System interface does not respond to Android: how to fix on Xiaomi, Redmi and POCO

You picked up a Xiaomi, Redmi or POCO smartphone, but the screen suddenly stopped responding to touch, the buttons didn't work, and the system "hang" on one window? This problem is familiar to many users of Android devices - especially after updates, installing dubious applications or mechanical damage. 80% of the time, the cause is overload of RAM, software conflict or hardware failure.

Unlike the iPhone, where the “hang” interface is often solved by a forced reboot, Xiaomi smartphones require a more flexible approach. Here it is important to understand that if the screen responds to touch partially (for example, only the top of the display works), the problem is more likely to be the touchscreen; If the system is completely frozen, it's the software or the hardware. In this article, we'll look at both scenarios, from simple solutions to radical ones, with firmware in mind. MIUI and hardware platform Qualcomm/Mediatek.

1. Forced reset - the first step

If the interface is not fully responsive (it doesn’t respond to touch or buttons), start with a hard restart. It’s data-safe and often solves the problem of temporary freezes. There are two ways to do this on Xiaomi smartphones:

• 🔄 Classic method: Press the Power button for 10-15 seconds until the screen goes out and the logo appears MI. On models with Qualcomm Snapdragon (for example, Xiaomi) 12T or POCO F4) It may take up to 20 seconds.
• 🔋 Alternative for new models: simultaneously clamping down the power + Increase volume by 8-10 seconds, and it will work even if the power button is damaged.

After you restart, check if the system has recovered. If the problem recurs, move on to the next steps. Importantly, if the smartphone is 0% low and does not respond to the buttons, first connect it to charging for 10-15 minutes, and then try to restart.

2. Touchscreen check: hardware or software problem?

If the screen is partially responsive to touch (for example, only half the display is running or gestures are recognized with a delay), either the touchscreen or the drivers are to blame.

1. Connect your smartphone to your PC via USB and try to control it with your mouse (you need USB debugging mode enabled). If the cursor moves but the touch doesn't work, the problem is the touchscreen.
2. Run the display test through the engineering menu: dial in the phone app ##6484## (some Redmi models run ##4636##). Select Touch Test and check the response to touch.

If the test shows non-functioning areas, the reasons may be:

• 🛠️ Mechanical damage: cracks on the screen, moisture or a strain of the plume after a fall, in which case only a replacement touch screen will help.
• 🖥️ Calibration failure: after update MIUI or reset. Solved through the settings. → Display. → Calibration of the touch screen (not available on all models).
• 🦠 Virus or application conflict: Some programs (such as launchers or games) may block touch processing. Try downloading into Safe Mode (see Section 4).

3. Cleaning the cache and system data

Interface freezes are often caused by overflowing cache or corrupted system application data, and MIUI has two levels of cleanup:

To clean Dalvik Cache (relevant for Xiaomi on Android 10+):

1. Turn off your smartphone.
2. Press Power + Volume Up to Enter Recovery.
3. Select Wipe & Reset → Wipe Dalvik Cache (control – volume and power buttons).
4. Reset the device.

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If after cleaning the cache, the system began to work slower, do not panic - this is temporary. Android reassembles the cache for commonly used applications within 1-2 days.

4. Download in Safe Mode: Diagnosing Application Conflicts

Safe Mode allows you to download MIUI without third-party applications, and if it's a normal mode, the problem is with one of the programs you installed.

1. Turn off your smartphone.
2. Press the Power button and hold it until the MI logo appears.
3. Once the logo appears, release Power and immediately press Volume Down, holding it until full load.

In the lower right corner of the screen, you'll see the Safe Mode message.

• 📱 Pay special attention to launchers (Nova Launcher, Hyperion), optimizers (Clean Master) and overlay games (Genshin Impact, PUBG Mobile).

Remove the last 3 installed applications

Check out the work without a launcher (use the standard MIUI Launcher)

Disable Administrator Rights from Optimizers and Antiviruses

View the error log in Settings → Memory → Application log-->

5. Reset settings via Recovery or Fastboot

If the previous methods didn't work, and the interface still doesn't respond, you'll have to resort to resetting. Xiaomi has two ways:

Method 1: Recovery (without loss of data in /sdcard)

1. Enter Recovery (Power + Volume Up buttons).
2. Select Wipe Data → Wipe All Data (on some firmwares – Factory Reset).
3. Confirm the action and wait for the completion.

Method 2: Fastboot (if Recovery is not available)

You will need a PC with ADB/Fastboot drivers installed and an unlocked bootloader (on new Xiaomi models, the bootloader is blocked by default).

fastboot devices # Check the connection


fastboot erase userdata # Clearing up user data




fastboot erase cache #Cache cleanup




fastboot reboot #Reboot

Note: Fastboot reset will delete all data, including files on internal memory. If you have File-Based Encryption enabled, you may need to enter a password from your Mi Account after reset.

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If the system freezes again after reset, the problem is most likely in the firmware or hardware (for example, damaged flash memory).

6. flashing through the Mi Flash Tool (extreme case)

If the reset doesn't work, you just have to reflash the smartphone, which is a radical method that will bring the device back to the factory state.

• 🖥️ Windows computer with Mi Flash Tool installed.
• 📄 Official firmware for your model (download from xiaomifirmwareupdater.com).
• 🔓 Unlocked loader (instructions for en.miui.com/unlock).

Step-by-step:

1. Unpack the firmware in a folder without Cyrillic characters (for example, C:\MIUI\fastboot_rom).
2. Launch the Mi Flash Tool, connect the switched off smartphone in Fastboot mode (Power buttons + Volume decrease).
3. In the program, select a firmware folder and press Refresh. The device must be determined.
4. Press Flash and wait until it is completed (the process will take 5-10 minutes).

Warning:

⚠️ Note: Firmware of unofficial (custom) versions MIUI Android can lead to a lockdown. IMEI or problems with Google Services. Use only official builds for your model!

7. Hardware malfunctions: when you need a service center

If none of the software methods worked, the problem is probably the hardware. Typical hardware reasons for the interface freezes on Xiaomi:

• 🔋 Faulty battery: the bloated battery presses on the motherboard, causing a malfunction of the power controller.
• 💾 Damaged flash memory: If the smartphone is constantly rebooting or “flying” into the Fastboot, the chip may be worn out eMMC/UFS. Diagnosed through ADB Adb shell dumpsys diskstats.
• 📱 Contact oxidation: after moisture or prolonged use in humid climates, visually check the charging connector and the area around the buttons.

To diagnose hardware problems:

1. Connect your smartphone to your PC and check logs through ADB Logcat (adb logcat | grep -i "error").
2. Use test software like CPU-Z or AIDA64 to check the temperature and stability of components.
3. If you suspect memory problems, run the test through MemTest86 (required OTG-wire-drive).

When to contact the service:

⚠️ Note: if the smartphone does not turn on even after firmware, does not respond to charging (no indication) or overheats when turned off - self-repair can aggravate the situation. mi.com/ru/service).

FAQ: Frequent questions about the interface freezes on Xiaomi