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

Xiaomi Redmi Note 8T is one of the most popular smartphones in the budget segment, but even it eventually begins to slow down. The main reason for the slowdown is a crowded cache that takes up precious space in memory and slows down the system. In this article, we will discuss how to properly clean the cache on the Redmi Note 8T without risking losing important data, what types of cache exist and when it is really necessary to clean it.

Many users confuse cache with junk files or temporary application data. In fact, cache is a buffer memory that stores frequently used data for quick access. For example, when you open Instagram or YouTube, the app downloads some of the content from the cache, rather than downloading it again. However, over time, this buffer grows to giant sizes, taking up to 5-10 GB of memory. On Redmi Note 8T with its modest 64/128 GB of storage, this becomes a critical problem.

Unlike hard reset, cache cleaning doesn’t delete your photos, contacts, or messages, but there’s a nuance: some applications may be slower when they first run because they’ll have to reload the data, we’ll show you how to clean the cache selectively (only for individual applications) and globally (only for the entire system), and we’ll also look at hidden cache types that most users don’t even know about.

1.When do I need to clear the cache on the Redmi Note 8T?

You don't have to clean the cache just in case, because it can have the opposite effect: applications will have to waste traffic and time re-uploading data.

• 📉 The phone noticeably slows down when switching between apps or opening menus.
• 📱 Memory is 90 full%+, You have not installed any new games or apps.
• 🔄 Applications fly out or work incorrectly (for example, do not load pictures in Vkontakte or Telegram).
• 🔋 Battery discharges faster than usual – a crowded cache can cause increased background energy consumption.
• 📶 Mobile Internet or Wi-Fi is unstable (cache) DNS or network settings may conflict).

If the phone is stable and there is enough free memory (15-20% of the total), cleaning the cache will not be of any noticeable benefit, and after cleaning some applications (such as Google Maps or Yandex.Maps) will be loaded longer on the first run, because they will have to cache the cards again.

⚠️ Attention! Don't confuse cache with application data. Clearing the cache is safe, and deleting the data (Clear the data in the settings) will result in resetting all application settings and logging out of the account.

2. How to clear the cache of individual applications

If the problems only occur with specific programs (like Facebook or TikTok), it makes sense to clear the cache only for them.This does not affect system files and does not require a reboot.

Instructions for Redmi Note 8T:

1. Open Settings (the gear icon on the main screen).
2. Go to the Appendix section → Application management.
3. In the list, find the desired application (such as Chrome or WhatsApp) and tap it.
4. Select Warehouse.
5. Click Clear cache. If the button is inactive, the cache is already empty.

For convenience, you can sort applications by cache size:

• 📊 In the Application Management section, click on three dots in the upper right corner.
• 🔽 Select Sort by Size.
• 🔍 Scroll down the list – the most “glutty” apps will be at the top.

On the Redmi Note 8T, the following applications are especially often cache:

⚠️ Attention! After clearing the Google Play cache, the Store may not temporarily update the apps.Reboot the phone if you have trouble downloading updates.

3. Global cache cleanup (all applications at once)

If you want to remove the cache of all apps at once without going into the settings of each individually, use the built-in Cleanup function in MIUI. This method is suitable if the phone is severely slowing, but you do not want to perform a factory reset.

Step-by-step:

1. Open the Security app (shield icon with a tick).
2. Go to the Cleaning tab (broom icon).
3. Wait for the scan to be completed (usually 10–30 seconds).
4. Click Clean in the Garbage Files or Cash Applications section.
5. Confirm the action by pressing OK.

This method removes:

• 🗑️ Cache of all user applications.
• 📂 Temporary file systems processes.
• 🔄 Residual data after uninstallation of programs.

On the Redmi Note 8T, after the global cache clearing, the sound may temporarily disappear in the speaker or microphone, which is due to the reboot of MIUI audio services. Solution: restart the phone or turn on / off the aircraft mode.

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If the applications are slower after cleaning the cache, give them time to re-caching the data, and after 1-2 days, the speed will return to normal.

4. Cleaning Dalvik cache (for power users)

Dalvik cache is a special type of cache that is used by Android to speed up the launch of applications. Unlike a regular cache, it is not cleared through standard settings and requires access to recovery mode. On the Redmi Note 8T, this method is recommended only if:

• 🐢 The phone is extremely slow to launch applications (hangs at 10).+ seconds).
• 🔧 You recently updated your firmware and encountered errors.
• 📱 The memory is filled with unknown files in the section /cache.

Instructions for cleaning Dalvik cache:

1. Turn off the Redmi Note 8T.
2. Press the Power + Volume buttons up at the same time and hold them for 10-15 seconds until the MI logo and the Recovery menu appear.
3. Use volume buttons for navigation and select Wipe & Reset (on some firmware – Advanced).
4. Select the Wipe Dalvik Cache.
5. Confirm the action by selecting Yes.
6. Once completed, go back to the main menu and select Reboot → System.

⚠️ Don’t confuse the Wipe Dalvik Cache with Wipe Data – the latter option will reset the phone to factory settings and delete all your data!

5. Automatic cache cleaning: MIUI settings

MIUI on the Redmi Note 8T offers automatic cache cleaning tools that work in the background, which is convenient if you don't want to manually monitor memory status.

• ⚡ It only deletes junk files, not the entire cache.
• ⏳ Can slow down your phone during scanning.
• 🔄 Not always cope with the cache of system applications.

How to set up automatic cleaning:

1. Open Security. → Cleanup.
2. Slip on the gear icon in the upper right corner.
3. Activate the Autoclean switch.
4. Select frequency: Daily, Every week or When locking the screen.
5. In the Exclusions section, add applications that do not need to be cache-cleaned (for example, navigators or instant messengers).

MIUI also has Deep Cleanup, which removes not only the cache, but also the residual files after uninstallation of programs, to enable it:

1. Go to Security → Cleaning → Settings.
2. Activate the option of Deep Scanning.
3. Run the cleaning manually or wait for the automatic scan.

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Automatic cache cleaning in MIUI is not a substitute for manual cleaning. For maximum effect, it is recommended to combine both methods: automatic garbage removal + periodic manual cleaning of the cache of problematic applications.

6.Cache cleaning through the engineering menu (for advanced)

If standard methods don't work, you can use the engineering menu (#4636##) to clear the cache at a lower level, including network settings and communication module data. Be careful - wrong actions in the engineering menu can disrupt the phone.

Instructions:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. In the menu that opens, select Battery Information (don’t be afraid of the name – there are other settings).
4. Slip on three dots in the top right corner and select Clean Usage Statistics.
5. Confirm the action.

It'll clear:

• 📡 Network connection cache (can help with Wi-Fi or mobile internet problems).
• 🔋 Battery consumption statistics (useful if the phone displays charge level incorrectly).
• 📱 Application usage data (does not affect their performance).

⚠️ Attention! Do not change other options in the engineering menu unless you know what they are intended for, for example, changing the settings of Radio Band can lead to loss of network.

7. Alternative methods: via PC and ADB

If the phone is heavily contaminated or unresponsive, you can clear the cache with your computer and Android Debug Bridge (ADB), a method that is suitable for advanced users, as it requires installing drivers and working with the command line.

What you need:

• 🖥️ Computer with Windows, macOS or Linux.
• 🔌 USB-cable (preferably original).
• 🛠️ Installed Xiaomi drivers USB Drivers.
• 📦 Utility. ADB (You can download from the official Android website).

Step-by-step:

1. Turn on Redmi Note 8T Developer Mode: Go to Settings → About Phone. Tap the MIUI Version 7 times until the notification appears You became a developer!

Settings → Additional → For Developers

USB debugging

File transfer

Win + R → cmd

adb devices

Make sure the device is identified (should appear its serial number).

adb shell pm trim-caches -d 1000000000

(where 1000,000,000 is the maximum cache size in bytes that can be cleaned).

adb shell rm -r /data/dalvik-cache/*

This is the most effective method, but it requires caution, such as an incorrect command that can delete important system files.

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Use ADB only if other methods have not worked. Before clearing the cache through the command line, back up your data in case of a failure.

FAQ: Frequent questions about cleaning up the cache on the Redmi Note 8T