Why Xiaomi phone is lying down and how to fix it: expert analysis

The situation when the once-quick Xiaomi suddenly starts to run slower, open applications with a delay or even freeze at the most inopportune moment is familiar to many owners. This is not always a sign that it is time to buy a new gadget; often the problem lies in software conflicts or misuse of the MIUI system. Understanding the root of the problem is already half the success in restoring performance.

In this article, we will take a closer look at how shells from a Chinese manufacturer work, explain why the accumulated digital garbage has such a big impact on CPU performance, and give step-by-step optimization instructions.

Before we start taking radical steps like factory resets, we need to do a thorough diagnostics, look at both the standard system tools and the hidden engineering menus available to every user, and a competent approach will allow the device to return to its former sharpness without losing personal data.

Diagnosis: why the smartphone began to slow down

The first step should always be to identify the specific culprit of the erratic work. Often users blame "hardware" when in fact the system suffers from a lack of RAM or overheating. Task Manager in MIUI allows you to see which processes are consuming resources right now. If you see that background services occupy 80-90% of memory, the system will work with delays.

One of the common causes is overheating, and when the CPU temperature reaches critical temperatures, the trottling mechanism, the forced frequency reduction mechanism, is activated to protect against combustion, at which point the phone can lie down even when performing simple tasks, such as typing in a messenger.

⚠️ Note: If the case of the smartphone is very hot in the upper part (where the processor is located) even without active action, this may indicate a malfunction of the battery or motherboard.

It's also worth checking the state of the drive. Flash memory tends to degrade when filled by more than 85-90%. When the free space runs out, the speed of writing and reading data drops by several times, leading to micro-freezes of the interface. Check how much space is left in the Memory section.

Basic optimization of MIUI system

Start with the built-in tools that Xiaomi developers have specifically implemented to maintain the system. The standard Security app is not just an antivirus, but a powerful harvester to manage resources. Regularly running the Cleanup feature helps remove cache that inflates over time.

Special attention should be paid to the function "Accelerate" which forcibly closes the background processes, freeing up RAM, but it is worth remembering that aggressive operation of this function can lead to restarting of important applications, such as the navigator or messengers, which, on the contrary, consumes the battery.

Autoboot management is an important step. Many applications prescribe themselves to start-up, starting immediately after the screen is turned on, which puts a strain on the processor in the very first seconds of use. Follow the Settings → Applications → Autoboot and leave only the services you really need on all the time.

Another hidden reserve is to turn off animations. Visual effects make the interface smooth, but on older models they can create a sense of "viscosity." Going to developer mode allows you to shorten the duration of animations or turn them off completely, which subjectively speeds up the interface.

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To go to the developer menu, go to About Phone and quickly click on MIUI Version 7 times. After that, the "Developers" option will appear in the advanced settings, where you can adjust the animation scale.

Memory cleaning and cache work

A filled internal drive is the number one enemy of Android performance. It uses some of the free memory for temporary files and virtual swaps. When there is critically little space, the phone starts to run unstable. Delete old screenshots, instant messenger videos and unused apps.

A special category of “junk” is social network data. Telegram, WhatsApp and Viber have a habit of storing all received media files in the memory of the device, cleaning the cache of these applications through settings can free up several gigabytes of space, which will significantly affect the speed of work.

Use the Deep Clean tool in a standard security application, which can find duplicate photos, old APK installation packages, and remnants of deleted programs. Don't ignore the Recycle Bin section of the gallery, because deleted files disappear from the disk, freeing up space.

If you use a microSD card, check it. Cheap cards lose reading speed over time, which can cause the entire system to freeze as the OS tries to read data from a slow medium. Try to remove the card and check the phone without it.

Hidden settings and developer mode

For advanced users, the MIUI shell and basic Android provide access to deep system settings. By activating developer mode, you gain control over processes that are usually hidden, which allows you to fine-tune the processor and the graphics accelerator.

In the Developer menu, find the item “Limit of background processes.” By default, the system decides how many applications to keep in memory. Forced restriction (for example, up to 2-3 processes) can free up resources for an active task, but be prepared for the fact that music in the background may be interrupted.

You should also pay attention to window scaling settings: Reducing the scale of window animation, transition and animator duration to 0.5x or completely shutting down (Without animation) makes the interface more responsive, especially for low-end models of the Redmi and Poco series entry-level.

Another useful feature is to prevent Wi-Fi from running in sleep mode unless you are using background synchronization. A constant search for the network can wake the processor up, preventing it from going into deep sleep, which indirectly affects the overall responsiveness of the system upon waking.

Problems after the update and resetting settings

Often, the lags appear immediately after the firmware update, which is normal: in the first hours or even the day after the update, the system indexes files and optimizes applications for the new version of Android, during which time the phone can warm and run slower than usual.

If the problem persists after 2-3 days of active use, it is possible that the update was error-prone or damaged system files, in which case the factory reset helps.Be sure to back up all important data to the cloud or computer before this procedure.

⚠️ Warning: Hard Reset completely removes all data from the internal drive, including photos, contacts and files. Make sure you have an up-to-date copy.

To perform the reset, go to Settings → About Phone → Reset. Select “Erase All Data.” Once you reboot, you’ll get a clean system. It’s recommended that you don’t restore all applications from the backup at once, but install them again to avoid transferring junk files.

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Resetting to factory settings is the most effective way to deal with software bugs, but it takes time to reset the phone and install apps.

Hardware limitations and wear of the device

Remember, software can't get around the physical limitations of hardware. If your smartphone is over 4-5 years old, modern versions of apps and websites may just be too heavy for its processor, and in this case, lags are a natural result of progress.

Battery degradation also affects performance, and when the battery can't deliver the right current under load, the system artificially limits the processor frequency so that the phone doesn't turn off on its own, and you can check the battery status through an engineering menu or special applications like AccuBattery.

Mechanical damage, such as battery bloating or poor contact of plumes, can cause chaotic hangings. If the phone lays down and turns off when a certain position in space or shaking, the problem lies inside the case.

The table below shows approximate terms of relevance of processors for comfortable operation of modern applications:

FAQ: Frequently Asked Questions