Xiaomi’s lock screen is not just a barrier to outsiders, but also a useful space to post important information. Many users do not even realize that it can display the owner’s name, emergency contacts or arbitrary text – for example, a request to return the phone when lost, a feature that is especially relevant for those who often lose their gadgets or want to quickly provide their data in emergency situations.
Depending on the version of MIUI (12 to 15) and the smartphone model (Redmi Note 12, POCO X5, Xiaomi 13T, etc.), the setup process may vary slightly. In this article, we will discuss all the current methods, from standard settings to hidden features that are not written even in the official manuals, you will learn how to add a signature through the phone menu, using the Contacts app, as well as how to change the font and location of text on a locked screen.
Why do you need a signature on the lock screen?
At first glance, text on a locked screen seems like a useless feature, but it has several practical applications:
- 🔍 Quick identification. If you lose your phone, an honest person can contact you by seeing your name or number on the screen.
- 🚨 Emergency contacts: In some countries, the law requires the user to be listed on gadgets, making it easier to return the device.
- 📱 Personalization. You can add a motivational phrase, a meme, or even a meme. QR-code with a link to social networks (although this will require additional applications).
- 🔒 Thieves protection: A sign like "This phone is being tracked" can scare off intruders.
Interesting fact: in MIUI 14 and later, the signature on the lock screen is automatically duplicated in the Emergency Information menu (available by pressing Emergency Call), which means that even if the phone is unlocked, rescuers or police will be able to see your contact information without access to the main interface.
Method 1: Standard settings through the “lock screen”
This is the easiest method that works on all Xiaomi smartphones with MIUI 12 and above. Instructions are suitable for Redmi models, POCO and Xiaomi's flagship 12/13/14 lines.
- Open the Settings → Lock screen.
- Scroll down to the Lock Screen Signature section (some firmware may call Text on the Lock screen).
- Click on the field and enter the desired text (up to 50 characters).
- Save the changes – the signature will appear at the bottom of the screen.
Please note: in MIUI 15 So you can add emoji to your signature, for example, you can write «❤️ Please return it! +7 (XXX) XXX-XX-XX». However, too long text will be cropped – optimal length: 20-30 symbolism.
Make sure the text is readable (contrast font)
Check the display in the sun (does not merge with the background)
Indicate the current telephone number
Avoid personal information (passport details, address)-->
Method 2: Addition via “Emergency Information”
This method not only places text on the lock screen, but also makes it available through the Emergency Call menu, useful for those who want to provide advanced data (such as blood type, allergies or address).
Instructions:
- Go to Settings → About Phone → Emergency Information (or Owner Information in older versions).
- Click Edit the information.
- Fill in the fields: Name, Phone Number, Address (optional).
- Turn on the switch Show on the lock screen.
Important: This method only displays data when you swipe up (on some models, after clicking Emergency Call → Emergency Information).On the main lock screen, only the line "Click to view the owner's data" will be visible.
How do I add more contacts?
Method 3: Use of third-party applications (for advanced features)
If standard MIUI features aren't enough, you can use third-party utilities that allow you to:
- 🎨 Change the font, color and size of the text.
- 📍 Post the signature anywhere on the screen (not just at the bottom).
- 🖼️ Add images or QR-code.
- 🔄 Automatically change text on schedule.
The best applications for this task:
| Annex | Opportunities | Cons | Link (Google Play) |
|---|---|---|---|
| Lock Screen Widget | Text, widgets, weather, calendar | Advertising in the free version | Download |
| Hi Locker | Complete customization of the lock screen | A complex interface for beginners | Download |
| LokLok | Drawing on the lock screen, messaging | Registration is required | Download |
Important: Lock screen customization applications can conflict with MIUI system services, especially on smartphones with an unlocked bootloader.
💡
If after installing a third-party application, the lock screen began to slow down, try turning off animations in the developer settings (Settings → About Phone → MIUI version (click 7 times) → For developers → The scale of the window animation → Off.).
How to change the font and style of the signature?
In standard MIUI settings, you can only change the text itself, not the design.
For MIUI 14+ (with the theme of design):
- Go to Settings → Design → Fonts.
- Choose your favorite font (e.g. MiSans, Roboto or SF Pro).
- The signature on the lock screen will automatically adjust to the new style.
For older versions (manual method):
If your Xiaomi is running MIUI 12-13, you can use the iFont app:
- Download iFont from Google Play.
- Select a font from the collection (e.g. Google Sans or Product Sans).
- Press Set. → Apply.
- Reboot the phone.
Limitation: This method does not work on all models; some devices (e.g. POCO F4) require the bootloader to be unlocked to change the font.
💡
Changing the font through third-party apps can reset after the MIUI update. To avoid this, back up the theme in Settings → Design → My Themes.
Frequent problems and their solutions
Sometimes the signature on the lock screen doesn't show up or looks incorrect. Let's look at the typical errors and how to fix them.
⚠️ Note: If after the update MIUI The text is gone, check the language settings. In some regional firmware (e.g. India), the signature function is disabled by default.
| Problem. | Reason. | Decision |
|---|---|---|
| Text not displayed | Disabled display in settings | Check the settings → Lock screen → Signature |
| Text is cut off | Too long a line. | Cut to 30 characters or use abbreviations |
| Signature not updated | Cash system. | Restart your phone or clear the cache (Settings → Applications → App Management → System → Clear the cache) |
| Text merges with background | Low contrast | Change the wallpaper or font color through the theme of the design |
If none of these methods worked, try resetting the lock screen settings:
- Go to Settings → System and device → Resetting.
- Select Reset the lock screen settings.
- Confirm the action and re-configure the signature.
Security: What can and cannot be stated in the signature?
The signature on the lock screen is visible to anyone who picks up your phone, so it's important to balance utility with privacy.
- ✅ Can you say:
- ❌ You can't say:
⚠️ Attention: Fraudsters can use lock screen information for social engineering, such as your name and phone number, and then try to lure you into your accounts. Avoid unique combinations (such as a game nickname). + phone number).
Alternatively, create a separate virtual number (e.g., via Google Voice or Telegram) specifically for the lock screen, which will protect your primary contact from spam.