MiRUM firmware on Xiaomi: everything you need to know about updating TVs

If you own a Xiaomi TV with MiRUM, you'll have to update your firmware sooner or later. But what is it? Why does the manufacturer release new versions regularly, and how does it differ from standard Android? TV? In this article, we will understand how the firmware MiRUM is arranged, why it should be updated, and what pitfalls can the user expect if the installation is incorrect.

Many people mistakenly believe that firmware is just a “software update” similar to what happens on smartphones. TV 4/5 Pro, Redmi Smart TV And there's some nuances to the process, and it's not just about adding new features, but also about deep optimization. MIUI for TV — It's a shell that controls everything from video processing to remote interaction, and update errors can lead to a complete loss of functionality, up to "bricking" (when the TV stops turning on).

We're not going to convince you that updates are necessary -- instead, we're going to show you how they affect real TV usage, and what to do if something goes wrong, from automatic updates over the Internet to manual firmware through the Internet. USB — Let’s look at all the ways, their pros and cons.

What is MiRUM and how is it different from Android? TV

MiRUM operating system is a proprietary development of Xiaomi, based on Android TV, But with a deep reworking of the interface and functionality. TV Google’s focus is on versatility and integration with YouTube or Netflix, while MiRUM is optimized for the Xiaomi ecosystem:

• 🔄 Simplified interface with a focus on content (for example, the home page shows recommendations from Mi Video, Prime Video and other services).
• 🎮 Game mode with reduced input delay (important for gamers connecting consoles).
• 📱 Deep integration with Mi Home – control smart devices directly from the remote.
• 🔊 Optimized sound with Dolby Audio support and DTS-HD (model-wise).

But MiRUM is not without its drawbacks, such as some users complaining about slowing down after a long time or not supporting a number of apps from Google Play, and here comes firmware updates that:

• 🛠️ Correct critical errors (e.g., problems with the HDMI-CEC or departures on reproduction 4K).
• 🆕 Adding new features (as support) AV1 for streaming or the "Cinema" mode for OLED-model).
• 🔒 Cover security vulnerabilities (especially important for camera or microphone TVs).

It's important to understand that firmware isn't just about "updating apps," it's about overwriting system files, so it takes care.

Why to update the firmware MiRUM: real benefits

Many users are skeptical of the updates: "If the TV works, why change anything?", but there are situations when the new firmware solves specific problems:

In addition, newer versions of MiRUM often bring hidden improvements that the manufacturer doesn't mention in the changelog.

• 🎨 Smooth interface animation (especially noticeable on budget models with a weak processor).
• 🔋 Optimizing power consumption in standby mode (relevant for TVs with Always On Display).
• 🖥️ Support for new permits (e.g, 1440p gamer).

But there's a downside: sometimes updates bring new bugs, like after MiRUM 2.2.3, some Mi users have been able to get more bugs. TV P1 We have encountered a problem of spontaneous switching of signal sources, in which cases it helps to roll back to the previous version (if it is saved) or wait for a patch.

💡

Before updating, check for feedback on the new firmware on forums (for example, 4PDA If the majority of complaints are, it's best to wait.

Types of firmware for Xiaomi TV: formal vs. custom

All firmware for Xiaomi TVs are divided into two large groups: official (from the manufacturer) and custom (developed by enthusiasts).

Official firmware

These are updates released by Xiaomi through the TV Update Center or manually through the support site.

• ✅ Stability: tested on all supported models.
• ✅ Preserving warranty (if updated through standard methods).
• ✅ Support for all functions including DRM streaming).

Official firmware is:

• 📥 OTA (Over-the-Air – automatically loaded by air.
• 💾 Full ROM — full system image for manual installation (needed in case of failures).
• 🔄 Incremental – Delta updates that weigh less (update only modified files).

Custom firmware

These are modified versions of MiRUM or even ported Android builds. TV from other manufacturers (e.g. LineageOS) and are used for:

• 🚀 Overclocking productivity (disabling unnecessary services).
• 🎛️ Features add (e.g., support for Kodi with root rights).
• 🔓 Bypassing regional restrictions (Google Play installation for uncertified models).

However, custom firmware has critical shortcomings:

⚠️ Warning: Installing unofficial software will void the warranty and may result in loss of support DRM (No Netflix in the world HD, Some applications are not working; there is also a high risk of bricking when you install an error.

If you still decide to experiment, choose firmware from the forums. XDA Developers or 4PDA, But remember, it's very difficult to get back the official firmware after custom.

How to check the current firmware version on Xiaomi TV

Before you upgrade, you need to know which version of MiRUM is installed on your TV, which will help you understand whether your system is relevant and which firmware to download for manual updates.

This can be done in two ways:

Method 1: Through the settings menu

1. Press the Settings button (⚙️) remote.
2. Go to Settings → About TV → The version of the software.
3. Remember or take a picture of a line of the form MiRUM 2.1.5.stable (where 2.1.5 is the version and stable is the build type).

Method 2: Service menu (for experienced)

If the TV is glitzy and does not open the main settings, you can use the engineering menu:

Press sequentially on the remote:


Menu → Up → Up → Down → Down → Left → Left → Right → Up → Up → Up → Up → Up → Up → Up →




(In some models, the combination may be different)

In the menu, look for the Software Version section.

Also note:

• 📅 Assembling date (e.g. 20231015 – October 15, 2023) If it is older than a year, your firmware is out of date.
• 🔢 Model number (e.g, L55M6-6ARG). It is needed to find the right firmware on the Xiaomi website.

Current version of MiRUM (e.g. 2.1.5)

Model TV (e.g. Mi TV) TV Q1 55")

Type of firmware (stable/beta)

Date of last update-->

Step-by-step: how to update the firmware MiRUM

There are three main ways to update firmware on Xiaomi TVs, and consider each of them, their pros and cons, and possible errors.

Method 1: Automatic update via the Internet (recommended)

The easiest and safest method is if:

• 🌐 You have a stable Wi-Fi (or Ethernet) connection).
• 🔌 The TV will not turn off during the process (risk with a weak power supply).
• 📶 Internet speed is not lower than 10 Mbps (firmware weighs 1-2 GB).

Instructions:

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, click Download and Install.
4. Wait until the end (the TV will restart 1-2 times).

⚠️ Warning: If the TV hangs on the Mi logo for more than 10 minutes during download or installation, don't pull the power cord! This can damage system files. Wait 15-20 minutes, and if nothing changes, start restoring through Recovery.

Method 2: Manual update via USB

This method is needed if:

• 📶 There is no stable Internet.
• 🔄 Auto Update does not find a new version (occasionally under regional restrictions).
• 🛠️ We need to revert to the previous firmware.

Instructions:

1. Download the firmware for your model from the official Xiaomi website (Support section) → TV → Your model. → Firmware).
2. Unpack the archive and copy the update.zip file to a flash drive (formatted in FAT32).
3. Put the flash drive in. USB-television-port.
4. Go to Settings → About TV → System Update → Update via USB.
5. Select the update.zip file and confirm the installation.

Important nuances:

• 🔌 Use the back. USB-port (usually more stable than the front port).
• 📁 File names update.zip change!
• 🕒 The process can take up to 30 minutes – don’t interrupt it.

Method 3: Update via Recovery (for experienced)

This is a method used when the TV is not turning on or is stuck in a loading cycle.

Instructions:

1. Download the full firmware (full) ROM) for your model.
2. Rename the file to update.zip And copy it onto a flash drive (FAT32).
3. Turn off the TV, put the flash drive in.
4. Press on the Menu remote. + Volume Down and turn on the TV (hold on 10 seconds until the Recovery menu appears).
5. Select Apply update from USB and specify the file.

⚠️ Attention: Recovery doesn't have a remote! Use Volume buttons Up/Down for navigation OK (If the TV doesn't respond, check the batteries in the remote or use the keys on the body.

1. turn off the power for 5 minutes (remove the plug from the socket).

2. Repeat installation via Recovery.

3. contact the service center (if the guarantee is valid).-->

Frequent update errors and how to avoid them

Even when you follow the instructions, users face problems, and let's look at the most common mistakes and how to fix them.

If none of these methods worked and the TV still doesn't work, there may be a hardware problem (e.g., a broken flash memory) in which case you should contact the service center.

To minimize the risks, follow these tips:

• 🔋 Use UPS (Uninterruptible Power Supply) during the upgrade to avoid power outages.
• 📥 Download firmware only from official sources (Xiaomi site or trusted forums).
• 📝 Save the update log: If something goes wrong, it will help specialists diagnose the problem.

Firmware rollback: how to return the previous version of MiRUM

Sometimes the new firmware is worse than the old one, with lags, features missing or errors, and users want to roll back on the previous version, but it's not as easy as on smartphones.

Here's what you need to know:

• 🔙 Xiaomi does not officially support downgrade (downgrading the firmware version.
• 🔓 Recoil requires unlocking the bootloader, which voids the warranty.
• 🛡️ On some models (e.g., Mi) TV Q2) No recoil due to Anti-Rollback protection.

If you do decide to take a risk, follow this instruction:

1. Find the archive with the desired firmware version (for example, on the 4PDA).
2. Unpack it and find the file. update.zip.
3. Copy it onto a flash drive and try installing it via Recovery (as described above).
4. If an Error 1 error appears, it means that the rollback is blocked on your model.

⚠️ Warning: After a rollback, it may stop working DRM (no Netflix/Disney+ into HD), There will also be problems with updates. OTA. In addition, some TVs are activated by eFuse protection, which permanently blocks the ability to install new firmware.

Alternatively, wait for a new update, in which the manufacturer will fix the bugs. If the problem is critical (for example, the TV does not turn on), contact the service center to request to reflash the device in the official method.

FAQ: Answers to Frequent Questions about MiRUM