Xiaomi Mi 4X What year of release? We understand models and versions.

If you are looking for information about Xiaomi Mi 4X And you're not alone in trying to figure out its year of release, and this is one of the models that is often confusing to users. 4X» You can hide things from budget smartphones to smartwatches to even TVs, but most commonly, that name means Mi TVs. TV 4X, Which Xiaomi released from 2018 to 2021.

In this article, we will understand how to accurately determine the year of release of your Mi. 4X, And you'll also learn why it's important, like choosing the right firmware or estimating market value, and let's not drag on: let's start with the most important thing.

Why it is important to know the year of Xiaomi Mi 4X?

The year of release of a device is not just a number for statistics, it depends on it:

• 🔧 Update support: Xiaomi usually provides firmware for TVs for 3-4 years from release. 4X 2018, the chances of new features are minimal.
• 💰 Market price: The difference in cost between 2019 and 2020 models can reach 30-40% even with the same characteristics.
• 🔌 Accessory Compatibility: For example, remotes or mounts for 2021 models may not fit older versions.
• 🛠️ Repairability: New models are easier to find, and old ones are sometimes removed from production.

Also, knowing the year of release will help avoid fraud when buying used equipment, and often sellers pass old models for new ones, masking this as a “restyling” or “updated version”.

How to determine the year of release of Xiaomi Mi 4X: 4 Reliable Ways to Use

There are several proven methods to find out what year your Mi is. 4X. We've arranged them from the simplest to the most complex.

1. View on the box or in the documents

The most obvious but often ignored way: On the original packaging of the Xiaomi Mi TV 4X Serial number and production date (look for «MFD» Or "Date of Manufacture." If there's no box, check it out:

• 📄 Warranty card: there must be a date of sale.
• 📋 Check or invoice: even if they are not original documents, they may contain a model and year.

⚠️ Warning: Be careful about buying undocumented devices, which could be a sign of "gray" imports or stolen equipment.

2. Check the serial number in the settings

If you do not have any documents, check the TV menu:

1. Open the Settings. → On TV.
2. Find the Model and Serial Number fields.
3. Write down the combination of symbols – you will need it for the next step.

Xiaomi serial number usually has a format XXXXXXXXXYYWW, where:

• YY is the last two digits of the year (e.g. 19 = 2019).
• WW is the week of production (01 to 52).

Example: If the serial ends in 2035, your TV will be released in Week 35 of 2020 (August 2020).

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If the serial number is erased or not readable, try to find it on the sticker on the back of the TV – it is usually located next to the ports. HDMI.

3. Use the "Mi Home" app

If you don't. 4X Connected to Xiaomi ecosystem, check the information through the app:

1. Open Mi Home on your smartphone.
2. Find your TV in the list of devices.
3. Slip it and select Device Information.

The exact model will be displayed here (for example, L43M5-5AXRU for Mi TV 4X 43" 2020 This does not always coincide with the date of production, but gives an approximate reference.

4. Compare with official specifications

Xiaomi regularly updates the Mi lineup TV 4X, And the models over the years have some key differences:

If your model does not match any of the tables, check it on the official Xiaomi website (section "Authentication Check").

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A serial number is the most reliable way to identify a year, and if it's worn off, use a combination of data from the TV's menu and visual differences (rear panel design, ports).

The differences between Xiaomi Mi 4X Year by year: what to pay attention to

Even if you've got a year, it's helpful to know exactly what the models are, which can help you choose between used options or when diagnosing malfunctions.

2018: The first versions with bugs

Mi TVs TV 4X 2018 was a pilot for the European market, and its main features are:

• ✅ Cheap (at the start of sales, the price was 20% lower than competitors).
• ❌ The weak Amlogic processor T962 — slows down when launching heavy applications.
• ⚠️ Frequent Wi-Fi problems (a 5GHz connection falls off).

These models no longer receive security updates from 2022, so it is not recommended to connect them to the Internet without additional protection (for example, through the use of security and security). VPN).

2019: Improved Iron and PatchWall

In 2019, Xiaomi updated the lineup:

• 🔄 The processor was replaced by Amlogic. T972 (30 percent more productive).
• 🎤 A remote with voice control (but only in the version for India and China).
• 📺 Added support HDR10 Dolby Audio.

The main disadvantage is the absence 4K If you want high definition, look for a diagonal of 50" and above.

2020-2021: transition to 4K and MEMC

The models of these years got:

• 📊 Permission 3840×2160 (4K UHD) even 43-inch-sized.
• 🎮 Technology MEMS 60/120 Hz for video smoothness (important for gamers).
• 🤖 Built-in Google Assistant (in models for the global market).

⚠️ Note: In 2021, Xiaomi began to use in Mi TV 4X different panels from different manufacturers (for example, BOE or CSOT). The quality of the picture can vary even on TVs of the same model!

Where to buy spare parts for Xiaomi Mi 4X past 2020?

If your TV is released before 2020, it can be difficult to find original parts.

• 🛒 Xiaomi official service: spare parts for models older than 3 years are often absent, but you can order through partner workshops.
• 🌍 AliExpress: Search by exact model number (e.g., by name, L43M5-5ARU Pay attention to the seller's rating!
• 🔧 Local workshops: some offer used parts for disassembly.

Average prices for popular parts (2023):

⚠️ Warning: Before buying a spare part, be sure to check its article with what is indicated on the old part. TV 4X 2018 and 2019 are similar in appearance, but have different connectors!

Frequent problems Xiaomi Mi 4X and year-by-year reference

Some malfunctions are specific to specific years of release, and knowing them can prevent a breakdown or quickly fix it.

2018: problems with Wi-Fi and overheating

The owners of 2018 models often face:

• 📶 Permanent Wi-Fi cliffs at 5GHz Solution: Go to 2.4GHz or use Ethernet.
• 🔥 Overheating of the processor during long-term video watching, helps with additional cooling (for example, USB-fan).
• 🔄 Hanging when updating. Never update your firmware over the air, only through the air. USB!

2019: Bugs with sound and HDMI

Typical complaints:

• 🔊 Sound distortion at high volume, cheap speakers, culprit, solution: plug in the sound bar.
• 📺 HDMI-ports are not recognized 4K@60Hz. The problem is the firmware – update the software to the latest version.

2020-2021: MEMC and artifacts of the image

In new models, more often occur:

• 🎮 Artifacts when switched on MEMC (blurring, "ghosts" → Picture → Movement.
• 🔴 The reddish tint on the dark scenes. It's a defect in the panel. BOE — replacement.

How to update the firmware on Xiaomi Mi 4X yearly?

The upgrade process depends on the age of the TV, and here is a general guide to the specifics of each year:

For 2018-2019 models

1. Download the firmware from the official website (choose the version for your model!).
2. Unpack. ZIP-archive and copy the file update.zip flash-drive (FAT32).
3. Insert the flash drive into the TV and go to Settings → About TV → System Update → Local Update.

⚠️ Note: 2018 models do not support automatic updates over the Internet – only manually!

For models 2020-2021

Here you can update in two ways:

1. By air: Settings → On TV. → Updating the system → Check for updates.
2. Local: As described above, but the firmware file must be signed (look for versions marked stable).

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Before the update, turn off everything. USB-Device and log out of your Mi Account. This will reduce the risk of failure.

FAQ: Frequent questions about Xiaomi Mi 4X