How to delete Xiaomi update file and free up space in memory

Owners of Xiaomi, Redmi and POCO smartphones often face situations where the device’s system memory is overflowing and it becomes almost impossible to vacate. One of the hidden reasons for the lack of gigabytes is the accumulated system update files that the device downloads in the background but does not install. These data can take up from 500 MB to 3 GB, which is critical for budget models with a small amount of internal storage.

The problem is compounded by the fact that the standard memory analyzer does not always correctly classify this data, referring to system files, which are supposedly impossible to delete. OTA-Over-The-Air is simply archives lying in hidden directories and can be safely removed if you don’t plan to update right now.In this article, we’ll break down all the cleanup methods, from simple methods through the file manager to advanced techniques using the use of the new file manager. ADB.

Before we start manipulating, we need to understand the difference between installing a new version of MIUI or HyperOS and removing the installation package. We won't roll back the system or break the bootloader, our goal is file system hygiene, and this is especially true for users who prefer the stability of the current build and don't want to waste traffic and space on new, often raw, versions of firmware.

Why Smartphones are automatically downloading updates

Xiaomi’s ecosystem is built around continuous software improvement, with the default settings activating the automatic download of updates when connected to Wi-Fi. The system periodically surveys servers for a new MIUI build. If a new version is found, the phone starts downloading the full installation package in the background.

This behavior is designed by developers to keep the device safe and up-to-date, but often annoys users. The file can download, but the installation process will not start if you have not given consent or the battery has been discharged. As a result, the heavy archive remains "dead weight", taking up valuable space.

⚠️ Note: Deleting the update file does not cancel the update itself forever.The system may download it again after a while, unless you change the appropriate settings in the developer menu or system application.

There are also different types of updates: full packages and delta updates. Full packages weigh significantly more (2-4 GB), while delta updates only contain modified files. Understanding this difference helps to estimate how much space can be freed up after cleaning.

Search and delete through the built-in file manager

The easiest and most affordable way to get rid of excess weight is to use the File Manager tool, which, unlike third-party solutions, has access to the main system folders without the need to obtain superuser rights (Root).

To start, open the Explorer app and go to the browsing settings (usually a menu icon or three dots). Find the Show Hidden Files switch and activate it. Then the folder structure changes, and directories that start from a dot will be visible. We need to find a path where the temporary system files are stored.

The directory you are looking for is usually located at the address /data/last_update_log/ or in the root folder /downloaded_rom/. This is where the.zip file extension, which can weigh up to several gigabytes, is located. Select this file with a long tap and select the deletion option.

It is important to note that after cleaning the folder downloaded_rom The system may stop seeing the available update in the About Phone menu. That's OK. If you decide to upgrade later, you'll have to download the package again through the firmware version selection menu.

Using the Security Application for Cleaning

The embedded Security app is a powerful tool that is often ignored, preferring third-party clinchers. However, it has deepest integration with the MIUI shell. Unlike simple file deletion, it is able to find system process remnants and update cache.

Run the app and select Clean up. The system will scan and suggest removing the garbage. But for a deeper cleaning, click on the settings icon (cogs) or go to Memory Cleanup -> Deep Cleanup. Here, the Service Package may be lost in the "Applications" or "Large Files" category.

Sometimes the update file is disguised as a system process. If the standard cleaning didn't work, try to find the Updater process in the application list. Go to its storage and click "Clear Data." This action will delete not only the cache, but also the downloaded, but not installed, firmware package.

It’s worth remembering that aggressively cleaning the cache can cause the phone to boot longer the next time it’s turned on, as the system will have to re-form temporary files, a normal behavior that shouldn’t cause panic.

Disabling Automatic Updates Through Settings

To keep the problem from coming back in a week, it's not enough to just delete the file. You have to shut down the channel that this data is going to the device. In modern versions of HyperOS and MIUI 14, the settings have become more flexible, allowing you to fine-tune the process.

Go to Settings -> About. Click on the MIUI version (or system logo) to open the update menu. Then click on three dots in the corner of the screen and select "Update Settings." Here you need to turn off the Autoload Updates option and uncheck the Notify Updates box.

There is also a method through the Special Options menu. Go to Settings -> Advanced Settings -> Special Options -> Services. Find a MIUI Daemon or MIUI Optimization component there (depending on the Android version) and turn it off. This may affect some system functions, so proceed with caution.

⚠️ Warning: Disabling the system component of the updater may cause errors in the work of security certificates and banking applications.

After changing the settings, it is recommended to restart the device, which ensures that all background services responsible for version verification are stopped and restarted with the new settings.

Advanced method: Delete via ADB from a computer

For users who want to be 100% sure of the outcome, there is a method of debugging update files via USB. This method requires a computer and cable, but it gives access to system directories hidden from the average user. You will need ADB Tools or Platform-tools from Google.

The first step is to activate the developer mode. Go to Settings -> About Phone and quickly press 7 times on the MIUI version. You will be a developer. Next go to Advanced Settings -> Developer and enable USB Debugging.

Connect your phone to your PC, allow debugging on your smartphone screen. Open the command prompt (CMD) in the ADB folder and enter the command to log in to the shell:

adb shell

Now we can move on to deletion. The command to clear the bootloader cache looks like this:

pm clear com.android.updater

This command compulsorily clears all system update data, including downloaded zip archives, a more radical method than manual deletion, since it resets the state of the application to the factory.

For deeper cleaning, you can use the rm-rf command, but it requires root rights or work in directories available through ADB in shell mode. Be extremely careful with the syntax of Linux commands, one error can lead to system failure.

Frequent errors and solutions to memory problems

Even after deleting files, users sometimes notice that the memory is not free, which may be due to the peculiarities of the file system or gallery caching. Often, the "other" in the storage takes up space due to fragmentation or indexing errors.

One common mistake is to try to delete files through third-party software-cliners that require excessive permissions. Such applications often become a source of garbage themselves.

If after all the manipulations the phone continues to behave strangely (heating, slow), perhaps the problem is not the update files, but the failure of the file table, in which case resetting the settings to the factory will help, but this is an extreme measure requiring a full backup of data.

Remember, the system needs space for temporary operations, if the memory is full, even removing updates will only have a temporary effect, and try to keep at least 15-20% of the total storage space free.