Combining the memory of the phone and SD-maps on Xiaomi Redmi 7A: full guidance with warnings

Xiaomi Redmi 7A owners often face a shortage of internal memory, especially if the device is used to store photos, videos or heavy applications. One solution to this problem is to combine internal memory with a microSD card, which allows you to expand the available space without buying a new phone. However, the procedure has its nuances: not all memory cards are supported, and improper actions can lead to data loss or system failures.

In this article, we will discuss how to combine memory on the Redmi 7A with the features of MIUI firmware, consider alternative ways to expand memory and warn about possible risks. It is important to understand that the Adoptable Storage feature is not officially supported by Xiaomi on this model, but there are workarounds - both regular and root-rights. We will focus on secure methods that do not violate the warranty and do not require deep technical knowledge.

Does Xiaomi support Redmi? 7A memory-combination SD-card?

Officially Xiaomi Redmi 7A does not support Adoptable Storage technology (Earthroid Storage), which allows you to combine internal memory and SD-This feature has been removed from firmware. MIUI starting with 8, redmi 7A (s MIUI 10/11/12) It's no exception, but there are a few alternatives:

• 🔄 Transfer of applications to SD-Map (partial solution, does not work with all applications).
• 📁 Using the card as a portable storage (files are manually moved to the portable storage area) SD).
• 🔧 Manual association through ADB (Requires connection to PC and command line).
• 🛠️ Getting root rights (risky, deprives of guarantees).

In practice, most users choose the first two options because they don't require technical skills; the third way (through ADB) is more complex, but it achieves an effect close to full-fledged integration; the fourth is an extreme measure, which we will not consider because of high risks.

⚠️ Note: If you see instructions on the Internet to “merge memory with one click” using third-party applications (for example, Link2SD or App2SD) — You know what's on Redmi. 7A They won't work without root rights. These programs require extended permissions that are not allowed to be used. MIUI block.

Requirements for SD-map for Xiaomi Redmi 7A

Before attempting to combine memory, make sure your microSD card meets the minimum requirements:

• 📏 Speed class: not lower than Class 10 (recommended) UHS-I or UHS-II steady-work).
• 💾 Volume: 16 GB to 256 GB (maximum supported volume for Redmi) 7A).
• 🔄 Format: FAT32 exFAT (NTFS unsupported!).
• 🛡️ Manufacturer: preferably SanDisk, Samsung, Kingston (cheap no-name cards often cause errors).

If the card has already been used on another device, it must be formatted directly in the phone.

1. Insert the card into the Redmi 7A slot.
2. Go to Settings. → Warehouse → SD-map.
3. Choose Format as internal memory (if the option is active) or Clear.

⚠️ Note: Formatting the card as internal memory will delete all the data on the card completely. If there are important files on the card, copy them to the computer or cloud. Also note that after formatting the card will not be retrieved without data loss – it will become “tied” to the phone.

Method 1: Transfer applications to SD-map (without association)

If full memory integration is not available, you can partially solve the problem of space shortage by transferring supported applications to the Internet. SD-This method does not require root rights and runs on standard firmware. MIUI.

How to move applications:

1. Open Settings → Applications → Application Management.
2. Choose the app you want to migrate (not everyone supports this feature).
3. Press Warehouse. → Change. → SD-map.
4. Confirm the transfer and wait for the process to be completed.

Limitations of the method:

• ❌ Not all apps support portability (especially system and cache games).
• ❌ Some of the data (such as updates) will still be stored in internal memory.
• ❌ When extracted SD-Maps of the transferred applications will cease to work.

Make sure that SD-The card is formatted as a portable storage

Check the free space on the map (needs at least 1-2 GB)

Close all working applications

Backup of important data-->

For convenience, you can use third-party managers like AppMgr III (available on Google Play), which shows which apps you can migrate and sorts them by size, but even with it, you can't migrate programs like WhatsApp, Facebook or Google Maps, they block this feature.

💡

If the app is slower after the transfer, try to return it to internal memory. Some programs are optimized only for fast built-in flash memory.

Method 2: Combining memory via ADB (advanced method)

This method allows you to “deceive” the system and make it perceive SD-It requires connecting your phone to your computer and using the Android Debug Bridge tool (ADB). The method works MIUI 10-12, but can cause system instability if performed incorrectly.

Step-by-step:

1. Turn on Developer Mode: Go to Settings → About Phone. Click 7 times on MIUI until the notification "You're a developer" appears.

USB debugging

Settings → Additional → For Developers

Connect the phone to the PC and confirm the debugging permission.

ADB Tools

cmd

adb shell


sm list-disks

Remember the disk identifier (e.g., disk:179.64).

disk:X,Y

sm partition disk:179,64 private

Reboot the phone.

After the reboot. SD-The card will be displayed as part of the internal memory, but keep in mind that:

• 🔋 The card cannot be removed without resetting the phone to the factory settings.
• ⚠️ Some applications (such as banking) may not work.
• 🐢 System speed may decrease if the card is slow.

⚠️ Warning: If the phone stops loading or gives a "No Command" error after you run the command, you will have to reset via Recovery Mode. + Volume up and select Wipe Data. All data will be deleted!

Method 3: Use SD-maps as portable storage

If the previous methods seem complicated or risky, you can use them. SD-This does not combine memory, but allows you to manually move files (photos, videos, music) and some application data.

How to set up:

1. Put it in. SD-phone-card.
2. In the notification, select Use as Portable Storage (or go to Settings). → Warehouse → SD-map → Set up → Portable storage).
3. Prepare the map (if required).

Advantages of this method:

• ✅ The card can be retrieved and used on other devices.
• ✅ No risk of data loss or system failure.
• ✅ All types of files are supported.

You can use applications like Files by Google or Solid Explorer to automate file transfer, and you can set up rules to automatically move photos and videos to the Internet. SD-card when connecting to Wi-Fi or charging.

💡

Portable storage is the safest way to expand memory, but it requires manual file management. This method is not suitable for automatic transfer of application data.

Frequent mistakes and their solutions

When working with memory on Xiaomi Redmi 7A users often face problems. Let’s consider the most common ways to eliminate them:

If the phone starts to overheat or discharge quickly after the memory is combined via ADB, it is most likely the fault of a cheap microSD card.

1. Connect the phone to your PC and uninstall the team: sm partition disk:179.64 public (replace the identifier with yours).
2. Buy a memory card from a trusted manufacturer (such as SanDisk Ultra).
3. Repeat the process of combining with the new card.

Alternative ways to expand memory

If memory consolidation is not suitable or is causing problems, consider alternative options:

• ☁️ Cloud storage: Google Drive, Mi Cloud, Yandex Disk allow you to automatically back up photos and videos. 7A You can set up autoload media files when connecting to Wi-Fi.
• 🔌 USB-OTG: Connect a flash drive or external drive through an adapter.Redmi 7A supportive OTG, The reading/writing speed is lower than that of SD-map.
• 🧹 Cache Clearing: Clean the app cache regularly in Settings → Warehouse → Clean it up. It can free up up to 1 to 3 GB of space.
• 📦 Lite versions of apps: Install lighter versions of social networks (e.g. Facebook Lite, Messenger Lite) that take up less space.

To automate memory cleaning, you can use the built-in Cleanup function in MIUI:

1. Go to Security. → Cleaning.
2. Click Deep Clean and select unnecessary files (cache, temporary data).
3. Activate the Auto Clean option to vacate space regularly.

If you shoot video frequently, pay attention to the camera settings: reducing the resolution from 1080p to 720p reduces the file size by 2-3 times without significant quality loss on the Redmi 7A screen.

FAQ: Answers to popular questions