How to install applications on a memory card in Xiaomi Redmi 8T: a complete guide to 2026

Owners of Xiaomi Redmi 8T often face a lack of internal memory, especially if the device is used for games, photos or videos. One solution is to install applications on a microSD card. However, in MIUI, this process has a nuance: not all applications support portability, and some functions may not work correctly. In this article, we will analyze all the available methods, from standard settings to workarounds for power users.

It is important to understand that Redmi 8T It works on Android. 9/10 (depending on the firmware version) with a shell MIUI 11/12, where the memory management policy is stricter than on pure Android, we will analyze three key methods: transfer through settings, formatting the card as an internal drive and using third-party tools. SD-map and why.

1.Preparation: Which Memory Card is Right for the Redmi 8T

Before you try to install apps on the map, make sure that it meets the requirements of the device. Redmi 8T supports microSD up to 512 GB (officially up to 256 GB, but tests show compatibility with large volumes).

  • πŸ”Ή Speed class: not lower UHS-I (U1) Class 10, for games and heavy applications, better. U3.
  • πŸ”Ή Format: FAT32 (Up to 32GB) or exFAT (over 32GB) formatting as internal memory will require ext4.
  • πŸ”Ή Brand: SanDisk Ultra, Samsung are recommended EVO Kingston Canvas – They are less likely to cause errors.

⚠️ Attention: Cheap cards without a brand can lead to freezes or data loss. H2testw (Windows or FakeFlashTest (Android).

πŸ“Š How much memory you use in Redmi? 8T?
Up to 32GB.
64–128 GB
256–512 GB
I don't use it.
Type of cardMax. Volume.Recording speedSuitable for
microSDHC32GB10–30 MB/sPhotos, music, lightweight apps
microSDXC64–512 GB30–90 MB/sGames, 4K video, heavy apps
microSD Expressup to 1 TB100+ MB/sProfessional use (not officially supported)

If you plan to use the card as an internal drive, you'll have to format it, which will delete all the data. Backup is mandatory! Also, once formatted, the card won't be retrieved without losing data, it'll be "tied" to the phone.

2. Method 1: Transfer applications through MIUI settings

The easiest method is to use the built-in MIUI feature.It is suitable for most user applications (e.g. Facebook, Instagram, VK), but does not work for system services.

Instructions:

  1. Open Settings β†’ Applications β†’ Application Management.
  2. Select the app you want to transfer (such as Telegram).
  3. Press Warehouse. β†’ Change (or Move to) SD-map).
  4. Confirm action. The system will copy some of the data to the map.

Make sure the card is inserted and recognized | Check the free space on SD (minimum 1 GB) | Close the application before transfer |Reboot the phone after transfer-->

⚠️ Note: Not all apps support portability, such as WhatsApp and Google Play Services will remain in internal memory, and after the transfer, the app widgets may stop working.

If the button is moved to SD-The card is inactive, which means that:

  • 🚫 The application does not support transfer (most often system or high-rights).
  • 🚫 The card is formatted as a portable storage, not as an internal memory.
  • 🚫 There is not enough space on the map (at least 1.5 is required).Γ— size).

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Before transferring, clear the app cache to Settings β†’ Applications β†’ Storage β†’ Clear the cache. This will reduce the amount of data transferred and speed up the process.

Method 2: Formatting the card as an internal memory

This method allows us to use SD-The card is part of the main storage facility, but has critical limitations:

  • πŸ”§ The card will be encrypted and linked to the phone – it will not be read on another device.
  • πŸ”§ After extracting the map, the application will stop working on it.
  • πŸ”§ Application speed may decrease (depending on the card class).

How to set up:

  1. Put the card in your phone and wait for it to be recognized.
  2. Go to Settings. β†’ Warehouse.
  3. Click on the title. SD-map β†’ Three dots (menu) β†’ Storage settings.
  4. Select Internal Memory β†’ Clean and Format.
  5. After formatting, click Transfer Data (optional).

⚠️ Warning: If you select the option to Transfer data, the system will copy some of the apps and media files to the map, which can take 10 to 30 minutes and drain the battery by 20 to 40 percent!

What if the phone doesn’t see the card after formatting?
If the card doesn't show up in Settings β†’ Storage after formatting, try: 1. Reboot the phone. 2. Remove and paste the card again. 3. Check the card on another device (if it's not readable, it may be corrupted). 4. Reset the phone's settings to factory (extremely). If the problem persists, the card may be incompatible with the Redmi 8T or damaged.

Method 3: Using ADB for Forced Transfer

For experienced users, there is a way to get around the restrictions MIUI Using Android Debug Bridge (ADB). This will allow you to transfer even those applications for which the button Move to SD-card blocked.

Preconditions:

  • πŸ–₯️ Computer with drivers installed ADB and Fastboot.
  • πŸ”Œ USB-cable (preferably original).
  • πŸ“± Included debugging by USB (Settings β†’ The phone. β†’ Version. MIUI β†’ 7 times press to unlock Developer Settings, then enable Debugging by USB).

Instructions:

  1. Connect the phone to the PC and confirm the debugging permission.
  2. Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with ADB.
  3. Enter the command to check the connection: adb devices must display the serial number of the device.
  4. Find out the batch name of the application (for example, for Telegram it is org.telegram.messenger), you can do this through the App Inspector (app from the Play Market) or by command: adb shell pm list packages -f
  5. Move the app to SD-map: adb shell pm set-install-location 2 Then adb shell pm move-package org.telegram.messenger

⚠️ Note: Not all applications will work properly after a forced port, for example, Google Maps or Banking applications may give out errors due to security restrictions. MIUI settings may reset.

πŸ’‘

ADB-This method is only suitable for applications that initially support installation on the SD-The card has a blocked button in MIUI. System applications will not be transferred.

5. which applications cannot be transferred to SD-map

Even if it is technically possible to transfer some applications, it is not recommended to move them to the memory card.

  • πŸ”’ Security: Banking applications (Sberbank Online, Tinkoff) can block access.
  • ⚑ Productivity: games (PUBG Mobile, Genshin Impact will slow down due to low card read speed.
  • πŸ”„ Auto Updates: Google Play Services and other system services may stop updating.
  • πŸ“± Widgets and notifications: applications with a widget (Weather, Calendar) may lose functionality.
Type of applicationCan I move it?Risks.
Social media (VK, Instagram)βœ… Yes.Slow download of media files
Messengers (WhatsApp, Telegram)⚠️ Partially.Errors in sending files
Banking applications❌ No.Account lockdown
Games (Call of Duty Mobile)❌ No.Lags, departures, loss of progress
System (Google Play, MIUI Launcher)❌ No.Unstable phone operation

If you do transfer an "unbearable" application and run into problems, return it to internal memory or reinstall it.

  1. Go to Settings β†’ Applications.
  2. Select the problem application β†’ Storage β†’ Transfer to internal memory.

6.Alternative ways to free up memory

If the applications are transferred SD-The card didn’t solve the memory problem, consider other methods:

  • 🧹 Cache cleaning: in Settings β†’ Warehouse β†’ You can delete up to 1-3 GB of unnecessary files.
  • ☁️ Cloud Storage: Move Photos and Videos to Google Photos or Mi Cloud (gives 5GB for free).
  • πŸ—‘οΈ Removing duplicates: use Files by Google or SD Maid to find duplicate files.
  • πŸ”„ Factory reset: extreme method, but returns up to 50% of free space (don’t forget to make a backup!).

To clean up automatically, turn on Storage Cleanup in Settings β†’ Storage β†’ Settings β†’ Auto Cleanup. The system will delete unnecessary files (such as installer APKs) once a week.

πŸ’‘

If you install/delete applications frequently, turn on the option to Cache Delete when you delete the application in Settings β†’ Storage β†’ Settings. This will prevent junk files from accumulating.

7. Frequent errors and their solution

When working with SD-map 8T And the problem is that users are facing typical problems:

Mistake.Reason.Decision
Map not determinedBad contact, card damageRestart your phone, check the card on another device
"Not enough space" during transferThe card is formatted in FAT32 (limited to 4 GB per file)Reformat to exFAT or NTFS (via PC)
Apps fly out after transferLow speed reading of the mapUse a U3 class card or move the app back
You can't move the app.Developer Limitation or MIUITry the ADB method or refuse to carry

If the card is no longer defined as internal memory after formatting, and the data on it is critical, try connecting it to your PC via a card reader. In most cases, files will not be available due to encryption, but sometimes the DiskInternals Linux Reader utility (for Windows) helps.

Can I use it? SD-The map as an internal memory of Redmi 8T formatless?
No, MIUI requires formatting the map to ext4 to be used as internal storage, without which the system cannot guarantee stable application performance.
Why After the Application Is Transferred to SD-card it's slowing down?
This is due to the slow read/write speed of the card, which requires a U3 class (write speeds from 30MB/s) to run properly, and cheap Class 10 cards often can’t handle the load.
How to return the app back to internal memory?
Go to Settings β†’ Applications β†’ [app name] β†’ Storage β†’ Move to internal memory. If the button is inactive, uninstall and reinstall the application.
Can I transfer WhatsApp to WhatsApp? SD-map?
WhatsApp does not officially support the transfer of SD-card due to security policy (chat encryption), however, media files (photos, videos) can be saved to the map in the application settings: Chats β†’ Backup β†’ Save it on. SD-map.
What happens if you take it out? SD-A card formatted as an internal memory?
Applications installed on the map will stop working, and the system will give an error "Application not installed", after re-inserting the card functionality will recover, but some data (for example, progress in games) may be lost.