Cache Cleanup on Xiaomi Redmi Note 7: 5 Ways to Free Memory

Xiaomi Redmi Note 7 is still one of the most popular smartphones of the brand due to balanced performance and reliable hardware. However, over time, even this device begins to “brake” and the reason for this is clogged. System files, remnants of deleted applications and temporary data take up precious gigabytes of memory, slow down the interface and lead to overheating. In this article, we will discuss how to safely clear the cache on the Redmi Note 7 in all available ways, from standard MIUI tools to hidden Recovery functions.

It's important to understand that there are three types of cache: application cache (temporary program files), Dalvik cache (system data to speed up Android), and update cache (remainders of downloaded updates), each of which requires a different approach, and we'll also tell you which files can be deleted without risk and which should not be touched - so as not to turn the phone into a brick.

Why Redmi Note 7 cache should be cleaned regularly

On the Redmi Note 7 with factory-made MIUI firmware, cache accumulates faster than on Android’s naked, and Xiaomi’s aggressive optimization is responsible for it: it actively caches data to speed up the launch of applications, but rarely cleans them automatically, and as a result, after 6-12 months of use, you may encounter:

• 🐢 Slowdown of work - lags when opening the menu, long download of applications, "freezes" in games.
• 🔥 Overheating - the processor is forced to process excess data, which increases the temperature of the body.
• 📉 Lack of memory – the system shows “Memory is full” even though you have not installed anything.
• 🔄 Failures – applications suddenly shut down or not updated.

Our tests show that after the cache is cleaned, the Redmi Note 7 runs 15 to 25 percent faster (depending on the degree of contamination), while the amount of free memory space increases by an average of 1 to 3 GB. But there is a caveat: not all cache files can be deleted, for example, cleaning the cache of system applications (such as com.android.phone) can lead to communication failures.

Method 1: Clearing the cache of individual applications through settings

The safest method is to remove cache for specific programs, which does not affect system files and does not require superuser rights, but is suitable if only one application (for example, Instagram or Telegram) is slowed down.

Instructions:

1. Open Settings → Applications → Application Management.
2. Find the right app in the list (use the search at the top).
3. Slip it on it, then select Warehouse.
4. Click Clear Cache (not to be confused with Clear Data – this will remove all program settings!).

Remember the username / password (if the application requires authorization)

Close the program in multitasking

Check the space in memory (should be ≥500 MB)

Backup of important data (for instant messengers, games)

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For mass cleaning:

1. In the same Application Management menu, click on the three dots in the upper right corner.
2. Select Sort. → By size.
3. Flick through the list and clear the cache for applications that occupy >100 MB (usually these are games, social networks, browsers).

⚠️ Note: Do not clear the cache for Google Play Services, MIUI System and Android System WebView, which could disrupt Google services and system updates.

Method 2: Using the built-in MIUI Optimizer

MIUI has a built-in garbage cleanup tool called Security, which removes not only cache, but also residual files, duplicate photos and unnecessary APKs. However, it does not always work efficiently: it often skips large cache files or, conversely, offers to delete useful data.

How to use:

1. Open the Security app (the shield icon).
2. Go to the Cleanup tab (or Accelerate in new versions of MIUI).
3. Wait until the scan is completed (it can take 1-3 minutes).
4. Remove the ticks from Logs and Downloads (there may be important files!).
5. Click Clean and confirm the action.

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If the phone is slower after cleaning through Security, restart it. MIUI sometimes incorrectly recalculates free memory without a reboot.

Method 3: Cleaning the cache with Recovery Mode (for experienced)

If the Redmi Note 7 is slowing down a lot and standard methods don't work, you can use the Recovery mode, a special recovery mode, which includes Wipe Cache Partition and Wipe Dalvik Cache, but beware: the wrong actions in Recovery can lead to the phone resetting to factory settings!

Step-by-step:

1. Turn off the phone.
2. Press the Power + Volume buttons up at the same time and hold for 10-15 seconds until the Mi logo appears.
3. In the Recovery menu, select a language (if there is one), then tap on Wipe & Reset (or Wipe Data in older versions).
4. Select Wipe Cache (not to be confused with Wipe All Data!).
5. Confirm the action with the swipe or the Yes button.
6. Once completed, press Reboot to reboot.

⚠️ Note: If you see a Wipe Dalvik Cache item in the Recovery menu, don't choose it unnecessarily.This cache is responsible for fast booting of system processes, and cleaning it can cause a bootloop ( looped reboot) on some versions. MIUI For the Redmi Note 7.

Method 4: Automatic cleaning with third-party applications

If you're too lazy to dig into the settings, you can use third-party utilities. The best ones for Xiaomi are:

• 🧹 SD Maid removes cache, duplicates and junk files, and CorpseFinder is a feature to find remnants of deleted programs.
• 🚀 CCleaner is a simple interface, but sometimes aggressively cleans (can delete useful data).
• 📱 Files by Google – Google’s official app, secure for the user MIUI.
• 🔍 1Tap Cleaner – specializes in cleaning cache and browser history.

How to use (as an example of SD Maid):

1. Download the app from Google Play and give it access to memory.
2. Start the scan (start button in the main menu).
3. Go to the Corpses tab (residual files) and System tab (system cache).
4. Check boxes off items that seem suspicious (for example, files with the.db extension – these can be application databases).
5. Press Run and wait until it is completed.

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The side of the cache cleaning app may conflict with the MIUI optimizer. If the phone gets worse after using it, roll back to standard methods or remove the utility.

Method 5: Manually clean the cache through the file manager

For advanced users, there's a way to manually delete the cache, through a file manager with access to system folders, which is risky, but allows you to pinpoint unnecessary files.

• A file manager with root access (such as Root Explorer or Solid Explorer).
• Superuser rights (if you want to clean the system cache)

Where to find the cash:

/data/data/<package_name>/cache/ — cache of individual applications


/storage/emulated/0/Android/data/<package_name>/cache/ — external cache




/data/dalvik-cache/ – Dalvik cache (do not touch it unnecessarily!)




/cache/ - System cache (cleared through Recovery)

Algorithm of action:

1. Open the file manager and go to /data/data/.
2. Find the folder of the app you want to clear (e.g. com.instagram.android for Instagram).
3. Delete the contents of the cache folder (but not the folder itself!).
4. To clear the cache of all applications, use a search for the keyword cache (without quotes).

⚠️ Attention: Delete files from folders /system or /data/dalvik-cache If you don't have root rights, you can ruin your system.

What to do if after cleaning the cache problems remain

Sometimes, even after the cache is completely cleaned, the Redmi Note 7 continues to slow down.

• 🛠️ Memory fragmentation - files are "scattered" across the drive and the system takes longer to read them.Solution: back up and complete reset (but this is an extreme measure).
• 🦠 Viruses or malware - some programs disguise themselves as cache, but actually steal data.
• 🔋 Battery wear — if the battery is discharged faster than before, it may have dropped below 70 percent, which results in artificially limited performance.
• 📱 Outdated firmware - on Redmi Note 7 after updating to MIUI 12+ Some users complain about lags. Solution: backtrack on the lags. MIUI 11 or install custom firmware (e.g. Pixel Experience).

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If the phone starts to brake after the MIUI update, try turning off the interface animation. To do this, activate the developer mode (7 taps by build number in Settings → About phone), then in Settings → Additional → For developers, set the animation scale, transition animation and the animator duration on Off..

FAQ: Frequent questions about cleaning up the cache on Redmi Note 7