This method requires access to an engineering menu (Engineer Mode) and works even on China ROM. It is suitable if the first two methods do not work, but has risks: improper actions can lead to a failure of the interface.

1. Open the Phone app and type the combination: ##4636## Some firmware may require you to type: ##36446337###
2. In the menu that opens, select Language and input settings (or similar).
3. Find the Lockscreen language and change it to the right one.
4. Save the changes and restart the device.

If the engineering menu is not available or there is no lock screen option, try an alternative path:

• 🔧 Install the app MTK Engineering Mode (for MediaTek processors) or Qualcomm Engineer Mode (for Snapdragon) from Google Play.
• 🔍 In the app, find the Language Settings or Miscellaneous section.
• 📲 Change the parameter. lockscreen_lang the code of the desired language (for example, ru for Russian).

⚠️ Warning: Changing the settings in the engineering menu can lead to unstable operation of the interface. If after changing the language, the lock screen no longer displays correctly, perform a soft reset (press the power button for 15 seconds).

Compatibility table with MIUI versions

Not all methods work on any firmware, and the following is the compatibility table for Xiaomi Redmi 9 (model M2003J15SC):

On MIUI China firmware (e.g. V12.5.2.0.RJCCNXM), it is not possible to change the lock screen language through standard settings - it is necessary to use an engineering menu or install a custom firmware.

What do you do if nothing helps?

If all of these methods are useless, radical measures remain:

1. Update your firmware. Install the latest version of MIUI through Settings → About Phone → System Update. New builds often fix localization errors.
2. Install custom firmware. Firmware like Xiaomi.eu or PixelExperience offers full Russification, including lock screen. ⚠️ Warning: Installing unofficial software requires unlocking the bootloader and may be unwarranted.Before the procedure, check the guides for Redmi 9 on the forums 4PDA or XDA Developers.
3. Reset to factory settings. Last measure: Settings → About phone → Reset. Delete all data, but return the lock screen language to factory (depending on the firmware region).

If you are not ready for the risks of custom firmware, contact the Xiaomi service center. Official centers can reflash the device on the Global ROM with full localization (paid, but safe).

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Before drastic measures (reset, firmware), always back up via Mi Cloud or locally on your PC, which will save contacts, photos and application settings.

FAQ: Frequent questions about changing language to Redmi 9