How to Clean Xiaomi Redmi Properly 4A: From software trash to physical cleaning

Xiaomi Redmi Smartphone 4A It is still a popular budget device, despite the release of more modern models, but over the years its performance inevitably declines: applications begin to slow down, memory is clogged with unnecessary files, and the system works slower. The reason for this is not the ageing of iron, but the accumulated digital garbage.This article will help you get your Redmi back. 4A previous speed - from cleaning the cache and removing unnecessary data to physical cleaning of connectors and the case.

We will analyze all possible methods of cleaning: software (through settings and third-party utilities), hardware (cleaning contacts and speakers), and give recommendations for prevention. 4A, such as problems with memory chips after improper cleaning or specificity of work with the MIUI If your smartphone starts to run out in a few hours or constantly produces errors "Not enough memory" - you're in the right place.

1. Diagnosis: what exactly should be cleaned?

Before you start cleaning, it’s important to understand what kind of problem is slowing your Redmi down. 4A. Smartphones can “lay down” for various reasons:

• 📱 Scored memory: less than 1 GB of free space on internal storage.
• 🗑️ Cache: Temporary application files take up hundreds of megabytes.
• 🔄 Background processes: autobooting unnecessary services eats up RAM.
• 🔋 Worn-out battery: Fast discharge may be linked to 'junk' processes.
• 🔌 Polluted connectors: dust in ports USB 3.5 mm causes poor contact.

To determine the bottleneck, follow simple steps:

1. Open the Settings. → The phone. → Memory status and check the free space.
2. Run Settings. → Annexes → All applications, sort by cache size.
3. Install the AccuBattery app (free in Play Market) to analyze battery wear.

If there is less than 10% free memory and the cache takes more than 500 MB, start with software cleaning. If problems persist even after memory is freed, move to hardware methods.

2. Memory Cleanup: Delete Unnecessary Files and Applications

Redmi 4A It has only 16 GB of internal memory (of which it is available). ~10 to 12GB), so even a few gigabytes of garbage can paralyze a system. Start with manual cleaning:

Removal of unnecessary annexes

MIUI He likes to install pre-loaded apps (bloatware), many of which are useless:

1. Go to Settings → Applications → All applications.
2. Sort the list by size (click on the three dots in the upper right corner).
3. Select unnecessary apps (e.g. Mi Video, Mi Music, Browser) and click Delete.

⚠️ Note: Do not remove system applications with icons MIUI (For example, security or settings – this can cause failures!

Clearing the cache and application data

Cache speeds up the software, but it grows to giant sizes over time.

• 🧹 For individual applications: Settings → Annexes → [Select the application] → Clear the cache.
• 🧹 For all applications at once: Settings → Memory. → Clear the cache (button at the bottom of the screen).
• 🚮 For complete data cleanup (including settings): Use the “Clean Data” option (but note that this will reset the app to factory settings).

Pay special attention to messengers (WhatsApp, Telegram) and social networks — they often store gigabytes of media files. In the settings of these applications, find the Storage section and delete unnecessary photos / videos.

2.3. Search and delete large files

MIUI hides some folders from the user, but they can be accessed through the file manager:

1. Open Files (standard MIUI application).
2. Go to the Categories section and sort the files by size.
3. Remove the old ones. APK-files (Download folder), backup copies (MIUI/Backup), cache (Android/data).

If you have it installed SD-map, transfer media files (photos, videos, music) to it through Settings → Memory. → Data portability.

3. System optimization: disabling background processes

Even after the Redmi memory was cleaned. 4A It can work slowly due to background processes. MIUI It's aggressively using RAM, leaving little resources for active tasks:

3.1. Disable the autoloading of applications

Many apps are launched when the phone is turned on and run in the background, eating up memory and charge.

1. Go to Settings. → Permits → Autoboot.
2. Turn off autoplay for all unnecessary apps (especially for games and social networks).

⚠️ Note: Do not disable autoboot for Google Play Services and MIUI Security – This can disrupt the system.

Set-up of performance mode

MIUI Has hidden settings to optimize work on weak devices:

1. Activate Settings → Additionally. → Performance mode (if no option is available, update) MIUI last-minute).
2. Select Battery mode – it limits background processes.

It is also useful to disable the interface animation:

Settings → About Phone → MIUI version (click 7 times to turn on Developer Mode)


Settings → Additional → For developers → The scale of the animation window / transition (set 0.5x)

3.3. Use of Lite versions of applications

Redmi 4A It's not designed for today's heavy-duty applications. Install lightweight versions:

• 📱 Facebook Lite instead of the standard Facebook;
• 📷 Instagram Lite (available in some regions);
• 🎵 Spotify Lite or YouTube Go;
• 📧 Gmail Go instead of Gmail.

These versions consume 2-3 times less memory and are more stable.

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If the phone is still slowing down after cleaning, try rolling back. MIUI Update to an earlier version (e.g. 9.6 or 10.2) – new updates are often optimized for more powerful devices.

4.Deep cleaning: reset to factory settings

If all previous methods failed, the last resort is hard reset, which will delete all data, but return the phone to its original speed.

Preparation for discharge

Before discharge, it is mandatory:

• 📤 Make a backup of contacts (Contacts) → Settings → Imports/Exports).
• 🖼️ Save photos and videos to your computer or cloud (Google Photos, Mi Cloud).
• 📝 Write down logins/passwords from accounts (they will be deleted!).

Use the standard Backup application (Settings) → Additionally. → Backup, but remember: it doesn’t save some application settings.

4.2. Performance of discharge

There are two ways to discharge:

1. Through Settings: Settings → Additionally. → Recovery and discharge → Reset. Select "Erase Everything" and confirm.
2. Using Recovery Mode (if the phone doesn't turn on): Turn off the phone. Press Volume up. + Food before the appearance of the logo MI. Choose Wipe Data → Wipe All Data (Manage volume buttons).

Once reset, the phone will reboot and be like new. Don't restore the backup right away - check the clean system's speed first.

5. Hardware cleaning: connectors, speakers and body

Dust, dirt and oxidation of contacts are a common cause of Redmi’s “glitches” 4A. Physical cleaning can solve problems with charging, sound or connecting headphones.

5.1. Cleaning of the charging connector (Micro-USB)

If the phone is not charging well or the cable is falling out, the problem is the contaminated port.

• 🔦 Light the connector with a flashlight - if dust or debris is visible inside, it must be cleaned.
• 🧼 Use a plastic toothpick (NOT metal!) or compressed air (a canister to clean the appliances).
• 💧 For oxidized contacts: moisten the cotton swab in isopropyl alcohol (at least 90%) and gently wipe the contacts.

⚠️ Warning: Do not use needles or pins - they can damage the contacts! If after cleaning the charging has not recovered, the problem may be in the power controller (repair required).

Cleaning of speakers and microphone

If you are not hearing well or the sound is quiet:

1. Find the speaker and microphone holes (usually at the bottom of the case and next to the main camera).
2. Carefully remove the dust with compressed air or a soft brush.
3. For persistent contaminants, use the sticky side of the scotch (glue and tear off - this will remove dust particles).

Do not blow into the connectors with your mouth - moisture from your breath can cause corrosion!

Cleaning of the shell and screen

To clean the case and display:

• 🧴 Use a microfiber cloth (as for glasses) and a special liquid for screens (or a mixture of water and vinegar in a 1:1 ratio).
• 🚫 Avoid products with abrasives or ammonia (they will damage the oleophobic screen covering).
• 🔋 To clean the back panel, remove the case and wipe the surface with a wet wipe.

If dust has accumulated under the screen glass, do not try to remove it yourself - this requires disassembling the device.

Prevention: How to prevent re-contamination

To Redmi. 4A Stay clean and fast for longer, follow simple rules:

• 📵 Delete cache and unnecessary files once a month.
• 🔄 Check Auto-Downloading Applications Regularly.
• 📥 Do not install programs from unknown sources (virus risk).
• 🔋 Use an original or certified charging cable (cheap cables contaminate the connector faster).
• 📦 Keep your phone in a dust-proof case.

It’s also helpful to disable automatic app updates in Google Play (to avoid the background loading of major updates).

If you install/remove programs frequently, consider using them. SD-Cards as internal memory (Settings function) → Memory. → SD-map → Internal memory. But remember: SD-lower-class UHS-I (U1) They will slow down the system even more!

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Regular cache cleaning and disabling app autoloads could increase Redmi's speed 4A 30-50% without buying a new phone.

7. Alternative methods: firmware and custom solutions

If standard methods don't work, you can try more radical measures, but they require experience and can lead to loss of warranty or "bricking" the phone.

Installation of custom firmware

Stock-stock MIUI It is not always the best for Redmi. 4A. Alternative firmware (like LineageOS or Pixel Experience) can improve performance:

• ✅ Pros: Less Bloatwar, More Recent Versions of Android.
• ❌ Cons: risk of data loss, possible bugs with the camera or sensors.

The installation will require:

1. Unlock the bootloader (fastboot oem unlock).
2. Install custom recovery (TWRP).
3. Sweep ZIP-Firmware file through recovery.

⚠️ Attention: On Redmi 4A With Snapdragon 425 processor, some custom firmware may not support hardware video acceleration!

7.2. Use of root rights

Root gives you complete control of the system, but it's dangerous for beginners.

• 🗑️ Remove all system applications (including MIUI-service).
• 🔧 Optimize the processor core to save charge.
• 📱 Install Greenify to “freeze” background processes.

To obtain root rights:

1. Unlock the bootloader (as in paragraph 7.1).
2. Sweat Magisk through custom recovery.

Remember: With root rights, you lose the ability to update over the air» (OTA) Security risks (viruses can access system files).

FAQ: Frequent questions about cleaning up Redmi 4A