How to transfer applications from internal memory to SD-map to Xiaomi Redmi 7

Owners of budget smartphones like the Xiaomi Redmi 7 often face a critical shortage of free space. Built-in storage of 32 or 64 GB today is barely enough to install the operating system and the basic set of programs. When the phone starts to issue notifications about memory overflows, the device runs slowly, and new applications simply stop installing.

There are several ways to address this, and one of the most effective is to use an external drive, which allows you to transfer data to a microSD card, which allows you to offload the system partition and speed up the gadget, but this process has its nuances, especially in the MIUI shell, where standard Android methods can be hidden or changed by the manufacturer.

In this article, we will take a look at all the memory expansion methods available, how to properly prepare the map, which applications can be moved and which will remain in internal memory, and whether to use Adaptive Storage mode. Follow the instructions Step-by-step to safely optimize your Redmi 7.

Preparation of memory card and smartphone for work

Before trying to transfer any data, make sure your memory card is working and formatted in the correct file system. Xiaomi smartphones work best with cards formatted in FAT32 or exFAT. If the card has previously been used on another device or computer, it is recommended to conduct full formatting directly through the phone menu.

⚠️ Note: Formatting a memory card will completely destroy all data stored on it. Be sure to save important photos and documents to your computer or cloud storage before starting the procedure.

To format, insert the card into the smartphone slot. Once the system detects the drive, go to the settings. You need to find the partition responsible for the storage. The path may vary slightly depending on the version of MIUI, but it usually looks like this:

Settings → About the phone → Storage → SD card

Alternatively, through the Advanced Settings menu, select Format from the menu that opens, and the system will alert you to the loss of data again, confirm the action and wait until the process is complete, and then the map will be ready to write new files and install applications.

It is important to understand that the speed of applications depends on the speed class of your card. For comfortable use, it is recommended to use Class 10 or UHS-I cards. Slow cards can lead to getting stuck programs that have been transferred to an external medium.

Standard application transfer through Android settings

The Android operating system provides a built-in mechanism for moving some of these applications to an external medium. However, in the MIUI shell, this feature is often limited. Not all programs can be migrated in the standard way, since application developers can block this ability.

To check for portability, open your smartphone settings and go to the Apps section, which shows you the full list of installed software, and find the desired application, such as a game or social network, and click on it.

In the open menu of information about the application, look for the button "Move to the SD-If the button is active (not grey), you can click on it and start the transfer process. If the button is missing or inactive, then the developer has forbidden the movement of the application without using special rights.

• 📱 Open Settings and select the Application Item.
• 🔍 Find the program you want to move in the list.
• 💾 Press the button Move to the Move to SD-map, if available.

And it's worth noting that even after you transfer some of the files to the application, they're still in the internal memory, and these are the system files and cache that you need to run quickly, and you can't completely free up the internal storage in this way, but it's quite possible to win a few hundred megabytes.

Adoptable Storage (Advanced Memory)

The most radical and effective way is to use Adoptable Storage, which allows the system to consider the memory card as part of the internal storage, and then the applications will be installed on the computer. SD-Default card, as if it is the built-in memory of the phone.

Unfortunately, in modern versions of the MIUI shell, Xiaomi often hides or completely removes this feature from the user interface. On Redmi 7 with updated versions of Android, there may not be a standard switch.

Activation requires a computer connection and the installation of ADB drivers. This is a more complex method that requires caution. If you decide to do this, remember that the memory card will be formatted and encrypted. After that, it will not be read on other devices without re-formatting.

⚠️ Note: Using Adoptable Storage on low-speed cards can significantly slow down the entire smartphone. Use only high-quality memory cards with high write speeds.

If you find a hidden code to log into an engineering menu, or if you use specialized utilities to activate this feature, the process is as follows: the system will suggest you choose the mode of using the card: Portable Storage or Internal Storage.

• 💻 Connect your phone to a PC with installed ADB.
• ⌨️ Enter a command to format the card as internal memory.
• 🔄 Wait for data reset and migration.

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Adoptable Storage Mode Turns SD-card in the system section, but requires a high speed card and can be hidden by the manufacturer in the system section MIUI.

Multimedia transfer and work with file manager

The safest and easiest way to free up space on the Xiaomi Redmi 7 is to transfer user files: photos, videos, music and documents. It doesn't require superuser rights or complex settings. The built-in MIUI file manager does this perfectly.

Open the Explorer app or Files app. Go to Internal Drive. This is where the app data folders are located. For example, photos from WhatsApp are usually in the Android/media/com.whatsapp folder or just WhatsApp at the root. Heavy Telegram videos can take up gigabytes in the Telegram/Telegram Video folder.

Select the files you want or entire folders, click Copy or Move. Then go to the section «SD-map" and select the target folder or create a new one. Once the operation is complete, the originals in the internal memory can be deleted.

It is also recommended to go to the settings of the messenger apps themselves, Telegram, Viber and WhatsApp can specify the way to save downloaded files, if you change the path to the memory card, all new media files will automatically be saved there, without taking up precious internal space.

Cleaning the cache and removing system debris

Even after the transfer of files, memory can be refilled due to the accumulation of temporary files. Application cache is data that speeds up the program, but over time its volume can become unnecessarily large. Regular cleaning of the cache helps to keep the system in good shape.

MIUI has a built-in Security app, and you can run it and select Cleanup, and it will analyze the storage and suggest that you delete temporary files, remnants of deleted applications and other debris, and it's a secure operation that doesn't affect your personal data.

Deeper cleaning is available through application-specific settings. If an application (such as a browser or social network) takes up suspiciously much space, go to Settings → Apps → [Application Name] → Memory. There you will see a “Clear Cache” button. Don’t confuse it with a “Clear All” or “Reset” button that will delete usernames and passwords.

• 🧹 Use the built-in Security app for quick cleaning.
• 📱 Check the memory of heavy applications individually in the settings.
• 🗑️ Remove the.thumbnails folder through the conductor to free up space from thumbnails.

You should also pay attention to the folder. MIUI/debug_log. In some cases, the system can accumulate error reports that take hundreds of megabytes. If you're not a developer and you're not debugging the system, you can delete the contents of this folder.

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Turn on Auto Clean in the Security settings so that your phone deletes temporary files when your memory is over 80% full.

Frequent problems and their solution when working with SD-card

When using an external drive on Xiaomi Redmi 7, users can encounter various errors «SD-The card is corrupted" or "Formatting required" even if the card is fine, often due to incorrect extraction or file system failures.

If the phone stops seeing the card, try restarting the device. Do not remove the card when the phone is turned on unless you have a safe extraction procedure in the settings. Go to Settings → Storage, click on the card and select Extract.

In the case of persistent reading errors, it is possible that the contacts on the card itself or in the phone slot have become oxidized. Carefully wipe the contacts of the card with a soft eraser or dry cloth. Also make sure that the card is inserted before clicking and fixed correctly.

⚠️ Warning: If the phone is constantly losing the card or requires formatting, the drive may have failed.

Another common problem is that applications are slow after portability, which indicates a slow card write rate, and the only solution is to replace the card with a faster model, preferably from well-known brands like SanDisk or Samsung.

Questions and Answers (FAQ)