Cache Clearing on Xiaomi Redmi Note 8T: A Complete Guide to Accelerating Your Smartphone

Xiaomi Redmi Note 8T is a popular smartphone with a balance of performance and price, but over time even it begins to slow down. The main reason is crowded cache: temporary application files, update remnants and system debris take up precious space and slow down. In this article, we will discuss how to properly clean the cache on the Redmi Note 8T without risk to data, what types of cache exist and when to resort to radical measures.

It's important to understand that there are three types of cache: app cache (accelerates their launch), system cache (temporary MIUI files), and Dalvik cache (optimizing Android), each of which requires different approaches. We'll look at everything from standard MIUI tools to hidden features for power users, and you'll learn what cache cleaning errors 90% of Xiaomi owners make, and how to avoid them.

Why you should clean the cache on the Redmi Note 8T

Cache isn't just junk. It's for fast apps and systems. For example, when you open Instagram, the app downloads photos from the cache instead of downloading them again. But over time, the cache grows to giant sizes. On the Redmi Note 8T with 64GB of memory, users often find that there is less than 5GB of free space — and not only photos, but also cache.

The main signs that it is time to clean the cache:

  • 📱 The phone slowly opened apps (even after the reboot).
  • 🔄 Frequent “hangs” of the interface MIUI, Especially when switching between menus.
  • 📉 Unexplained decrease in free space (check in Settings) → Warehouse).
  • 🔋 Fast battery discharge – crowded cache makes the processor work harder.
  • 🚨 Messages “Not enough memory” when installing updates or new apps.

On the Redmi Note 8T, the cache can take up to 10-15 GB if never cleaned, and the system does not always delete it automatically correctly, for example, after the MIUI update, temporary files weighing up to 1-2 GB are left that are not deleted without manual intervention.

⚠️ Warning: Don’t confuse cache with app data!Cache cleaning is safe, and deleting data (such as in WhatsApp or games) will result in loss of progress or messages.

Method 1: Clearing the cache of individual applications

The easiest and safest method is to remove the cache for specific programs, which does not affect personal data, but frees up space and speeds up the work of “voracious” applications like Facebook, TikTok or Google Chrome.

Instructions:

  1. Open Settings → Applications → Application Management.
  2. Select an app (such as YouTube).
  3. Press Warehouse.
  4. Tap Clear Cache (not to be confused with Clear Data!).

For convenience, sort the applications by cache size:

  1. In the Application Management menu, click on three dots (⋮) top-right.
  2. Select Sort. → By size.
  3. Clear the cache from applications that are larger than 100-200 MB.

🎵 Spotify (music cache)

📷 Instagram (story cache and photos)

🌍 Google Maps (Cache of Maps)

🎮 PUBG Mobile/Call of Duty (cache texture)

📺 YouTube (cash video)

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Redmi Note 8T is particularly fast growing cache messengers (Telegram, Viber) and social networks, for example, Telegram can accumulate up to 1-2 GB of cache in six months of active use, even if you do not download files.

Method 2: Automatically clean the cache through “Optimization”

MIUI has a built-in garbage cleanup tool called Optimization (formerly called Security) that removes unnecessary files, including cache residues, temporary data, and empty folders, a method that is suitable for those who don’t want to dig through the settings manually.

How to use:

  1. Open the Optimization application (icon with brush).
  2. Click Cleanup (or Garbage in older versions of MIUI).
  3. Wait for the scan (usually 10-30 seconds).
  4. Select categories for cleaning: 🗑️ Application cache - temporary files. 📁 Unnecessary files – residues after uninstallation of programs. 🔍 Residues APK — installer.

Clean up

Clean up the trash

📊 How often do you clean your Xiaomi cache?
Once a week.
Once a month
Only when the phone is slowing down.
Never cleaned.
I don't know what it is.

Unlike manual cleaning, this method removes the cache of all applications at once, but does not affect the system cache. After the procedure, some programs (for example, the Google Play Store) can run a little longer on the first opening – this is normal, since the cache is created again.

⚠️ Warning: If the phone is even slower after cleaning through Optimization, it may not be the cache that is the problem, but the memory fragmentation. MIUI through settings → Warehouse → Defragmentation).

Method 3: Cleaning the system cache (for power users)

System cache (/cache) store temporary files MIUI And Android, including update data, log files and Google cache. Cleaning it can solve the interface lag problem, but it requires caution. 8T There are two ways to do this: through the river or through the ADB.

Method 1: Through stock Recovery

  1. Turn off the phone.
  2. Press Volume Up + Power and hold for 10 seconds until the MI logo appears.
  3. In the Recovery menu, select Wipe & Reset → Wipe Cache (control – volume buttons, confirmation – power button).
  4. Confirm the action and wait for the completion.
  5. Restart the phone (Reboot).

You can clean Dalvik cache only through custom recavers (for example, TWRP):

  1. Boot to TWRP (click Volume Up + Power).
  2. Go to Advanced. → Wipe Dalvik Cache.
  3. Confirm the swipe.
  4. Reboot the phone.

After cleaning the Dalvik cache, the phone will take longer to boot (up to 5-10 minutes), as the system re-optimizes all applications.

💡

If the phone has been stuck on the MI logo for more than 15 minutes after cleaning the Dalvik cache, don't panic. Wait until the process is complete (it can take up to 20 minutes). If the screen is out, press the power button to wake the device up, but don't force it to restart!

Method 5: Complete reset (last chance)

If none of the methods worked, and the Redmi Note 8T still slows down, then you have to hard reset, which is a full factory reset, and it will delete all the data, including apps, photos and accounts, so back up first:

  • 📱 Through Settings. → The phone. → Backup (saves contacts, SMS, setting).
  • ☁️ Google Account (Photos, Contacts, Calendar).
  • 💾 Manually copy important files to a PC or flash drive.

Resetting instructions:

  1. Open Settings → About the phone → Reset settings.
  2. Choose to erase all data.
  3. Enter your password (if installed).
  4. Confirm the reset.

Once reset, the phone will look like new.

  • 🔑 Sign in to your Google account (otherwise you will not be able to download applications).
  • 📥 Recover data from backup.
  • 🔄 Update MIUI until the latest version (unless the reset has solved the lag problem).

⚠️ Attention: On the Redmi Note 8T With the unlocked bootloader after the reset, you may need to re-assign your Mi Account. If you forget the password, the phone may be locked.

How to prevent fast filling of cache

To avoid cleaning the cache every week, follow these tips:

  • 🚫 Limit the cache for individual applications. For example, in Google Chrome you can set a limit: Open Chrome Settings → Confidentiality → Clear the data. Select Additional and tick only cookies and site data and cached images.
  • 📵 Turn off autoload multimedia in instant messengers (WhatsApp, Telegram).
  • 🔄 Update regularly MIUI — In new versions optimized work with cache.
  • 🛡️ Use lightweight versions of apps (e.g. Facebook Lite, Messenger Lite).