Xiaomi is slowing down and hanging: why it happens and how to fix it

Your Xiaomi has started to slow down when opening apps, hanging for a second while scrolling through the feed in social networks or even “think” for 10 seconds before performing simple actions, POCO F5 In 80% of cases, the fault is not “iron” malfunctions, but software failures, overloaded memory or incorrect system settings.

We analyzed user reports from forums. 4PDA, Mi Community and service centers to collect the latest ways to diagnose and eliminate lags - from basic (cleaning cache) to advanced (disabling) MIUI-optimization through ADB). There are no universal tips like “reboot your phone” in this article, only specific instructions explaining why each method works and which Xiaomi models it is suitable for.

If your smartphone is not just braked, and turns off when loaded, overheats to 50°C in plain or hangs on the logo MI — skip the first 4 sections and immediately go to the hardware malfunction block.

7 Reasons Why Xiaomi is Starting to Slow Down

Before you start "treatment", it is important to understand the source of the problem. Lags on Xiaomi fall into two categories:

• 🔄 Programming - related to MIUI, Apps or settings. Corrected without disassembling the phone.
• 🛠️ Hardware: battery wear, processor overheating, memory damage.

According to service centers, in 2023-2026, the leading causes of brakes:

Critical error MIUI 15: on some models (e.g. Xiaomi) 13T) after updating to version V15.0.4.0 And you get hanging when you use navigation gestures. V15.0.3.0 or disabling animation in the developer settings.

Quick Decisions: What to Do Right Now

If the lags are sudden, start with these steps: they do not require special knowledge and take no more than 5 minutes.

1. Restart in Safe Mode Hold the Power button → Press and hold "Switch off» → Confirm the transition to Safe Mode. This mode only works system applications. If the phone stopped braking, it is the fault of one of the applications you installed (see the section on applications).
2. Clearing the cache MIUI Go to Settings. → Annexes → Application management → Three points (⋮) → Clear the cache of all applications.This will delete temporary files that may slow down.
3. Turn off animation Activate Developer Mode (7 times click on "Version" MIUI» In Settings → About the phone, then in Settings → Additionally. → For developers, set: “Scope of window animations» → Off. “Scale of transition animation» → Off. “Duration of the animator» → Off.

Why does it work: MIUI It uses animations to smooth the interface, but on weak processors (such as the Snapdragon 660 in the Redmi Note 8 Pro), they create additional workload%.

Optimizing memory: how to free up space without loss

MIUI It starts to slow down when there's less than 10 percent of the total storage. For example, on the Redmi Note 11 with 128GB, this is the same thing. ~12GB But even if you have "enough" space, file fragmentation and junk data can slow things down.

How to check the actual state of memory:

1. Open the Settings → Memory.
2. Click on the graph "Occupied» → «Memory analysis».
3. Pay attention to the categories: 📁 System data (>15 GB) - sign of failure MIUI. 🎵 Media files (>30 GB – you need to clear the gallery cache. 📱 Annexes (>50 applications – too many background processes.

Effective ways to make room:

• 🧹 Clearing gallery cache: Open the Gallery → Albums. →.thumbnails folder (hidden) → These are temporary thumbnails that take up to 1-2 GB.
• 🗑️ Removing duplicates: Use the built-in MIUI annex Cleaning → «Duplicate files." On POCO X5 This frees up an average of 3-5 GB of users.
• ☁️ Transferring files to the cloud: Gallery → Settings → Backup enable autoboot to Mi Cloud or Google Photos (delete local copies after downloading).

💡

If the phone is slowing down when connecting to the PC in file transfer mode (MTP), Try an alternative protocol: C Settings → Additionally. → For developers, select “Configuration” USB» → PTP (photo).

⚠️ Note: Do not use third-party cleaners like Clean Master or CCleaner. MIUI, which causes system applications to fail (for example, Security or Themes stop working).

Brake applications: how to find and eliminate

According to Xiaomi, 60% of lags are caused by only 3-5 applications that:

• 🔄 Launched in the background without permission.
• 📱 Use geolocation or camera in the background.
• 🔋 Consumers. >10% battery charge per hour.

How to find the culprit:

1. Go to Settings → Battery and Performance → Battery Use.
2. Press on «⋮» → «Use of CPUs».
3. Sort by descending. Apps that occupy >15% of the processor in the simple – potential “brake».

Typical "candidates" for removal:

• 🎮 Games (Genshin Impact, PUBG Mobile – even after closing, the background processes are left behind.
• 📊 Social networks (Facebook, TikTok) – constantly synchronize data.
• 🛡️ Antiviruses (Avast, Dr.Web) – scan files in real time.
• 📱 Nova Launcher (Microsoft Launcher) – in conflict with the MIUI.

What to do:

1. Disable Autostart: Settings → Annexes → Application management → Select an application → Auto-start → Shut down.
2. Limit background activity: In the same app settings → «Battery» → Select “Restricted».
3. Freeze system applications (for advanced ones only!): ADB Disable unnecessary Xiaomi services: Adb shell pm disable-user --user 0 com.miui.analytics adb shell pm disable-user --user 0 com.xiaomi.midrop

Hidden settings MIUI speed up

MIUI It contains dozens of hidden settings that can be optimized to improve performance, most of which are available through the Developer Settings or the Settings. ADB.

Top.-5 speed-up:

1. Shutdown MIUI Optimization (removes unnecessary background processes): C → Additionally. → For developers, find “Disable Optimization” MIUI» Attention: After that, some features (like the Game Turbo) may not work properly.
2. Background Process Limitation: In the same developer settings, select “Background Process Limit» → «No background processes" (or "Maximum 2 processes"). This will reduce the load on RAM.
3. Change the I/O scheduler (for advanced): ADB do: adb shell setprop sys.io.scheduler cfq This will change the memory algorithm, which can speed up reading/write files by 10-15%.
4. Disabling Application Signature Verification: C Settings → Additionally. → Special facilities → Settings MIUI Turn off App Signature Check. This will speed up the installation. APK.
5. Reset graphics settings: If lags appear in games, reset the graphics settings: Settings → Display. → Graphic settings → Reset.

⚠️ Note: Change of parameters through ADB This can cause system instability. Before experimenting, back up your Settings. → Additionally. → Backup and reset.

💡

Shutdown «MIUI Optimization offers the greatest performance boost, but it can break some features (such as a dark theme in individual apps.

Brakes from the battery: how to check and fix

If your Xiaomi is older than 2 years, chances are that the lags are related to battery wear. When the capacity drops below 80%, the system begins to artificially limit performance to reduce battery load.

How to check the status of the battery:

1. Install the AccuBattery app (free on Google Play).
2. Charge your phone to 100% and wait for the app to collect data (you need 2-3 charging cycles).
3. Check the "Battery Health" option»: 🟢 90–100% — battery normal. 🟡 80–89% — Productivity limitations begin. 🔴 <80% — replacement.

What to do if the battery is worn out:

• 🔋 Disable battery optimization (temporary solution): C Settings → Battery and productivity → Battery settings turn off Adaptive Charging and Battery Optimization, which will return full performance, but reduce the time of operation.
• ⚡ Use Performance Mode: C Settings → Battery and productivity → Select Performance modes. This will turn off the restrictions, but the phone will run out faster.
• 🔄 Replace the battery (radical solution): The cost of replacing the service center Xiaomi — from 1,500 to 4000 rubles (depending on the model). ~1,000 rubles (battery) + glue).

⚠️ Warning: If the phone turns off at 20 to 30 percent charge, it is a sign of critical battery wear and continued use in this condition can cause the battery to bloat and damage to the motherboard.

Hardware problems: when to carry for repair

If none of the software methods worked, it might be the hardware problem.

• 🔥 Overheating (>50°C in plain, body hot to the touch).
• 🛑 Logo hangings MI cyclic.
• 🎮 Artifacts on the screen (stripes, flickering, "broken" pixels).
• 🔋 Instant shutdown at 10-50% charge.
• 📱 The touchscreen or buttons don’t work (even after the reboot).

Common Xiaomi hardware problems and their solutions:

How to check for hardware faults yourself:

1. Memory test: Install MemTest86 (If the test shows errors, the problem is in RAM or permanent memory.

⚠️ Warning: If your Xiaomi doesn't turn on after falling or getting moisture, don't try to charge it! this can cause a short circuit.

Frequent questions about brakes on Xiaomi