How to increase memory on Xiaomi TV 4A: step-by-step

Xiaomi Mi TVs TV 4A (Especially the 2018-2020 models are often faced with the problem of lack of internal memory, even 8 GB, which are installed in the basic versions, quickly clogged with applications, cache and system updates. Unlike smartphones, you can’t just insert microSD – you need the right approach to expand storage or optimize it.

In this article, we will discuss all working ways to increase memory on Xiaomi. TV 4A, This includes connecting external drives, transferring applications, cleaning the system and even replacing the built-in module (for advanced users (FAT32, exFAT, NTFS), compatibility USB-Storage and hidden Android settings TV, Which Xiaomi doesn't advertise.

Important: Not all methods are equally effective. USB-The drive to port 3.0 (blue connector) gives an increase in read / write speed up to 40% compared to the previous one. USB 2.0, which is critical for running games or 4K-And the cache cleaning, which is a standard menu, often only removes surface data, leaving the main debris intact.

1. Connecting an external storage device: USB-flash-drive

The easiest way to expand memory is to use USB-flash-drive HDD/SSD. However, not every drive is suitable: Xiaomi TV 4A Has limitations on file system and volume.

The main requirements for the drive:

• 🔌 Interface: USB 2.0/3.0 (port 3.0 preferably).
• 💾 Format: FAT32 (before 32 GB), exFAT (up to) 128 TB NTFS (without restrictions. TV 4A Officially, it only supports FAT32, but exFAT/NTFS They work through third-party applications (for example, USB OTG Helper).
• 🔋 Power: Hard drives (HDD) They require additional food – use it. USB-hub with an external block or Y-cable.
• ⚡ Speed: For 4K-Video and games need a drive with read speed 30 MB/s (class) UHS-I/U3).

How to connect:

1. Format the flash drive into FAT32 (via PC or TV in Settings → Warehouse → Format).
2. Put the drive in USB-TV port (preferably blue for the TV port) USB 3.0).
3. Settings menu → Devices → Select “Use as internal memory” (if you want to install applications) or “As external” (for media files).

⚠️ Note: When you select the option "Use as internal memory", the drive will be encrypted and formatted, and once retrieved, the data on it will become unavailable on other devices!

2. Optimization of internal memory: cleaning cache and garbage

Before buying a new drive, you should free up existing memory. TV 4A cache and temporary files can take up to 3-5 GB, and they are deleted in an unobvious way.

Where to look for garbage:

• 🧹 Application cache: Settings → Annexes → Select an application → Warehouse → Clear the cache.
• 🗑️ Downloads: Folder /storage/emulated/0/Download (Access through a file manager, for example, FX File Explorer).
• 📁 Residual files: After deleting applications, folders remain in /data/data/ (You can only see through ADB).
• 🔄 System Updates: Older versions of the firmware in /cache/ (You can remove it through Recovery Mode).

For deep cleaning:

1. Install. SD Maid or CCleaner TV from Google Play (if available on your model).
2. Run scanning for "Orphan files" and "Dublicates".
3. To remove system debris, use the command through ADB: adb shell pm trim-caches 256 (where 256 is the size of the cache in MB that you need to leave).

3. Transfer of applications to an external drive

If you plug in a flash drive as internal memory, you can transfer some applications to it, but not all programs support this feature, especially system ones (for example, Google Play Services).

How to move applications:

1. Connect the formatted drive (see section 1).
2. Go to Settings. → Annexes → Select an application → Warehouse.
3. Click "Change" and select an external drive (if the option is active).

Limitations:

• ❌ Not carried: Netflix, Prime Video, YouTube (DRM-defence).
• ⚠️ After porting, some applications may run slower (depending on the speed of the flash drive).
• 🔄 When the drive is removed, the transferred applications will cease to run.

4.Use of OTG-hub SSD or HDD

If you need to significantly increase your memory (for example, for recordings from a TV tuner or a large media library), a regular flash drive will not be enough. USB-OTG externally powered hub and full connection SSD or HDD.

What you need:

• 🔌 OTG-port USB 3.0 and an external power supply (e.g. Anker) 4-Port USB 3.0 Hub).
• 💿 Outside SSD (Samsung recommended T5/T7 for speed or HDD (for example, WD My Passport).
• 🔋 Y-cable (if the hub is powerless) for connecting the second USB-port.

Setting:

1. Connect the hub to the TV and external power source.
2. Connect. SSD/HDD to the hub (formatted in exFAT).
3. B Settings → Select "Connect as external storage".
4. Use the application to install the application ADB: Adb shell sm set-force-adoptable true (allows you to mount an external disk as an internal disk).

⚠️ Note: Not all hubs are compatible with Xiaomi TV 4A. Avoid cheap models without power – they can cause TV reboots at high load.

5. Replacement of the built-in memory module (for advanced users)

If all of these methods fail, the radical solution is to replace the built-in eMMC with a larger one, a complex procedure that requires soldering equipment and chip experience.

What you need to know:

• 🔧 Memory model: In Xiaomi TV 4A eMMC 5.1 is used (e.g. Kingston) EMMC08G-M625 8GB). Suitable replacements: Samsung KLMBG4GEND-B031 (32 GB or Hynix H26M64103EMR (64GB).
• 🔥 Equipment: Sweater station with thermal air (for example, Quicko) T12), flux, solder and BGA-stencil.
• 💻 Firmware: After replacement, you will need to flash the TV through USB Burning Tool (Firmware File for Mi) TV 4A can be found 4pda.ru).

Step-by-step:

1. Disassemble the TV by removing the back cover (unscrew the screws and disconnect the plumes).
2. Find the eMMC chip on the motherboard (usually marked as KLM8G1 or similar).
3. Heat the charge to 150°C, remove the old chip with a stencil.
4. Install a new eMMC, sell contacts.
5. Write the TV through USB Burning Tool (select a firmware file for your model, for example, mi_tv_4a_32bit_user_20210315.zip).

⚠️ Warning: Replacing the eMMC is warranty-free and can cause the motherboard to break if soldered improperly.If you are unsure of your skills, contact the service center.

💡

Before soldering, take a picture of the location of the chips on the board - this will help to correctly install the new eMMC and avoid short circuit.

6. Alternative methods: cloud storage and network drives

If physical memory expansion is not possible, network solutions can be used:

• ☁️ Cloud services: Google Drive, Yandex Disk or Mega via CloudTV or Kodi apps.
• 🖥️ SMB/NAS: Connecting a network disk (e.g., Synology or WD My Cloud through ES Conductor or X-Plore.
• 📡 DLNA: Streaming media from a PC or laptop (for example, via Plex or VLC).

How to connect the network disk:

1. Install ES Explorer from Google Play.
2. Go to the Network → LAN Add a new server (specify) IP yours NAS PC).
3. Enter your login/password (if required) and connect.
4. Copy files to local storage or play directly.

Advantages of network storage:

• ✅ There is no limit to the size (depending on yours). NAS).
• ✅ Data is available on all devices.
• ✅ No risk of data loss when the TV breaks.

Disadvantages:

• ❌ Requires stable Wi-Fi (minimum 50 Mbps for the 4K).
• ❌ Delays in the reproduction of heavy files.

💡

Network storage (NAS) — Best option for large media libraries (movies, TV series), but not suitable for installing applications.

7. Android setup TV save memory

Even without memory expansion, you can optimize its use through hidden Android settings TV:

Savings:

• 🚫 Turn off auto-update: Settings → Annexes → Auto-update of applications → Shut down.
• 🗑️ Limit the cache: In ADB Do this: Adb shell setprop persist.sys.fw.use_trim_settings True (reduces background memory consumption).
• 🔄 Remove System Applications: Through ADB You can uninstall unnecessary services (for example, com.xiaomi.mitv.appstore – Xiaomi’s branded store): adb shell pm uninstall -k --user 0 com.xiaomi.mitv.appstore
• 📵 Turn off background activity: In Settings → The device → Developer mode → Limit background processes select "Maximum 2 process".

Hidden Android Settings TV:

1. Activate Developer Mode: Go to Settings → About TV and 7 times click on "Assembly Number".
2. Turn on the debugging. USB and Factory unlocking OEM (required ADB).
3. Disable animation to speed up the interface: adb shell settings put global window_animation_scale 0 adb shell settings put global transition_animation_scale 0 adb shell settings put global animator_duration_scale 0

FAQ: Frequent questions about memory enhancement on Xiaomi TV 4A