Cache data in the phone Xiaomi Redmi: what it is, why they are needed and whether it can be deleted

Have you ever looked into your Xiaomi Redmi memory settings and seen the mysterious item "Cached Data" in it? You may even be frightened by the number of gigabytes taken up by this "junk," but before you grab the "Clean Up" button, it's worth figuring out what it is and whether deleting the cache will harm your smartphone?

In this article, we will explain in detail how the cache in MIUI (branded shell Xiaomi), what types of cached data exist, and most importantly, how to delete it correctly so as not to encounter slowdowns or errors in applications.

What is cached data and why do they need it?

Cache data is a temporary file that creates apps and a system to make it work faster. Imagine you go to Instagram, instead of downloading the same profile pictures or avatars of friends each time, the app stores them to cache, so that the next time you open the content is loaded instantly.

In Xiaomi Redmi, the cache is divided into three main types:

• 📱 Application cache – temporary files of individual programs (photos, videos, thumbnails, form data)
• 🖥️ System cache - shell files MIUI, Android core and service processes
• 🗃️ Dalvik cache – optimized versions of installed applications (created when updating the software)

Without the cache, your Redmi Note 12 or POCO X5 would be much slower, like Google Chrome without the cache would load every site from scratch, and YouTube would buffer videos longer, but over time, the cache can grow to unreasonable sizes — especially if you actively use social networks, instant messengers or streaming services.

Can you delete cached data on Xiaomi Redmi?

The short answer is, yes, you can, but it's not always good, and cleaning the cache is like cleaning the closet, and if you clean it wisely, it's more spacious, and if you throw it away, you'll have to look for things for a long time.

Here’s when cleaning the cache is really necessary:

• 📉 The phone was slowing down for no apparent reason.
• 📱 Apps suddenly fly out or work incorrectly
• 🗑️ Memory is 90 full%+, You have not installed new programs.
• 🔄 After updating MIUI glitched

When cleaning the cache will not be useful or even harmful:

• ⚡ You clean the cache once a day – it will only slow down your work.
• 🎮 You play online games actively (cache stores textures and maps)
• 📷 You often edit photos/video (cache speeds up processing)

⚠️ Warning: Don't confuse cached data with application files! Deleting cache won't delete your accounts, saves or settings, but cleaning up app data ("Clear Storage" option) erases ALL, including logins and game progression.

How to Clean Cache on Xiaomi Redmi

There are three main ways to clean the cache, and each is suitable for different situations: Choose a method depending on whether you want to clear the cache of an individual application, all programs at once or the system cache.

Method 1: Clearing the cache of a separate application

If a particular application (such as TikTok or Telegram) is slowing down, just clear the cache:

1. Open Settings → Applications → Application Management
2. Select the app you want (such as Facebook)
3. Click Warehouse → Clear the cache

Method 2: Mass cleaning the cache of all applications

If you want to make room quickly,

1. Go to Settings → Memory
2. Click on Clear in the section "Cached data"
3. Confirm the action (a password may be required)

Close all important applications

Connect your phone to charge (in case of a long reboot)

Make a backup copy of important data

Remember logins from frequently used services-->

Method 3: Cleaning the system cache (for experienced)

This method removes the MIUI and Dalvik cache, which can help with serious lags after the update.

1. Turn off the phone.
2. Press the Power button + Volume up to enter Recovery
3. Choose Wipe & Reset → Wipe Cache
4. Confirm and restart the device

⚠️ Warning: Cleaning Dalvik cache through Recovery will reset all applications optimization. After restarting, the phone may run slower than 5-10 minutes until the system recovers the cache again.

What happens if you clear the cache on Xiaomi Redmi

The consequences depend on which cache you deleted:

The benefits of cleaning:

• ✅ Freed from 500 MB to 5-10 GB of memory (depending on the model)
• ✅ Glitches in problem applications disappear
• ✅ The system speeds up if the cache is overloaded

Cons of cleaning:

• ❌ Applications will be loaded longer when first opened
• ❌ Some services (such as maps in Google Maps) will have to be downloaded again.
• ❌ Short-term friezes are possible while the system recovers the cache

For example, once the YouTube cache is cleared, videos will start buffering for longer until the app caches frequently viewed content, and in Google Photos, the thumbnails of the albums will be downloaded gradually.

💡

If the application becomes worse after cleaning the cache, just close it and open it again - the system will automatically restore the necessary temporary files.

How often should you clean the cache on Xiaomi?

There is no clear schedule, but there are recommendations depending on the model and intensity of use:

Modern flagships like Xiaomi 13 Ultra or Redmi K70 Pro, thanks to a powerful processor and a large amount of memory (256/512 GB), can do without cleaning the cache for years, but budget models (Redmi A2, POCO M5) with 64-128 GB of memory require more frequent monitoring.

💡

Clean the cache only when it is really necessary. Regular "preventive" cleaning does not speed up the phone, but rather causes the system to waste resources on re-caching.

Myths and truths about cache in Xiaomi Redmi

There are many myths surrounding cached data, and we'll look at the most popular ones.

Myth 1: “Cache cleaning speeds up the phone on a consistent basis”

Truth: The acceleration is temporary. In a few days, the cache will recover, and if it wasn't the problem, the lags will come back, more often the brakes are due to background processes or memory fragmentation.

Myth 2: “Cache can be cleaned every day”

Truth: Frequent cleaning forces applications to constantly recreate temporary files, which increases the CPU load and reduces battery life.

Myth 3: “Cache and application data are the same thing”

Truth: Cash is temporary files, and the app data (Clean Storage) is your settings, logins, and saves, and deleting the data will result in logging out and losing game progress!

Myth 4: “There is no need for cache on new smartphones”

Truth: Even the Xiaomi 14 with 16GB of RAM uses cache to speed up app loading, just because of its powerful hardware, its impact is less noticeable.

Alternatives to cleaning cache: how to free memory without loss

If the goal is simply to make room, cleaning the cache isn't always optimal.

• 📁 Transfer files to memory card: Photos, videos and music can be moved to microSD (if the model supports).+, For example, there is a slot for cards up to 1 TB.
• ☁️ Cloud storage: Google Photos, Mi Cloud or Yandex Drive automatically back up media files. Set up autoload to Settings → Accounts. → Mi Cloud.
• 🗑️ Removing Duplicates: Use the built-in Cleanup app (Security) → Cleaning) to find duplicate files.
• 🎮 Optimization of games: In Settings → Special facilities → Optimization of games can be limited FPS and graphic quality, reducing the cache volume.

For models with UFS 3.1 (such as the Xiaomi 13T), it is especially important to avoid fragmentation.

⚠️ Note: Some Redmi models (e.g. Redmi) 9A) In-built memory like eMMC degrades over time with frequent recordings/deletions. Constant cleaning of the cache will accelerate the wear of the drive!

FAQ: Frequent questions about cache in Xiaomi Redmi