Cache Cleanup on Xiaomi 8T: Full Instructions for Speeding Up Your Phone

Xiaomi 8T is one of the most popular smartphones of the brand, but over time even it begins to slow down. A common reason for slow operation is crowded cache. In this article, we will discuss how to properly clean the cache on Xiaomi 8T without deleting important data. We will look at all types of cache (system, applications, Dalvik), and also tell you when cleaning is really necessary and when it can harm.

Cache is a temporary file that is created to speed up the system and applications. However, over time, they accumulate, take up space in memory and can cause failures. On the Xiaomi 8T with its 6/8 GB of RAM and 64/128 GB of ROM, the problem of cache clogged is especially relevant if you are actively using instant messengers, social networks or games. It is important to understand that cleaning the cache is not equivalent to resetting to factory settings - it is a more gentle procedure that does not delete your photos, contacts or messages.

In this instruction you will find:

🔍 How to check how much cache is used on your Xiaomi 8T
🧹 Step-by-step methods of cleaning the cache (manual and automatic)
⚠️ When cleaning the cache can harm productivity
🛠️ Additional methods of optimizing the smartphone

1.Why clear the cache on Xiaomi 8T?

Cache has a useful function of speeding up the loading of frequently used data, such as when you open Instagram or YouTube, the app downloads thumbnails, fonts and other elements from the cache, rather than downloading them again.

📉 Takes up gigabytes of memory – on Xiaomi 8T 64GB is critical.
🐢 Slow down work – the system spends resources on processing outdated data.
🔄 Failures – corrupted cache files can lead to crashes of applications.
🔒 Deteriorating security – sensitive data can be stored in the cache (for example, sessions in banking applications).

In our experience, cleaning the cache on Xiaomi 8T gives a noticeable performance boost if:

📱 The phone began to “hang” when switching between applications.
🔋 The battery is discharged faster than usual (due to background activity of the processes that clean the cache).
🚫 Applications suddenly close or issue errors.

⚠️ Warning: Don't clean the cache "just in case"! Frequent cleaning (once a week) can impair performance as the system will have to reassemble the cache — 1 time 2-3 month or with clear signs of slowing down.

2. How to check the cache volume on Xiaomi 8T

Before you clear the cache, make sure it really takes up a lot of space. On Xiaomi 8T, there are two ways to do this:

Method 1: Through Storage Settings

Open the Settings → Memory.
Tap on Other Apps (or Apps depending on the version of MIUI).
At the top of the screen, you’ll see a memory usage graph where the cache is highlighted in a separate color (usually gray).
Below is a list of applications sorted by the amount of cache occupied.

Go to Settings → Applications → Application Management.
Slip on three dots in the upper right corner and select Sort by size.
The list will show the applications that occupy the most space, including cache.

If the cache volume exceeds 1-2 GB, you should consider cleaning. For example, users of Xiaomi 8T often “inflate” cache in:

📷 Google Photos (miniatures and previews)
🎵 Spotify/YouTube Music (album covers)
🎮 Games (textures, shaders)
💬 Telegram/WhatsApp (mediafiles)

📊 How often do you clean your Xiaomi cache?

Once a month

Once in 3 months

Only when the phone is slowing down.

Never cleaned.

3. Cleaning the app cache on Xiaomi 8T

The safest way is to clear the cache for individual apps, which won’t delete your data (like WhatsApp or saving in games), but will free up space.

Step-by-step:

Open Settings → Applications → Application Management.
Select the app you want to clear (such as Chrome or Facebook).
Put it in the storage (or memory).
Click Clear Cache (not to be confused with Clear Data – this will remove all app settings!).

For convenience, you can sort applications by cache size:

Open Settings → Applications | Select sort by size |Tap on the application with a large cache |Tap "Clear the cache" (Do not "Clear the data!") |Repeat for the 5-10 most "heavy" applications-->

Example: Google Chrome cache can take up to 500 MB, and Instagram – up to 1 GB. After cleaning these applications will be longer to load on the first run, but in the future work stabilizes.

⚠️ Warning: Do not clear the cache for system applications like com.android.systemui or com.miui.home unless absolutely necessary. MIUI (Disappearance of icons, animation errors).

Automatic cache cleaning

The Xiaomi 8T has an automatic cleaning feature:

Go to Settings. → Memory.
Slip on the Cleanup (broom sign in the upper right corner).
Select the Cash apps and click Clear.

This method removes the cache of all applications at once, but does not affect the system cache (Dalvik).

4. Cleaning system cache (Dalvik-Cache) on Xiaomi 8T

Dalvik-Cache is a special cache that Android uses to speed up the launch of applications, which is less often required to clean, but can significantly speed up the work of Xiaomi 8T if:

🐌 The phone is a long time to “think” when opening any applications.
🔄 After updating MIUI lags appeared.
📱 The smartphone spontaneously reboots.

Dalvik-Cache is cleaned through Recovery:

Turn off the Xiaomi 8T.
Press the Power + Volume buttons up at the same time and hold until the Mi logo appears.
From the Recovery menu, select the language (if required), then go to Wipe & Reset (or Advanced in older versions).
Select Wipe Dalvik Cache and confirm the action.
Once completed, press Reboot to reboot.

⚠️ Warning: Don't confuse the Wipe Dalvik Cache with Wipe Data! The second option will completely reset the phone to factory settings, deleting all your data.

After cleaning the Dalvik-Cache, the first launch of the Xiaomi 8T can take up to 5-10 minutes – this is normal, since the system recovers the cache again.

What happens if you clean Dalvik-Cache too often?

With frequent cleaning of Dalvik-Cache (for example, once a week), Android will be forced to constantly reassemble optimized application files: 🔋 Increased battery consumption (processor spends resources on compilation). 🐢 Slowing down application launches in the first days after cleaning. 📈 Increased load on the drive (frequent write/delete shorten memory life) Optimally clean Dalvik-Cache no more often 1 time-in 3-6 months or after major updates MIUI.

If standard methods don’t work, you can use the engineering menu (#4636##) which is suitable for advanced users, as incorrect actions can disrupt the system.

Instructions:

Open the Phone app and enter the combination: ##4636##.
In the menu that opens, select Battery Statistics (or Usage Statistics).
Slip on three dots in the top right corner and select Clear Statistics.
Go back to the main menu of engineering settings and select Phone Information.
Scroll down and click Clear the data cache (if the option is available).

This method clears deep system caches that are not deleted by standard methods, but it can reset some network settings (such as saved Wi-Fi hotspots).

💡

Before using the engineering menu, back up your important data via Settings → Additional → Backup and Reset. This will help you restore your settings if something goes wrong.

6. Alternative ways to optimize Xiaomi 8T

Cache cleaning isn’t the only way to speed up the Xiaomi 8T. If the phone is slowing down after all the manipulations, try:

Method	The effect	How to apply
Cancel animations	Speed up the interface by 15-20%	Enable Developer Mode and disable animation in Settings → For Developers
Limitation of background processes	Reduced battery consumption and RAM	In Settings → Applications → Autorun disable autorun of unnecessary applications
MIUI Update	Bug fixing and optimization	Check the updates in Settings → About the phone → System update
Transfer of applications to SD-map	Freeing Internal Memory	In the application settings, select Storage → Change. → SD-map
Resetting settings (last option)	Complete system cleanup	In Settings → Additional → Backup and Reset

If you decide to reset the settings to factory, do not forget first:

📱 Save Contacts in Google Account.
📷 Transfer photos and videos to a computer or cloud.
🔐 Write down passwords from Wi-Fi and apps.

💡

Cache cleaning is a temporary solution. If the Xiaomi 8T continues to brake after all the manipulations, the problem may lie in the wear of the drive (especially if the phone has been in use for more than 3 years) or a battery malfunction (check its health through the AccuBattery app).

7. Frequent errors when cleaning cache on Xiaomi 8T

Many users make mistakes that, instead of improving performance, make the smartphone worse.

🚫 Clearing the cache for all applications in a row – this leads to the fact that the system spends days on data recovery, and the phone at this time is slower.
🔧 Using “cleaners” from the Play Market – most of these applications (for example, Clean Master) not only do not help, but also load the system with background processes.
🔄 Cleaning the cache immediately after the update MIUI — in new firmware versions, the cache is optimized for the current system, and its removal can cause bugs.
📂 Delete files manually through Explorer – you can accidentally erase important system data, which will lead to a “brick” of the phone.

If you still want to use third-party utilities for cleaning, choose proven options:

🛡️ SD Maid – allows you to clean the cache selectively and has the function of finding “junk” files.
🔍 Files by Google – the official application from Google with the function of cleaning cache and duplicates.

Remember, the best cleaner is the built-in MIUI tools, which are optimized specifically for the Xiaomi 8T and will not harm the system.

Frequently Asked Questions (FAQ)

❓ Cleaning the cache will delete my photos, videos or messages?

No, cache cleanup doesn't affect your personal data (photos, videos, correspondence, contacts) it only deletes temporary files that apps create to speed up work, however, if you click Clear Data (not Clear Cache), then all settings and saves inside the application will be deleted.

❓ Why After Cleaning the Cache, the Phone Started to Slow Down?

This is normal in the first 1-2 days after cleaning: the system and applications are forced to recreate cache files, which requires additional resources. After a couple of days, the performance stabilizes. If the lags last longer, check if the phone is overheating (perhaps background processes overload the processor).

❓ Can I clear the cache for all applications at once?

Yes, you can do this through Settings → Memory → Cleanup → App cache. However, we don't recommend doing this often. It's better to clean the cache selectively for the heaviest apps (e.g., Facebook, Instagram, games). Complete cleaning forces all apps to reassemble the cache, which temporarily slows down the phone.

❓ Do I need to clear the cache before selling Xiaomi? 8T?

Clearing the cache before selling is optional, as the new owner will likely make a full reset, however, if you want to delete all your data (including the cache with possible logins/passwords), perform a factory reset in Settings → Additional → Backup and Reset. This will delete everything, including the cache, apps and personal files.

❓ Why is the cache on Xiaomi 8T fill up again?

It depends on your phone usage style. cache quickly accumulates if you: 🎮 You often play heavy games (such as Genshin Impact or the game). PUBG). 📺 Watch a lot of high-resolution videos (YouTube, TikTok). 📸 Store thousands of photos in Google Photos or Gallery. 💬 Actively use messengers with media files (Telegram, WhatsApp). To slow down the filling of the cache, limit the background activity of applications in Settings → Battery → Energy saving regime.