Why is a flash drive upgrade the best choice for Xiaomi TV 4S?
Xiaomi Mi TVs TV 4S (model L43M5-5ASR, L50M5-5ASR, L55M5-5ASR and others) often encounter problems with automatic updates: slow downloading files, connection breaks or server errors. USB-The flash drive solves these problems, allowing you to install firmware even when the Internet is unstable or Xiaomi servers are blocked in your region.
In addition, manual updates give you control over the software version. For example, if the HDMI ARC sound is lost after an automatic update or applications stop working, you can roll back to the stable version. The main thing is to properly prepare the USB drive and follow the instructions to avoid "brick" (breakdown) of the TV.
In this article - unique data on the firmware Xiaomi TV 4S through USB, including hidden nuances of firmware file selection, storage formatting and actions in case of type errors E1001 or Update Failed. Information is relevant to firmware. MIUI TV 2.0 and newer (2023).
What is the best way to download Xiaomi TV 4S?
The first step is to find the official firmware for your model. Xiaomi publishes files on the official website, but there are nuances:
- 🔍 Check the exact TV model in the Settings menu → On TV. → Like a model, L43M5-5ASR and L43M5-5ASRU — device!
- 📁 Download a file with the.zip extension (not.rar or.zip.7z). The name must contain a version, for example: mi_tv_4s_L43M5_5ASR_V2.0.123_stable.zip.
- ⚠️ Avoid “custom” firmware from third-party sites – they may contain viruses or incompatible drivers for MStar chipsets used in Xiaomi. TV 4S.
If the official website doesn’t have an up-to-date version, check the 4PDA or XDA Developers forums where users share their mirrors for download. Pay attention to the release date – firmware older than 2022 may not support new apps (such as Disney+ or Prime Video in 4K).
Where can I find the archived versions of the firmware?
| Xiaomi TV 4S model | The Last Stable Version (2023) | File size | Features |
|---|---|---|---|
| L43M5-5ASR | MIUI TV 2.0.145 | 1.2 GB | Fixed the Dolby Vision bug on Netflix |
| L50M5-5ASR | MIUI TV 2.0.142 | 1.3 GB | Added ALLM support for gaming consoles |
| L55M5-5ASRU | MIUI TV 2.0.139 | 1.1 GB | Optimized interface for remote with microphone |
Preparation USB-Flash drives: format, file structure and errors
Incorrectly prepared flash drive is the main reason for failures during the update. Xiaomi TV 4S has strict requirements:
- 💾 Use a 4 to 32 GB flash drive (large drives may not be recognized — USB 2.0 (black inside the connector).
- 📂 Format in FAT32 (not NTFS The name of the volume must be in Latin, without spaces (for example, the name of the volume should be in Latin, MI_TV_UPDATE).
- 📄 Unblock the firmware to the root of the flash drive: E:\ ├── update.zip └── (no other folders!)
A common mistake is to place the update.zip file inside the folder. The TV won't see the firmware! Also remove all the extra files (photos, documents) from the flash drive to avoid conflicts. If the flash drive has been used to firmware other devices (such as Android smartphones), format it again.
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If the TV can’t see the flash drive, try another one. USB-The port. TV 4S Usually only a port with a mark is in operation "USB 2.0" (most often sideways).
⚠️ Note: Do not use flash drives with an activity indicator (flashing LED). E1003 food-related conflict USB-port.
Step-by-step instructions: how to update the firmware from the flash drive
Now, to the process itself, make sure that the TV is connected to the network via a power cable (not USB!) and turn off all peripherals (sound bar, game console).
- Put the flash drive in. USB-TV port (preferably back, if you have a choice).
- Open the update menu: go to Settings → About TV → System Update → Update via USB.
- Confirm launch. The TV will automatically find the update.zip file and prompt you to install it. Press OK.
- Wait until it's done. It's going to take 5 to 15 minutes. It's okay to blink or go out. Don't press the buttons on the remote.
- Reboot. Once installed, the TV will restart 2-3 times. Don't take the flash drive out until it's fully turned on.
If the update notification appears successfully after the reboot, check the version in the About TV menu. If the version has not changed, repeat the process with another flash drive or firmware file.
The flash drive is formatted in FAT32|
The firmware file is called update.zip and lies at the root |
TV connected to 220B network (not via USB)|
All external devices (set-top boxes, sound panels) are disabled |
The current version of the software is recorded (in case of rollback)-->
Errors in the update and their solutions
Even with proper preparation, there can be failures, and let's look at the typical mistakes and how to fix them:
| Error code | Reason. | Decision |
|---|---|---|
| E1001 | The discrepancy between the firmware model and the TV | Download firmware for an exact model (check in Settings → About TV) |
| E1003 | Problems with USB-storage device (format, damages) | Format the flash drive into FAT32 through SD Formatter, use another one. USB-port |
| Update Failed | Interrupted update or memory deficit | Perform reset to factory settings (Settings → Reset) and try again |
If the TV has been getting stuck on the Mi logo after a failed update:
- Turn off the TV for 1 minute.
- Hold the Menu button on the remote and turn the TV on.
- In the recovery menu, select Wipe Data (reset), then repeat the firmware.
⚠️ Warning: If the TV doesn't turn on after the failure (black screen, no indication), don't try to flash it again without a diagnosis. This may indicate damage to the bootloader.
What to do after a successful update?
Installing a new firmware is only half the job, so that the TV is stable.
- ⚙️ Perform a reset settings (Settings) → Reset → Reset all settings. This will clear the cache and avoid conflicts between old data and new software.
- 🔄 Update the applications: go to MIUI TV App Store and click Update Everything. Especially important for Netflix, YouTube and Prime Video.
- 🎮 Reconfigure Game Mode if you use a TV for games. New firmware can reset settings ALLM and VRR.
Check the key functions:
- Sound via HDMI ARC (if the sound bar is connected).
- Google Assistant (if you have a microphone on the remote).
- Playing HDR10 and Dolby Vision in a YouTube test video.
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After upgrading, the TV can slow down for the first 10 to 15 minutes, which is normal, and it indexes files and optimizes performance.
Reverse to the previous version of the firmware
If the new firmware caused problems (for example, the sound in Optical Out disappeared or stopped working) IPTV-Players, you can bring back the old version:
- Download the desired firmware version (see the table above).
- Repeat the update process through the flash drive, but select the old firmware file.
- After the rollback, reset the settings (Settings → Reset).
Important: Xiaomi is blocking rollbacks on versions older than 2021 due to security changes. If you try to install MIUI TV 1.8 firmware on a TV with MIUI TV 2.0, you get an E1005 error, in which case only the official service will help.