Transfer applications to memory card in Xiaomi Redmi 4A: a complete guide with the nuances of MIUI

Xiaomi Redmi 4A owners often face a shortage of internal memory — especially if the device is used as the main smartphone for instant messengers, social networks and games. Even after cleaning the cache and removing unnecessary files, the free space melts before your eyes. The solution seems obvious: transfer applications to a microSD card. But in MIUI, this process has its own peculiarities, and the standard Android functionality here does not work as on “clean” firmware.

In this article, we’ll look at all the ways you can port applications, from the built-in MIUI 8/9/10 tools (relevant to Redmi 4A) to manual methods using ADB and third-party utilities, which applications can be ported without risk and which will remain in internal memory despite all efforts, and we’ll analyze why some programs start to run slower or even refuse to run after transfer — and how to avoid this.

Why at Redmi? 4A You cannot transfer all applications to SD-map?

The main problem lies in the architecture of Android 6.0 Marshmallow, which runs Redmi. 4A. Google introduced the concept of Adoptable Storage, which is the ability to format a memory card as part of internal storage. MIUI This feature is limited, leaving users with only partial solutions:

• 🔹 Limited list of supported applications: Only those programs that the developer has explicitly allowed to port (usually large-cache games or underused utilities).
• 🔹 Impossibility of transferring system applications: MIUI Blocks the movement of pre-installed services (Mi Account, Security, Gallery, etc.).
• 🔹 Performance problems: Class memory cards 4/6 (typical of Redmi 4A) work 5–10 Slower than the internal memory of the eMMC 5.0, What is critical for heavy applications.
• 🔹 Risk of data loss: When extracting SD-maps without safely disabling portable applications may be damaged.

Besides, MIUI imposes its own limitations: for example, you can not migrate applications that use OBB-files (additional game data) or have active widgets on the home screen, even if you see the "Move to the port" button. SD" in the application settings, after clicking, a message “Portable is impossible” may appear – this means that the developer has blocked the function in the manifest APK.

Preparation of a memory card: formatting and selection of a file system

Before you port applications, you need to properly prepare the microSD card, which depends on whether you can use it as an extension of internal memory or only for storing files. Redmi 4A has two formatting options:

1. Portable Storage (FAT32/exFAT): The card will appear as a removable drive, and only applications that support this feature can be ported (the list is limited).
2. Internal Storage: The map is formatted as part of the system (ext4), but MIUI does not support this out of the box mode – a workaround will be required.

For most users, the first option is optimal, the second is only suitable if you are ready for possible glitches and loss of warranty (you need to unlock the bootloader).

Backup your card data (transfer will delete everything)|Check the class of the card (Class 10 is recommended)|Charge your phone at least 50%|Use the original card reader (not the original card reader). USB-adapter)-->

⚠️ Note: If you format the card as an internal storage device ADB, It can't be used in other devices without completely erasing the data, and it can cause disruptions. MIUI, if the card suddenly goes off.

Method 1: Transfer through MIUI settings (official method)

This is the easiest and most secure way, but it only works for a limited list of applications.

1. Insert the memory card in Redmi 4A and wait for it to be recognized.
2. Open the Settings → Applications.
3. Select the app you want to migrate (like Facebook Lite or Messenger).
4. Click on "Storage" (or "Memory" in older versions of MIUI).
5. If the "Move to" button SD-If the button is gray, you can't move it.

It takes 10 seconds to a few minutes depending on the size of the application.

• 📌 The application icon will remain in the same place, but the storage settings will be indicated "SD-map".
• 📌 Some of the data (cache, settings) may remain in internal memory.
• 📌 When you remove the card, the application will stop working until it returns.

💡

If the "Move to SD" button is inactive, try clearing the app's cache through Settings → Apps → [name] → Clear the cache. Sometimes this will unlock the function.

Method 2: Using ADB for forced transfer (advanced method)

If the official method doesn't work, you can try to force the application to move over Android Debug Bridge (ADB), which requires connecting the phone to the computer and basic command line knowledge. Importantly, on Redmi 4A, this method only works for applications that initially support portability, but MIUI blocks the button in the interface.

You'll need:

• 🖥️ Computer with Windows/Linux/macOS.
• 🔌 USB-cable (preferably original).
• 🛠️ Installed drivers Xiaomi and ADB (You can download from the Android Developers website).
• 🔓 Included debugging by USB (Settings → The phone. → Version. MIUI — Press 7 times, then return to Additional → For developers → Debugging by USB).

Instructions:

1. Connect Redmi 4A to your computer and confirm the debugging permission on your phone screen.
2. Open the command prompt (cmd in Windows) and type: adb devices Make sure the device is defined (should appear a string with a serial number).
3. Enter the port command (replace com.example.app with your app’s batch name, such as com.facebook.katana for Facebook): adb shell pm move-package com.example.app
4. If the command is executed without errors, restart the phone.

To find out the batch name of the application, use the command:

adb shell pm list packages | grep "keyword"

For example, to search for all apps with the word "facebook":

adb shell pm list packages | grep "facebook"

⚠️ Note: Some applications after forced transfer through ADB They can run unstablely or stop running, especially in games that are protected from piracy (for example, Clash of Clans or the Clash of Clans). PUBG Mobile).

Method 3: Forced formatting of the card as internal memory (Adoptable Storage)

This method allows us to use SD-The card is part of the internal storage, but it has serious limitations:

• 🔧 Requires unlock bootloader (bootloader), which resets the phone to factory settings and can deprive the warranty.
• 🔄 The card will be encrypted and will not be read on other devices.
• ⚠️ Risk of data loss when retrieving a card without secure shutdown.
• 🐢 System performance may fall if the card is slow (Class) 4/6).

If you are prepared for these risks, follow the instructions:

1. Unlock the bootloader on Redmi 4A via Xiaomi’s official website (up to 72 hours of process).
2. Install custom recovery (TWRP).
3. Download and patch the Adoptable Storage (e.g. MIUI Adoptable Storage Enabler).
4. Put it in. SD-map and go to Settings → Warehouse → SD-map → Set up → Internal memory.
5. Follow the instructions on the screen (the phone will offer to format the map and transfer some data to it).

After that, all new applications will be installed by default on SD-But you'll have to manually transfer old programs through Settings. → Annexes.

💡

Formatting the card as internal memory does not increase the total storage capacity for all applications, and some programs (such as WhatsApp or bank clients) will still only be installed in internal memory due to security constraints.

Which applications cannot be transferred to SD-map 4A?

Even with ADB or Adoptable Storage, some applications are not portable to the memory card, and here is a full list of categories:

It is also impossible to transfer:

• 🔒 Applications that use DRM-protection (e.g. Netflix, Disney)+).
• 📡 Programs that work in the background as services (Google Play Services, Mi Push).
• 🎮 Online multiplayer games (the risk of ban for modifying files).

If you try to circumvent these restrictions through root access or modified APKs, there is a high risk of:

• 🚫 In-game account losses (e.g. Clash Royale or Brawl Stars).
• 🛑 Blocking the banking application (re-installation required).
• 🔄 Unstable system operation (constant restarts).

Alternative solutions: how to free up memory without transferring applications

If porting apps is impossible or ineffective, try these methods:

• 🧹 Cache Clearing: Go to Settings → Warehouse → Especially a lot of garbage accumulate Facebook, Instagram and Google Chrome.
• 🗑️ Removal of unnecessary APK: Use Files by Google or SD Maid to search for remaining files after uninstallation.
• ☁️ Media transfer: Photos and videos take up the lion's share of memory. Move them to SD-gallery-card → Albums. → Select → Move over.
• 📥 Change the Load Location: In Chrome or Mi Browser, set up file saving on the SD default.
• 🔄 Use Lite Versions: Replace Facebook with Facebook Lite, Messenger with Messenger Lite, etc.
• 🛠️ Disabling Pre-installed Applications: Through Settings → You can disable unnecessary services (Mi Video, Mi Music) but not remove them completely.

To automate the process, we recommend the All-In-One Toolbox utility (available on Google Play).

• 📊 Analyze the use of memory by category.
• 🗑️ Delete duplicate files and empty folders.
• 🔄 Optimize the Autoloading of Applications.

⚠️ Note: Do not use cleaners like Clean Master or CCleaner, which often delete important files and slow down the system. MIUI It has built-in optimization tools that are sufficient for most tasks.

FAQ: Frequent questions about porting applications to SD in Redmi 4A