Memory cleanup on Xiaomi Redmi 5A: from cache to factory settings

Xiaomi Redmi 5A

lack of built-in memory

In this article, we’ll look at all the working ways to make room on the Redmi 5A, from basic (cache removal) to radical (factory reset), focusing on safe methods that won’t damage data, and hidden MIUI features that few people know about, and why even after cleaning, memory can “disappear” on its own — and how to stop it.

Before you start, check how much space is actually occupied. Go to Settings → About Phone → Memory. If it displays less than 1 GB of free space, the smartphone is already at its limit. But don't rush to delete everything: some files are critical to system stability.

1. Deletion of cache and junk files

The fastest way to free up 1-3GB of storage is to clear the app cache and system debris. On the Redmi 5A, this can be done either manually or with built-in MIUI tools.

Cache is a temporary file that creates applications to speed up work, like YouTube saves thumbnails of videos, Chrome saves copies of pages visited, over time these files accumulate and take up gigabytes, deleting the cache is safe: apps will simply create it again the next time they run.

How to clear the cache of individual applications:

1. Open the Settings → Applications.
2. Select an app (such as Facebook or WhatsApp).
3. Click Clear Cache (not to be confused with Clear Data!).

For mass cleaning, use the built-in utility:

1. Go to Settings → Memory → Cleanup.
2. Click Clean up garbage (the system will scan unnecessary files).
3. Check the boxes of the Cash applications, Downloads (if there is unnecessary) and Logs.
4. Confirm the cleanup.

🗑️ Application cache (will not damage data)

📁 Downloads (check if there are any important files)

📜 Logs and dumps (systemic debris)

🎵 Media files miniatures (restore automatically)-->

⚠️ Warning: Do not clear the Application Data (Clear Data button) unless you want to lose your logins, settings and game progress, such as WhatsApp, which will result in the removal of all chats.

Once cleaned, reboot your phone, which will help the system correctly recalculate the free space. If the cache accumulates too quickly (for example, in a day), check the applications for memory leaks. Common culprits are TikTok, Instagram and instant messengers with automatic downloading media.

2. Transfer of files to SD-map

Redmi 5A supports microSD cards up to 256 GB, but many users don’t know how to transfer data to it correctly. Just copying files through Explorer is not enough – you need to configure the default save.

How to transfer files to SD-map:

1. Insert a memory card (format it as Portable storage, not Internal memory, otherwise errors may occur).
2. Open the Settings → Storage.
3. Press on. SD-map → Transfer data (available for photos, videos and some applications).
4. For new files, install SD-map as default storage: Settings → Camera. → Warehouse → SD-map.

Not all apps can be migrated to a memory card, for example, WhatsApp and Telegram do not support this feature due to data protection, but media files (photos, videos, music) and documents are ported without problems.

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If the phone can't see SD-Map, try formatting it into FAT32 You can use a computer to do that. SD Formatter (official instrument) SD Association).

One important caveat: Do not remove the memory card while applications that use it to store data are running, and this can damage the files. SD-map, first mount it in the settings: Settings → Warehouse → SD-map → Extract.

⚠️ Attention: If you are using SD-The card is called Adoptable Storage, and it can't be retrieved without losing data. It can also cause lags on weak devices like Redmi. 5A.

3. Removal of unnecessary applications and duplicates

The average user installs 40-60 apps, but actively uses no more than 15. The rest take up space, consume resources in the background and update without your knowledge. On Redmi 5A, with its modest 16/32 GB each megabyte counts.

How to find and remove unnecessary applications:

1. Open Settings → Applications → Application Management.
2. Sort the list by size (click on the three dots in the top right corner → Sort → by size).
3. Look at apps that are over 100MB long. Ask yourself, “Have I used this in the last month?”
4. Click on the unnecessary app → Delete.

Pay special attention to Xiaomi’s pre-installed apps (called “blots”), many of which cannot be removed by standard means, but you can disable:

• 📱 Mi Video, Mi Music, Mi Browser - Replace with Mi Video VLC, Spotify and Chrome.
• 📊 Analytics, Feedback – system utilities that can be turned off without consequences.
• 🎮 Games, Mi App Store – if you don’t use Xiaomi Store.

Removing embedded applications will require root rights, but Redmi 5A is risky, such as losing warranty or disrupting the system.

1. Go to Settings → Apps.
2. Select an unnecessary system application.
3. Click Disable (if the button is active).

Social networks (Facebook, TikTok)

Games (PUBG, Free Fire)

Messengers (Viber, Skype)

Systems (Mi Browser, Mi Video)

Nothing removed.-->

For example, photos can be stored simultaneously in the Gallery, Google Photos and the DCIM folder. Use applications like Files by Google or CCleaner to find duplicates. They scan memory and offer to delete duplicate files, saving up to 500 MB-1 GB.

4. Cleaning system files and updates

The MIUI system on Redmi 5A has a nasty feature: it hides some of the occupied space under the "system files." Often in Settings → Memory shows that 10-15 GB is occupied, but it is not clear what. Let's figure out how to fix this.

The main memory eaters:

• 📦 Update files: MIUI file /cache, But it doesn't always delete them after installation. 1–3 GB.
• 🗃️ Backups: If you have used the backup function MIUI, copies are stored /MIUI/backup.
• 📱 Residual files: After deleting applications, sometimes data folders remain (for example, /Android/obb play-off).

How to clean system files:

1. Delete old update files: Go to folder /cache via file manager (root or access via file manager) ADB). Delete files with the.zip extension and folders of the view update_*.
2. Clear /MIUI/backup if you don’t plan to recover data.
3. Check the /Android/obb folder – it stores additional game data (can take up to 5 GB).

To access hidden folders, use a root file manager (such as Root Explorer) or connect your phone to your computer in MTP mode and enable the display of hidden files.

⚠️ Attention: Do not delete folders /system, /data or files with the.odex,.apk extension in the root directory, which can make it impossible to boot the system.

If you’re not sure which file to delete, use Storage Analyzer (available on Google Play) to show which folders take up the most space and help you make a decision.

5. Reset to factory settings (last chance)

If all previous methods failed and the Redmi 5A has less than 500MB of free space, you’ll have to resort to a hard reset, which will delete all user data, but return the phone to its original state.

How to reset:

1. Back up your important data (contacts, photos, messages). Use Settings → Additional → Backup or cloud services (Google Drive, Mi Cloud).
2. Go to Settings → Additional → Recovery and Reset.
3. Select Resetting → Delete all data.
4. Confirm the action (you will need to enter a pattern lock or PIN).

Once reset, the phone will reboot and prompt you to configure it as new. Don't restore the data from the backup right away -- first check how much memory is available. If space is vacant, move the files gradually to identify the "gluttonous" application.

⚠️ Attention: On Redmi 5A Reset can take up to 10-15 minutes. Do not interrupt the process, even if the screen is stuck on the logo for a long time. MI. Premature power outage will damage system files.

An alternative way to reset is through Recovery Mode:

1. Turn off the phone.
2. Press the Power + Volume buttons up until the Mi logo appears.
3. Select the language, then Wipe Data → Wipe All Data.
4. Confirm the action and wait for the completion.

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Resetting to factory settings is the only way to remove system debris that is not manually cleaned, but use it only as a last resort, as all data will be lost.

After reset, install only the most necessary applications and keep an eye on the occupied space. If the memory begins to disappear again, the problem may be in the damaged firmware, in which case only the firmware will help.

6.Memory optimization to prevent filling

Cleaning up memory is good, but it's even better to keep it from filling up. On a limited-storage Redmi 5A, it's critical. Here are some tips for prevention:

• 📸 Camera settings: Set the photo shooting in 8 MP resolution instead of 12 MP (saves) ~30% of the space. Turn off the save. RAW-photo.
• 🎵 Streaming music: Use Spotify or YouTube Music instead of downloading tracks. If you download, choose 96 kbps quality.
• 📥 Autoboot in messengers: In WhatsApp and Telegram, turn off the automatic download of photos / videos: Settings → Data and storage → Autoboot media.
• 🔄 Wi-Fi Updates: Stop apps from updating over the mobile internet (saves space, as updates are only downloaded when connected to Wi-Fi).

Another useful trick is to limit the background activity of applications, where many programs (like Facebook or Instagram) continue to run in the background, consuming memory and battery power, to stop this:

1. Go to Settings → Battery and Performance → Battery Management.
2. Select the application and set a Background activity limit.

To automatically clean the cache, set up the task scheduler:

1. Open the Security app (shield icon).
2. Go to the cleaning → Settings → Auto Cleaning.
3. Turn on the option and set a schedule (for example, once a week).

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If you shoot videos frequently, install the Google Files app, which automatically prompts you to delete blurry photos, screenshots, and duplicate files.

Last tip: regularly check your memory. Make a habit of going to Settings once a month → Memory and analyzing what takes up the most space, which will help to avoid a situation where the phone suddenly stops working due to lack of free space.

7 What if the memory "disappears" on its own?

Many Redmi 5A owners have a strange problem: memory fills up for no apparent reason, like yesterday it was 2GB free, today it's 500MB, even though you didn't install anything. What's the matter?

The main reasons for the “disappearance” of memory:

• 🔄 Updates MIUI: The system downloads firmware in the background (weight - up to 1.5 GB).
• 📁 Logs and dumps: When the system fails, it creates reports in /data/tombstones.
• 🛡️ Antivirus and security: Security application can download virus databases.
• 📱 File system errors: Damaged memory sectors appear as occupied.

How to find and fix the problem:

1. Check the /cache folder for large files (see section 4).
2. Turn off automatic update download: Settings → The phone. → Updating the system → Settings (⚙️) → Auto-update.
3. Delete logs: use the root file manager or command: adb shell rm -rf /data/tombstones/*
4. Check your memory for errors: connect your phone to your PC and use the chkdsk utility (for Windows) or fsck (for Linux/Mac).

If the problem is repeated, it may be damaged firmware or worn out flash memory (especially relevant for models 2017-2018 release), in this case, only flashing through Fastboot or replacing the memory module (which is not advisable for a budget phone).

FAQ: Frequent questions about cleaning Xiaomi Redmi memory 5A