Smartphone owners of the Chinese brand often face a situation when the once-fast device begins to slow down, open applications for a long time or even hang dead. Why is Xiaomi phone bugging? This question becomes especially relevant after another system update or installing a “heavy” game. Users are used to the speed of MIUI, and any delay in response is perceived as a critical error that requires immediate intervention.
The causes of the instability can be both software failures of the shell and a banal lack of free resources. Often the culprits are background processes that are not optimized for a particular CPU model. It is important to understand that modern smartphones are complex computing complexes where every megabyte of RAM counts.
In this article, we will take a closer look at the underlying factors that cause lags and suggest proven methods to address them: you will learn how to manage memory properly, disable unnecessary services, and configure the system for maximum performance. 90% of the time, the problem is solved by software optimization without having to go to a service center.
Overflow of operational and built-in memory
The most common reason Xiaomi's phone is bugged is a critical lack of space. Android and MIUI require a significant amount of space to create temporary files and cache. When the built-in drive is over 85% full, the speed of writing and reading data drops dramatically, causing noticeable friezes.
RAM is also key: If you keep dozens of tabs open in your browser and a few heavy apps, the system simply has nowhere to put data to quickly access, which leads to constant access to a slower internal storage, which is what the user feels like a brake.
- 📱 Clear the messenger cache, as Telegram and WhatsApp can take up gigabytes of space.
- 🗑️ Remove unused apps that hang in the background and consume resources.
- 📸 Move photos and videos to a cloud server or computer to make room.
Regularly audit files, do not store movies you have already watched or application installation files (APKs) that are no longer needed, and the system is more stable when it has air to maneuver.
⚠️ Warning: Do not fill the internal memory of the device to the end. For the correct operation of the file system, always leave the minimum free. 5-7 GB.
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Use the built-in Security app for quick trash cleaning, but don’t rely on it entirely – manually checking download folders often gives you the best result.
Conflicts after the update of the MIUI firmware
Often users notice that the phone starts to glitches as soon as they receive a notification of the release of a new version of MIUI. This phenomenon is known as the “adaptation period”. After the update, the system performs file indexation, database optimization and reassembly of the application cache, which creates a high load on the processor.
However, sometimes the problem goes deeper: New firmware code can conflict with residual files from the old version, especially if you go through one or two versions (for example, from MIUI 12 to 14 at once).
If the lags do not pass within 2-3 days of active use, it is worth checking for "hot" updates, which are often released immediately after a major release to fix bugs. Also helps resetting settings, but it should be resorted to only after you have created a full backup.
What is a “hot update”?
The Impact of Google’s Background Processes and Services
Google’s complex ecosystem of services and Xiaomi’s own services can be a source of increased workload, with contact synchronization, geolocation, usage analytics and automatic app updates consuming not only battery power but also CPU cycles.
Google Play Services can sometimes get stuck in a cycle of sync or update attempts, causing the case to heat up and severe interface lags, and checking the process activity in the developer section will help identify the culprit.
It is recommended to limit background activity for applications that you rarely use, and this can be done through the battery settings by selecting the mode “No restrictions” only for instant messengers, and the rest are allowed to work only when the screen is open.
- 🚫 Turn off personalization of ads in Google account settings.
- 🔒 Limit background work for social media if notifications aren't critical.
- 📉 Check the auto-run list and remove the unnecessary programs from there.
Problems with animation and visual effects
MIUI is famous for its beautiful yet resource-intensive animations. On mid- and low-end models with less powerful graphics accelerators, rendering complex transitions can cause micro-freezes, giving the phone the illusion that it is slow, even though it has enough processing power to do the job.
Cutting down or shutting down animations completely can do wonders for speed perception. The interface becomes more twitchy, but the response to touch is instantaneous, and this is especially true for devices that are several years old.
To access these settings, you need to activate the developer mode. Find the MIUI version in the About Phone section and click on it 7 times in a row. Then, in the advanced settings, look for the Developer section.
Settings → About Phone → MIUI Version (7 clicks) → Advanced Settings → For DevelopersInside the menu, find the items "Scale of window animation," "Scale of transition animation," and "Scale of animator duration." Change the value from 1x to 0.5x or Off.
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Decreasing the quality of animation is the fastest way to visually speed up the work of an old smartphone without losing data.
Table: Main reasons and methods of decision
To systematize the knowledge of why Xiaomi phone is bugging, it is convenient to use a summary table, which will help you quickly identify the problem by symptoms and choose the right algorithm for actions.
| Symptoms. | Probable cause | Method of decision | Difficulty |
|---|---|---|---|
| The phone is warming and slowing down. | Background process or mining | Checking the task manager, removing viruses | Low. |
| Lags for typing | Keyboard cache overflowed | Cleaning the data of the application "Keyboard" | Low. |
| Long-term applications open | Lack of RAM | Closing background applications, expanding memory | Medium |
| System friezes after the update | Firmware file conflict | Full reset (Wipe Data) | Tall. |
| The brakes are only in games. | trottling or overheating | Graphics down, cover down. | Low. |
Use this table as a checklist for your diagnosis, and if the simple method doesn't work, move on to more complex activities, such as resetting or flashing.
Expanding RAM and setting the developer
Xiaomi’s current smartphones support virtual memory expansion technology. The system takes some of the built-in storage and uses it as an addition to RAM. This can help if you have a 4 or 6 GB model, but it has its own nuances.
Enabling this feature can both speed up multitasking and slow it down if the built-in drive has a low write speed, and you can experimentally determine if you need this extension, and there is a Do Not Stay Activity option on the developer menu that completely clears the memory when you leave the application.
☑️ Checking the performance settings
Remember that aggressive memory management can cause applications to unload too quickly. Find a balance between free memory and usability.
⚠️ Attention: Memory expansion increases wear on the built-in drive. On older devices with worn-out flash memory, it is better to keep this option off.
When a complete reset or refrigeration is required
If none of the software methods worked and the phone continues to glittle, the radical but effective method remains: a full reset to factory settings (Wipe Data), which removes all user data, applications and settings, returning the device to the “out of the box” state.
Before starting the procedure, be sure to back up important data in the Mi Cloud or on your computer, and reset can be done via the Recovery Mode menu or through your phone settings if the interface is available.
In extreme cases, when even reset does not help, you need to flash the device through the computer using the Mi Flash Tool utility. This allows you to completely install the latest version of the system, eliminating any software errors of experience.
Remember, after a reset, you don't have to install hundreds of applications immediately. You let the system run clean to make sure you fix the problem. Often, one particular, low-quality application causes lags.