How to remove the signature on the lock screen Xiaomi: from standard settings to ADB

The lock screen on Xiaomi smartphones is not only data protection, but also the owner’s business card. However, a standard or accidentally added signature (such as a name, phone number or advertising slogan) can be annoying, especially if it takes up half the display or interferes with the perception of wallpaper. Depending on the version of the MIUI and the device model (Redmi Note 12, POCO X5, Xiaomi 13T, etc.), the ways to remove this inscription vary from basic settings to working with ADB.

In this article, we will discuss all the current methods, including those that are not documented in the official Xiaomi help, but work on 90% of devices with MIUI 12-14. You will learn how to remove the signature through the phone menu, the theme editor, and what to do if standard methods do not work (for example, due to the limitations of corporate firmware).

Why does the lock screen have a signature and can it be removed?

The signature on the Xiaomi lock screen may appear for several reasons:

• 📱 Standard setting MIUI: When you first turn on your smartphone, it suggests adding the owner's name or contact to an emergency call, and many users agree, not realizing that this information will be difficult to remove later.
• 🔧 Update: After upgrading to the new version MIUI (For example, from 13 to 14), the lock screen settings may be reset to factory ones, including returning the old signature.
• 🎨 Custom Theme Installation: Some themes from the Mi Theme Store automatically add watermarks or captions to the lock screen.
• 🏢 Corporate Devices: Smartphones issued by the company may have a compulsory signature with a logo or contacts IT-division.

Can you remove this? Yes, 99 percent of the time -- but the way it's done depends on how it's added, like, you can remove a signature from a standard setting in 2 clicks, but you have to remove a corporate or firmware theme through ADB or system file editing, and we'll look at all the options below, from simple to complex.

Method 1: Delete signatures through standard MIUI settings

If you or a previous owner added a signature through the settings menu, it is easiest to remove it, which works on all Xiaomi, Redmi and POCO devices with MIUI 12-14, including the latest updates from 2026.

Instructions:

1. Open Settings (the gear icon on the main screen).
2. Go to Lock Screen (or Lock and Protect on some models).
3. Select the "Signature" item on the lock screen (may be called the Owner's Text or Owner's Information).
4. Delete all text in the input field and click Save.
5. Restart the device (required!) to make the changes effective.

If there is no signature on the lock screen, then the caption is added in another way (for example, through a topic or corporate policy).

Method 2: Resetting themes and wallpapers to standard

Sometimes the signature on the lock screen appears after you install a custom theme from the Mi Theme Store, in which case it can't be removed through the settings, you need to reset the theme to the factory. Here's how to do it:

Steps:

1. Open the Themes app (icon with brush).
2. Go to the My Topic (or Installed) section.
3. Find an active topic and click on three dots (⋮) near her name.
4. Choose Remove or Reset.
5. After removing the theme, go to Settings → Lock Screen → Wallpaper and select a standard image.

If you have a signature left after resetting the theme, check whether it is installed through a system editor (method 3) or corporate policy (method 5). Also pay attention to lock screen widgets – sometimes they simulate a signature (for example, a weather widget with text).

Method 3: Editing a signature through hidden settings (for advanced)

On some Xiaomi firmware (especially POCO and Black Shark), the lock screen signature is stored in hidden system settings, and to remove it, you will need access to an engineering menu or a special code.

Option 1: Through code #4636##

1. Open the Phone app and enter the combination ##4636##.
2. In the menu that appears, select Phone Information.
3. Scroll down and find the Lockscreen Signature (or similar) item.
4. Delete the text in this field and save the changes.

Option 2: Through ADB (no root rights)

If the first method didn’t work, use Android Debug Bridge.

adb shell settings put global lock_screen_owner_info ""


adb shell settings put secure lock_screen_owner_info ""

Once you have completed the commands, restart the device. This method works on MIUI 13/14, but may not work on older versions (MIUI 11 and below) or on devices with OEM lock.

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If ADB-commands do not apply, check if debugging is included USB In Settings → The phone. → Version. MIUI (Press 7 times on "Version" MIUI", Then go back to the extra. → For developers).

Method 4: Delete signatures through system file editing (root required)

If a signature is added at the firmware level (e.g., in corporate devices or after installing custom ROM), it can only be removed by editing system files, a method that requires root rights and is suitable for advanced users.

Instructions:

1. Install a file manager with root support, such as Root Explorer or FX File Explorer.
2. Go to /system/media/theme/default/.
3. Find files with names lockscreen_owner_info.xml or lockwallpaper (may vary depending on firmware).
4. Open the file in the text editor and delete the signature string (usually it looks like a text editor). <string name="owner_info">Text</string>).
5. Save the changes, set the rights 644 (rw-r--r---) and restart the device.

⚠️ Warning: Incorrect editing of system files can lead to bootloop ( looped download!

Method 5: Bypassing corporate restrictions (for work phones)

If the smartphone was issued by the company and the lock screen displays a logo or contacts IT-I'm not going to get this signature removed by standard methods:

• 🔓 Factory reset: Deletes all data, including corporate policies. But once connected to the work network, the signature can return.
• 🛠️ Fastboot Reflash: Install Clean MIUI custom-made ROM (For example, Pixel Experience will remove all restrictions, but will require unlocking the bootloader.
• 📧 Appeal to IT-Service: Sometimes administrators may remove signatures at the request of an employee (unless this is contrary to security policy).

⚠️ Note: Flashing your enterprise-bound device may result in your Mi Account being blocked (if Find Device is enabled). → Xiaomi account → Delete the account.

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On Android Enterprise devices, you can’t delete your signature without administrator permission, so the only way out is to use your smartphone in “personal” mode (if supported).

What do you do if nothing helps?

If you’ve tried all the ways, but the signature on the Xiaomi lock screen is still there, the following reasons are possible:

• 🔒 bootloader blocked: On new devices (released after 2022), Xiaomi blocks system files from being changed without official unlocking.The solution is to apply for unlock via the official website.
• 📱 Hardware signature: On some models (for example, Xiaomi Mix Fold 3), the signature is sewn into the display firmware. EDL-Mode (requires an authorized Xiaomi account).
• 🐞 Firmware bug: In rare cases, the signature is left because of an error in the MIUI. The solution is to install a newer or, conversely, an older version of the firmware.

If you are facing one of these problems, we recommend:

1. Contact the Xiaomi service center (especially if the device is warranty).
2. Search for solutions on profile forums such as 4PDA or XDA Developers by specifying the exact device model and MIUI version.
3. Temporary workaround: install an alternative launcher (like Nova Launcher) and use a lock widget that overlaps the standard screen.

FAQ: Frequent questions about signatures on Xiaomi lock screen