How to completely clear the cache on Xiaomi: from apps to the system

Xiaomi smartphones, which run on Android and the proprietary shell MIUI or HyperOS, over time begin to accumulate a significant number of temporary files. This data, known as cache, is created to speed up the work of programs, but when overgrowth can cause crashes, interface freezes and a critical lack of internal memory. Users often notice that the phone starts to run slower, applications fly out or take a long time to load, and it is cleaning the cache that becomes the first step in solving these problems.

The process of deleting temporary files on the Chinese manufacturer’s devices has its own unique features that distinguish it from standard Android smartphones. In this article, we will discuss not only the basic methods through settings, but also advanced methods, including working with engineering menus and cleaning system partitions, which will help return the gadget to its original speed without losing personal data.

What is cache and why you should clean it on Xiaomi

Cache is a buffer memory in which the operating system and installed applications save temporary files to quickly access frequently used data. For example, Google Chrome stores thumbnails of visited sites here, and messengers like Telegram or WhatsApp store media files from chat rooms so that they do not download them every time from the Internet. At first glance, this is a useful feature, but over time, the volume of such data can reach tens of gigabytes, occupying precious space.

The main problem with cache accumulation on Xiaomi is the aggressive MIUI background process policy.The system tends to keep applications in memory for quick start-up, but the cleaning mechanisms sometimes work incorrectly, leaving “broken” or duplicate files. Overflowing cache leads to the fact that the processor takes more time to find relevant data among the garbage, which causes micro-freezes and heating of the device case.

Regular cleaning is necessary not only to free up space, but also to correct software errors. If the application behaves incorrectly, for example, does not send messages or download pictures, the problem often lies in corrupted temporary files. Complete cleaning of the cache allows you to reset the state of the programs to factory, eliminating logical conflicts without the need to reinstall the software.

• 🚀 Acceleration of application launch and interface operation by removing excess load on the drive.
• 🗑️ Freeing up internal memory, which is especially critical for models with 64 GB and 128 GB of storage.
• 🛠️ Correction of errors in the work of specific programs that have ceased to function correctly.

Basic cleaning through the standard “Safety” application

The easiest and most accessible cleaning method for any user is built directly into the MIUI shell. The manufacturer preinstalles the system application Security, which combines the functions of an antivirus, optimizer and cleaner. This tool automatically scans the device for temporary files, remnants of remote programs and advertising debris.

To start the procedure, you need to open the Security application and click on the large Cleanup button. The system will perform a quick analysis and suggest removing the files found. However, the standard mode often works superficially and does not affect deep system caches. For a more thorough check, you should click on the Clean Up All button and then go to the Cleanup Garbage section for a detailed view of file categories.

⚠️ Note: When using Deep Cleanup, look carefully at the file list. Large Files or Unused Apps may show important documents or games that you haven’t run in a while but plan to use.

It is important to understand that the built-in Xiaomi cleaner is primarily focused on security and basic optimization, so it can skip some types of cache, especially in social network folders. For full prevention, it is recommended to combine this method with manual cleaning of specific applications, which will be discussed below. Regular use of a regular tool helps to keep the system in good shape, but is not a panacea for all memory problems.

Manually cleaning the cache of individual applications

The most effective method of dealing with bloated cache is manual memory management for each particular application. Social networks, video services and instant messengers tend to accumulate huge amounts of data. Unlike automatic cleaners, the manual method allows the user to control what data will be deleted without affecting important information such as logins and passwords.

To do this, go to the Settings menu, then select the Apps section and click All Apps. In the list that opens, find the program you want (like YouTube or Viber). Inside the app menu, you are interested in Memory (or Storage). Here you will see two buttons: Clear and Delete. It is critical not to confuse them: the Delete button will erase all data with the account, and the Clean button (sometimes signed as Clear cache) will only delete temporary files.

Special attention should be paid to the system application Media scanner or gallery, as they often cache thumbnails of photos and videos. If after deleting photos they continue to occupy space or appear in the gallery as “broken”, cleaning the cache of this system component often solves the problem.

Cleaning the system cache through Recovery Mode

If the smartphone is unstable even after cleaning applications, the problem may be in the system section of the Dalvik Cache: This is a special cache of the Android virtual machine, which contains optimized files of all installed applications. its cleaning is safe and often helps after major firmware updates MIUI, when the new version of the system conflicts with old temporary files.

To enter Recovery Mode on Xiaomi, you need to turn off your smartphone completely. Then press the on and volume button at the same time. Hold them until the Mi logo appears, then the menu with the choice of language will open. Choose English and go to Wipe and Reset (or just Wipe Data in older versions), but do not choose "Wipe All Data" as it is a full reset. You need Wipe Cache.

The sequence of actions in Recovery:


1. Wipe and Reset




2. Wipe Cache




3. Confirm (Confirm)




4. Reboot (Reboot)

Once the operation is confirmed, the system will delete the temporary random files, and the first download after this procedure may take longer than usual, from 3 to 10 minutes. This is normal, because the system needs to re-index the applications and create new optimized files. Do not interrupt the download process, even if the screen is lit for a long time with the logo.

Resetting DNS and network cache to speed up the internet

Often users complain about the slow Internet, believing that the problem is the operator, although in fact cache is clogged. DNS system or application level. Android operating system saves IP-If the site has moved to a new server and the phone remembers the old address, the page will not load.

The fastest way to clear the network cache is to use Xiaomi's hidden testing menu. Enter the phone app with the combination ##6484##. The engineering menu will open. Find the section related to version testing or WiFi (names may vary depending on the version of MIUI). However, a more versatile method is to use the debugging menu.

Turn on Developer Mode by quickly tapping the build number seven times in the About Phone menu. Then go to Advanced Settings → Developer. Find Reset settings for Wi-Fi, mobile internet and Bluetooth. This feature will completely clean up the network stack by removing saved WiFi passwords and Bluetooth pairing settings, but is guaranteed to solve connection problems.

• 🌐 Resolve the “No Internet connection” error when Wi-Fi is running.
• ⚡ Reducing ping in online gaming by updating routing.
• 🔒 Removing traces of website visits at the level of network requests.

⚠️ Attention: Resetting network settings through the developer menu will remove all saved passwords from Wi-Fi networks and break pairing with Bluetooth headphones and watches.

Using ADB for deep cleaning of system partitions

For advanced users who want to achieve maximum results, there is a method of cleaning through a computer using the Android Debug Bridge debugging bridge (ADB). This method allows you to remove the cache, which is not accessible by standard system tools, including the cache updates and temporary files. OTA-updates.

To start, you need to enable USB debugging in the developer menu and connect the smartphone to the PC. The platform platform should be installed on the computer. Open the command line and enter a command to clean the packet cache:

adb shell pm clear com.android.packageinstaller

You can also force system processes to stop and clear their cache using commands like adb shell pm trim-caches 999999999 (on Android 10 and above), which attempts to free a specified number of bytes (in this case, almost everything possible) from the app cache, a powerful tool that can instantly free up several gigabytes of space.

Using ADB requires caution, as the wrong command can lead to unstable system operation.However, if you are confident in your actions, this is the best way to "clean" the smartphone before selling or after removing a large number of heavy games.

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Before using ADB commands, make sure to back up important data. While cleaning the cache is safe, working with system commands always carries minimal risk of human error.

Frequently Asked Questions (FAQ)

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Regular cleaning of the cache is not a one-time action, but part of the hygienic maintenance of a digital device, which prolongs the life of its comfortable operation.