Font problems on Xiaomi smartphones are one of the most common complaints users have had since the MIUI update or failed customization experiments, whether the letters suddenly became blurry, as if with low resolution, the font size was lost to microscopic, or the system stopped displaying Cyrillic at all. In this article, we will examine all possible causes and methods of recovery, from basic settings to technical manipulations with firmware.
It's important to understand that font failure is rarely a hardware problem, and 95% of the time, it's a software bug that's related to:
- π Update MIUI (Especially when switching between major versions, for example, from 12 to 14)
- π¨ Install custom fonts through themes or third-party applications such as iFont
- π± Failure of system files after cleaning the cache or incorrect firmware rollback
- π§ Changes in parameters DPI (pixel density through the developer
Before you start taking drastic measures like factory reset, check out the simple solutions β they work most of the time.
1. Check the basic font settings in MIUI
Start with the obvious: maybe the font didnβt go astray, but simply changed its settings in the system settings. In Xiaomi, the Settings section β Screen β Text Size and Display section is responsible for this.
Here's what we need to do:
- Open Settings and go to the Screen.
- Select text size and display.
- Check the font size slider β it should stand on the average value (usually the second mark on the left).
- Below, find the Font Style option and select Default (or Mi Sans for new models).
Check the font size slider
Select the default or "Mi Sans" style
Reboot the phone-->
If the font didn't recover after these manipulations, the problem is deeper, perhaps the theme system files were lost or there was a conflict after the update.
β οΈ Note: On some models (Redmi Note 10 Pro, POCO X3 Pro) after changing the font style, reboot is required. If the changes do not apply immediately, turn off and turn on the phone again.
2. Resetting themes and fonts to factory
If you installed custom themes through Mi Theme Store or third-party apps, they could overwrite system fonts, in which case resetting themes will help:
Instructions:
- Go to Settings β Theme.
- Click on the three dots in the top right corner and select Reset to factory themes.
- Confirm the action and wait for the process to be completed.
- Reset the device.
If this method did not work, try to remove the cache of the Topics app:
- Open Settings β Applications β Application Management.
- Find themes and click on it.
- Select Warehouse. β Clear the cache.
- Go back to the Topic section and apply the standard theme again.
What if the resetting of themes did not help?
On some firmware (MIUI 13 and older), after resetting themes, additional font settings may be required in Settings β Additional β Special Features β Font size.
3. font recovery via ADB (for advanced users)
If standard methods donβt help, and you donβt want to reset your phone to factory settings, you can try to restore fonts through ADB (Android Debug Bridge), which is suitable for users who previously changed system fonts through iFont or root rights.
You'll need:
- π» Computer with installed ADB Tools
- π USB-cable (preferably original)
- π± Included debugging by USB on the phone (Settings) β The phone. β Version. MIUI β 7 times press to activate the developer mode, then Settings β Additionally. β For developers β Debugging by USB)
Instructions:
adb shell
su
mount -o rw,remount /system
rm -rf /system/fonts/*
cp -r /system/fonts.bak/* /system/fonts/
chmod 644 /system/fonts/*
rebootIf you donβt have a backup font (/system/fonts.bak/) you can download the original fonts for your Xiaomi model from 4PDA or XDA Developers forums and download them manually.
β οΈ Attention: Wrong commands ADB If you're not sure what you're doing, skip this section and go to reset via Recovery.
I tried it 1-2 times.
No, but I want to learn.
No, I don't plan on.-->
4. Fix font problems after MIUI update
One of the most common causes of font distortion is incorrect firmware updates, which can occur if:
- π The update was interrupted due to a dead battery or poor internet connection.
- π₯ Installed "raw" beta version MIUI
- π§ There was a conflict between old and new system files.
Decisions:
| Problem. | Recovery method | Applicable to MIUI versions |
|---|---|---|
| The font has become "pixelated." | Cleaning the cache in Recovery (Wipe Cache) | 12, 13, 14 |
| Some symbols (Cyrillic, hieroglyphics) are missing. | Reinstall firmware via Fastboot without data loss | 13, 14 |
| Font too small/large, not regulated | Reset DPI settings via ADB: adb shell wm density reset | All versions. |
| System applications display the font normally, but third-party applications do not. | Cleaning up the data of the Google Play Services app | 12, 13, 14 |
If the problem appears immediately after the update, try retracing to the previous version of MIUI via Recovery:
- Download the full firmware package for your model from the official Xiaomi website.
- Rename the file to update.zip and place it in the root of internal memory.
- Press Volume Up + Power to enter Recovery.
- Select Install update.zip and wait until it is completed.
π‘
A rollback to the previous version of MIUI will delete all data if you havenβt used the backup function in Settings β Memory β Backup.
5. Full reset to factory settings (last resort)
If none of these methods work, the most radical way is hard reset, which will bring the phone back to its original state by deleting all the data, including apps, photos and settings.
How to reset:
- Back up important data through Settings β Memory β Backup or manually copy files to your PC.
- Go to Settings β About the phone β Reset settings.
- Choose to erase all data and confirm the action.
- After restarting, set your phone as new.
Alternative method (if the phone does not turn on or hovers on the logo):
- Turn off the device.
- Press Volume Up + Power to enter Recovery.
- Choose Wipe Data β Wipe All Data.
- Confirm the action and wait for the completion.
β οΈ Note: On some models (Xiaomi) 12T, Redmi K50) After the reset, you may need to re-assign your Mi Account. Make sure you remember your login and password!
π‘
If the font does not display correctly after reset, check firmware integrity through the Mi Flash Tool. You may need to completely flash it in Clean All mode.
6. Restore font on specific Xiaomi models
Some Xiaomi models have unique font bugs. Let's take a look at the most problematic ones:
Redmi Note 9/10/11 series
These devices often have a problem with "blurred font after upgrading to MIUI 13."
- π§ Turn it off. MIUI Optimization in the Developer Settings (Settings) β Additionally. β For developers β Turn off optimization MIUI).
- π Reboot the phone.
- π¨ Apply the standard Mi Sans theme to the screen settings.
POCO F3/F4/X3/X4
On POCO devices, the font can break after installing custom firmware such as Pixel Experience or LineageOS.
- π₯ Fastboot Firmware via Mi Flash Tool.
- π§ Use the team. ADB discharged DPI: adb shell wm density 440 (value may vary depending on model).
Xiaomi 12/13/14 series
On flagships, the problem is usually a conflict of system applications.
- π Reverse to stable version MIUI recover.
- π¦ Removing updates for Google Play Services (Settings) β Annexes β Google Play Services β Three points. β Remove updates).
7. Preventing font problems in the future
To avoid repeated font failures, follow these guidelines:
- π« Do not install custom fonts from unverified sources.
- π Always make a backup before updating MIUI (Settings β Memory. β Backup copy).
- π₯ Download firmware only from the official Xiaomi website.
- π§ Don't change the settings. DPI unnecessarily (this may cause incorrect display of the interface).
- π± Clean the cache of system applications (Themes, Launcher, Google Play Services) regularly).
If you experiment with firmware often, install TWRP Recovery and backup /system before any changes, which will allow you to quickly restore the phone in the event of a crash.
π‘
On bootloader devices, the risk of damaging fonts is 3 times higher when customized. Always check the compatibility of the modifications with your model!