Xiaomi Phone Stunned: Reasons and Solutions (2026)

Why Xiaomi is starting to glittle and what to do about it

Your Xiaomi suddenly slows down, spontaneously reboots, or stops responding to touches?Symptoms like this can appear on both the budget Redmi Note and Mi 13 Ultra flagships, ranging from software failures to hardware malfunctions — and 80 percent of the time, the problem can be fixed without going to the service center.

In this article, we will analyze all possible scenarios: from basic actions (reboot, cache cleaning) to complex manipulations (firmware through Fastboot, replacement of the display plume). Particular attention will be paid to the models of 2022-2026 with Snapdragon 8 Gen 2/3 and Dimensity 9000+ processors, where glitches are often associated with overheating or improper operation of MIUI 14/15. If your phone is still on warranty, at the end of the article there is a checklist for how to avoid losing it when repairing yourself.

First steps: diagnosis and simple solutions

Before you disassemble your phone or reset your settings, do basic checks that take no more than 5 minutes, but help rule out 50% of possible causes:

• 🔄 Forced reboot: Press the power button for 10-15 seconds (in some models, simultaneously with the volume button) and this will work even if the screen is not responding.
• 🔋 Charging check. Connect the original cable to another power supply (preferably) 30W+ If the phone is not charging, the problem may be the power controller.
• 📱 Testing on another account: temporarily deleting your Mi Account or logging in under a different profile will help identify conflicts with data synchronization.
• 🌡️ Temperature control. Use the app. AIDA64 or CPU Monitor to check if the processor is overheating (normal to 45)°C to the plain).

If you've had a glitch after the reboot, but your phone is responding to presses, go to clean up the system. If the screen is black or stuck on the MI logo, read the emergency modes section.

Cleaning the system: cache, background processes and viruses

Clogged memory and conflicting applications are the most common cause of lags, and let's start with safe methods that won't delete your data:

1. Cache Clearing: Go to Settings → Applications → Application Management, select the All tab and sort by cache size. Delete data for applications that are over 500MB long (especially Google Play Services, MIUI Gallery, instant messengers).
2. Autoboot Optimization: In Settings → Battery → Battery Mode, turn off autostart for unnecessary applications. Pay attention to programs with administrator rights (antivirus, VPN).
3. Virus Check: Use Malwarebytes or the built-in scanner in MIUI Security. Pay attention to /Download and /DCIM folders – malicious APKs often penetrate there.

If your phone is still slowing down after cleaning, try rolling back updates for problematic apps (the same App Management menu has a button called Remove Updates) and many POCO F4 users, for example, complain of glitches after upgrading the Google Play Store to version 35.XX.

Remove the cache of system applications

Disabled Autoboot for 10+ Apps

Checked the processor temperature.

I made a backup copy in Mi Cloud.

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Emergency modes: Recovery and Fastboot

If the phone doesn't turn on, freezes on the logo or reboots cyclically, you'll need special modes, and their launch varies depending on the model:

In Recovery mode, select Wipe cache partition or Wipe data/factory reset. In Fastboot, you can refashion your phone via your PC using the Mi Flash Tool (instructions in the next section).

⚠️ Note: Reset via Wipe data will delete all data, including photos and messages. If the phone was previously linked to the Mi Account, after the reset you will need to enter a login and password - otherwise the device will be blocked (Factory Reset Protection protection).

Phone Flashing: When and How to Do It

Flashing helps if glitches are caused by system files being damaged (for example, after a failed air update).For Xiaomi, there are two official ways:

1. Through Recovery (saves data): Download the firmware for your model from en.miui.com (select the Recovery ROM version). Move the.zip file to the root of the phone's memory, then in Recovery mode select Install update.zip.
2. Using Fastboot (full reinstallation): You need Fastboot ROM firmware and Mi Flash Tool on your PC. Connect your phone in Fastboot mode, select the firmware file in the program and press Flash. The process will take 5-10 minutes. fastboot flash boot.img fastboot flash system.img

For models with a locked bootloader (Redmi Note 11 and later) before the firmware via Fastboot, you need to unlock Bootloader through the official Mi Unlock Tool application. This takes up to 72 hours of waiting (Xiaomi policy).

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If the phone doesn’t turn on after firmware, try repeating the process with the antivirus turned off on your PC – sometimes it blocks firmware files.

Hardware malfunctions: how to recognize and what to do

If the software didn't work, the problem could be the iron, and here are the typical symptoms and their causes:

• 🔥 Overheating and shutdown: malfunction of the battery, thermopastes on the processor or power controller. POCO F3 after 1.5-2 years of operation.
• 📵 Lack of network: damage to the antenna module or slot SIM-Check if the card trays are bent.
• 🖥️ Artifacts on the screen: detachment of the display plume (typical for the Redmi Note 10 Pro after falls) or failure of the graphics chip.
• 🔋 Fast discharge: battery wear (check in the AIDA64 — Less than 80% of the nominal capacity requires replacement).

To diagnose hardware problems, use test modes:

1. Enter the dial code ##4636## → select "Equipment Testing".
2. To check the display: ##223## (color and sensor test).
3. For the camera test: ##0*## (on some models).

⚠️ Warning: If the phone falls into the water or has been severely impacted, do not try to disassemble it yourself - corrosion on the board can lead to a short circuit.

Frequent glitches on specific Xiaomi models

Some models have typical problems that are worth knowing about:

For POCO X3 Pro and Redmi K40 actual problem with “dead pixels” after upgrading to Android 12 – in this case will only help the rollback of the firmware or replacement screen under warranty.

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Before buying used Xiaomi, check the model on the Kimovil website - there is a database of typical malfunctions for each series.

When to contact the service: signs of serious breakdowns

If you have exhausted all the software methods and your phone is still:

• ⚡ It does not turn on even after the firmware is running through Fastboot;
• 🔥 Overheating to 60.°C+ down-to-earth;
• 💧 Has traces of oxidation on the board (seen through a magnifying glass);
• 📶 Lost the network completely (even after being replaced) SIM-map);
• 🔋 Discharges by 50% in 1-2 hours without load,

- so the problem is hardware, and without professional repair can not do.

Cost of repair in official Xiaomi services (2026):

• Battery replacement: 2,500–4,000 ₽;
• Display plume repair: 3,000–6,000 ₽;
• Replacement of motherboard: 10,000-25,000 ₽ (model-wise);
• Oxidation cleansing: 1,500–3,000 ₽.

If the phone is warranty, don't disassemble it yourself - this will void warranty obligations. To check the status of the warranty, type IMEI at mi.com/verify.

FAQ: Answers to Frequent Questions