How to Clean Xiaomi Phone Completely: A Complete Guide

Xiaomi’s smartphones are famous for their performance, but over time, even the most powerful flagship starts to work slower.It’s a natural process of accumulating system debris, app cache and residual files after remote programs. If your Redmi or POCO began to open applications for a long time or suddenly discharge, it’s time for a general cleaning.

In this article, we will discuss all cleaning methods, from standard system tools to radical reset, how to safely remove hidden debris and which folders you can not touch, and the right optimization will return the device to the speed of the first days of use.

Before we get to the point, it's important to understand what exactly takes up space in memory. Android and the MIUI shell or HyperOS create a lot of temporary files for quick operation. But over time, these files become less useful and turn into ballast.

Analysis of occupied space and search for hidden debris

The first step should always be diagnostics. You can't effectively clean up what you can't see. The built-in system provides basic information, but for deep analysis, it's better to use specialized tools or file managers with advanced rights.

Go to Settings → Memory and study the distribution of data. Often the lion’s share is occupied by messengers like Telegram or WhatsApp, which store photos and videos viewed in cache for years, and a significant amount of space can be occupied by the DCIM folder if you shoot high-resolution video.

• 🗑️ Application cache – temporary files that can be deleted without risking data.
• 📸 Media content – duplicate photos, screenshots and forgotten downloads from browsers.
• 📦 APK-Files: Installation packages that are no longer needed after installation.

Note the Android/data folder, which stores game and heavy-duty data, and removing the contents of this folder will slow down the progress of games and factory app customization, and be very careful when working with system directories.

⚠️ Note: Do not delete files with the extension.obb manually unless you are sure of their belongings.This can lead to incorrect operation of games and require re-downloading gigabyte data.

For a more in-depth analysis, the developer mode can be used or ADB-But for most users, there's enough built-in analyzer, and regular monitoring will avoid critical memory overflows that slow down the processor.

Use of the built-in "Security" application

Every Xiaomi smartphone has a Security system app preinstalled, which is not just an antivirus, but a powerful combine to maintain the system, and many users ignore its features, relying on third-party cleaners, who are often the source of advertising.

Launch the app and select Clean up. The system will analyze the device and suggest that you delete temporary files. However, if you click on Clean up right away, you only remove surface debris. To clean up properly, click on the Garbage or Deep Cleanup icon.

In the deep cleaning section, you'll find categories like "Large Files," "Unused Applications," and "Installation Packages," where you can safely remove old APK versions and forgotten downloads, and the system can tell you which apps haven't been launched in a long time.

Also in the Security app, there's a "Accelerate" feature that forcibly closes the background processes, freeing up RAM, which is useful before running heavy games or resource-intensive tasks.

Manual cleaning of cache and application data

Automated tools don't always cope with the garbage that specific applications accumulate. Social networks and browsers are the main culprits of memory overload, they save thousands of thumbnails, time pages and scripts.

To clear a particular app, go to Settings → Apps → All apps. Find a “heavy” app (like YouTube, Instagram or Chrome) in the list. Inside the app menu, select Memory or Storage.

Here you will see two buttons: Clear cache and Clear all (or Reset) — the first option is secure and only deletes temporary files — the second option completely resets the app as if you just installed it — all accounts will come out, all saved passwords will disappear inside the application.

• 📱 Browsers – Clear cache and history if pages load slowly.
• 💬 Messengers – Use the built-in cleanup inside Telegram or Viber itself to remove old media.
• 🛒 Marketplaces – Store apps often store gigabytes of product catalogs in cache.

⚠️ Note: Before clearing your data (“Clean All”) in messengers, make sure you have a backup copy of your correspondence if it is not stored in the cloud.

It is recommended to carry out this procedure once a month for the top-5 This will significantly reduce the load on the drive and speed up the start of programs, especially for devices with the type of memory eMMC, which are slower to fill.

Removal of system debris and residual files

When you delete apps in Android, you often have tails — empty folders, error logs, and configuration files — that run into thousands over time, and you’ll need a file manager like the built-in Explorer or Google Files to deal with them.

Turn on the hidden files in the Explorer settings (usually three dots in the menu corner) and look for folders with names of applications that have been deleted for a long time.

The Download folder deserves special attention, browsers and instant messengers save all files there by default, and you can often find old presentations, game installers and forgotten documents that occupy precious gigabytes.

For advanced users, there is a computer-based cleaning option, called ADB (Android Debug Bridge), which allows you to remove system debris that is not visible even to file managers, but it requires caution and command knowledge.

Resetting to factory settings (Hard Reset)

If the software cleaning did not help and the phone still works unstable, there is a radical method - a complete reset. Hard Reset returns the device to the state "out of the box", removing absolutely all user data, settings and applications.

Before starting the procedure, make sure to back up. On Xiaomi smartphones, this can be done through Settings → About Phone → Backup Restoration or through the Mi Cloud / Google Drive cloud. Save important photos and contacts.

The easiest way is through the menu. Go to Settings → About Phone → Reset → Erase all data. The system will request confirmation and password from the account. Once you reboot, you will see the screen of the initial settings.

It's a normal process of optimizing the system and indexing files. Let the phone lie on a charger with the screen off.

Optimizing after cleaning for maximum speed

Once you've cleared the phone of debris, it's important to set it up so it stays fast for as long as possible.The MIUI shell and HyperOS have a variety of features that you can turn off to improve performance.

First, turn off ads in the system if they are still active, advertising services consume traffic and CPU resources in the background, and it is also recommended to limit background activity for applications that you rarely use.

• 🚀 Animation – in the “For Developers” menu, reduce the scale of window animation to 0.5x.
• 🔋 Energy saving – set the “No Limits” mode only for important messengers.
• 📉 Autorun – prohibit unnecessary applications from running with the system.

Remember to reboot your smartphone regularly. Unlike computers, phones don't always manage memory effectively after weeks of running without turning off. Rebooting every 3-4 days is a great habit for keeping Android healthy.

💡

Use the memory extension feature only if you have less than 4GB of RAM. On fast drives, this helps, but on older models it can even slow down due to low virtual memory speeds.

Frequently Asked Questions (FAQ)