Owners of the popular Xiaomi Redmi 8T often face slowdowns or lack of free memory space, a natural process of accumulating temporary files that apps create to load content quickly, and over time, this data grows, taking up gigabytes of valuable resource and causing lags in the system.
Regularly cleaning up cached data helps to restore the device to its previous sharpness of response and frees up space for new photos and applications. The Android operating system, which runs MIUI, has built-in mechanisms for memory maintenance that do not require the installation of third-party software.
In this article, we will take a look at all the available methods for deleting temporary files, from standard settings to advanced developer menu features, learn how to distinguish between cache types and understand which files can be deleted without risking the stability of your Redmi 8T.
Types of cached data in the Android system
Before we start cleaning, we need to understand what we are removing. Xiaomi smartphones have a division into app cache, system cache and browser clipboard, each type of data performs its function and requires a personalized approach to service.
App caches are temporary files that programs save to speed up re-launching, like Instagram storing image previews here, and the navigator storing maps of recently visited places, and deleting that data is safe, but when you first start up, the app will load a little longer than usual.
What is the difference between cache and application data?
The system cache includes MIUI operating system logs and temporary update files, which are often cleaned after a major firmware update, when the old installation files are no longer needed, but continue to take up space in the internal memory partition.
💡
Cache cleaning does not delete your personal photos, contacts or passwords, it only affects the speed of the programs.
Use of the built-in "Security" application
The easiest and safest way to clean up the cache on Xiaomi Redmi 8T is to use a regular tool from developers. The company has built a powerful optimizer right into the shell that allows you to manage memory in one click.
To get started, look for an icon on your desktop called "Security" (green shield), launch the app and wait for the automatic scan, and the system will analyze the memory status, the presence of malware and the amount of junk files.
After the analysis is complete, click the Clean button in the Garbage block, the system will prompt you to delete temporary files, remnants of deleted applications and advertising debris. Confirm the action, and the smartphone will automatically free up space.
☑️ Daily smartphone maintenance
It is important to note that the Cleanup feature in this application removes mainly cache and unnecessary system logs, but for deep cleaning of specific programs this may not be enough, and you will need to manually tweak the settings of each application separately.
Manually cleaning the cache of individual applications
If a particular program is not working properly or takes up an abnormally large amount of space, individual cleaning is required. Social networks and instant messengers such as Telegram or WhatsApp are able to accumulate gigabytes of cache in a few months of use.
To do the cleaning, go to the Settings menu and select the App. From the list of all programs, find the app you want (like YouTube or TikTok) and click on it. From the menu that opens, select the Storage tab.
So here you'll see two buttons: Clear cache and Clear everything. We're interested in the first option. Clicking on the cache clean button will delete temporary files, but it will save your authorization and settings inside the program.
💡
In the Telegram messenger, it is better to clean the cache through the settings of the application itself: Data and Memory → Memory Use → Clear the cache. There you can set the automatic cleaning of old files.
If the application takes 500 MB and it takes 50 MB after cleaning, it's a success, and doing it periodically for heavy applications extends the life of your Redmi 8T drive.
Cleaning the cache through the recovery menu (Recovery Mode)
There is a deeper level of cleaning available through Recovery Mode, which removes the system cache that can accumulate after crashes or failed updates, and is safe to use if you follow the instructions.
To enter recovery mode, you need to turn off your smartphone completely. Then press the volume button and the power button at the same time. Hold them until the Mi logo appears, then release the power button, continuing to keep the volume.
In the menu, the navigation is done with volume buttons (up/down), and the choice is confirmed by the power button. Find the Wipe Data item (in some versions, immediately Wipe Cache), select the Wipe Cache option and confirm the action.
⚠️ Warning: In the Recovery menu, select items carefully. The Wipe All Data option will completely delete all your files and reset your phone to factory settings. You only need to clear the cache (Wipe Cache).
Once the process is complete, the phone will prompt a reboot, which can take longer than usual to run after the procedure, as the system will need to recreate the necessary temporary files from scratch.
Cleaning the DNS cache and browser
Often, the problems with loading pages or displaying sites are not related to the memory of the phone, but to the cache of the DNS or the browser itself. Browsers save copies of the pages visited so that they can be opened faster when you revisit them.
To clear the DNS cache on Xiaomi, you can use a hidden menu of engineering settings. Enter the code ##4636## in the Phone app. From the menu that opens, select Wi-Fi information or Phone information and find the Flush DNS button.
If you are interested in cleaning your browser (e.g. Chrome or standard Mi Browser), go to the browser settings, the History or Privacy section, where you can select the time period and type of data to be deleted, leaving only the tick on the item "Images and other files saved in the cache".
Why do you need it? DNS-cash?
Regularly cleaning your browser cache is especially important if you are actively using web versions of social networks, which frees up space in the system memory section and eliminates graphics display errors on sites.
Automation and prevention of garbage accumulation
To avoid manual cleaning every week, you can set up automatic maintenance. The Security app has a Schedule feature that allows you to set the time for automatic garbage cleaning and antivirus checks.
Also worth paying attention to the settings of the apps themselves, many social networks allow you to limit the size of the cache or set up automatic deletion of old files when memory is overflowing, which prevents situations where the phone suddenly reports a shortage of space.
| Type of cleaning | Security of data | Impact on speed | Recommended frequency |
|---|---|---|---|
| Security annex | Tall. | Average. | Once a week. |
| Cleaning up the app cache | Tall. | High. | As necessary |
| Wipe Cache (Recovery) | Tall. | High (systemic) | After the updates |
| Data resetting (Wipe Data) | Low (removal of everything) | Maximum. | When selling or making critical mistakes |
Using third-party software on Android often doesn’t offer advantages over built-in tools, and aggressive cliners can keep their services running all the time, draining the Redmi 8T battery and putting extra strain on the processor.
⚠️ Note: Do not install questionable apps to “accelerate” RAM» They're often adware and can contain viruses that steal your data.
Compliance with simple digital device hygiene rules will allow your Xiaomi Redmi 8T to run fast and stable over the years. Regularly check storage and remove unused applications to keep the system running at its optimal rate.