Xiaomi Redmi Note 4X: what year of release and the relevance of the model

Many users are still searching for information about the legendary smartphone, trying to figure out what year Xiaomi Redmi Note 4X release, to assess its relevance in the modern market of gadgets. This device has become a real bestseller, turned the idea of budget devices, and still arouses keen interest among collectors and those who are looking for a reliable second phone. Understanding the release date is necessary not only to determine the age of the device, but also for the correct selection of accessories, firmware and residual value.

The device was launched in early 2017, although it was unveiled in China earlier, and February 2017 is considered the official reference point for the international version, which received the X index in the name, a modification that was the result of Xiaomi’s collaboration with processor manufacturer Qualcomm, which radically distinguished it from its predecessor.

In this article, we will discuss in detail the chronology of the release, the technical features and the reasons why this smartphone is still mentioned in reviews, you will learn how to distinguish the original model from the fake, which versions of memory existed and why this device became a cult.

Release history and chronology of releases

The official launch of the smartphone, codenamed Mido, took place in China on February 14, 2017, on Valentine's Day, a marketing ploy that quickly gained popularity among young people, with the Chinese version being called the Redmi Note 4X, but based on the MediaTek processor, which prompted mixed reviews from early adopters.

That changed dramatically with the global release, which debuted at MWC 2017 in Barcelona in late February, and was the device, which featured the Snapdragon 625 chipset, which became widespread in Europe and the CIS, with a two-week difference in dates between the Chinese and global releases, allowing the company to quickly saturate the market.

Importantly, the model has been in production for a long time, with lots released in 2018 and even early 2019, so when you buy a handheld device, you can find a copy that is physically produced later than the date of the announcement, but technically belongs to the 2017 model range.

⚠️ Note: The production date shown on the box or system menu may differ from the model’s release date. The 2018 smartphone is technically the 2017 model with all its features and limitations.

Key differences between the 4X version and the regular Redmi Note 4

The main difference that determined the fate of the device was the paid basis. While the regular Redmi Note 4 (global version) ran on the MediaTek Helio X20 chipset, the 4X version received the Qualcomm Snapdragon 625. This decision was fateful, since the processor from Qualcomm had much better energy efficiency and stability.

Visually, the devices are almost identical, but the attentive user will notice the differences in the marking on the back cover. the logo of the processor on the back of the 4X version was often missing or replaced with the Snapdragon logo in special editions. The Android version “out of the box” has also changed: if the regular Note 4 came with Android 6.0, then the 4X already came with the more recent Android 7.0 Nougat.

The camera and screen specifications remained the same, but the optimisation of the system for the new processor allowed for a smoother interface, with users noting that the heat was less pronounced under loads and battery life increased by 15-20% compared to the MediaTek version.

Technical characteristics and configurations of memory

The smartphone was offered in several configurations, which allowed you to choose the device for different needs and budget. The basic version was equipped with 3 GB of RAM and 32 GB of internal storage, which for 2017 was considered the standard for the mid-segment.

The screen is made using IPS technology with a diagonal of 5.5 inches and a resolution of Full HD (1920×1080 pixels). Pixel density is 401 ppi, which provides a clear picture and no graininess in normal use. Protection of the display provides glass Gorilla Glass, but its generation (3 or 4) in different batches could differ.

Below is a table with the main characteristics of various modifications of Xiaomi Redmi Note 4X:

It is worth mentioning the existence of a limited edition version of the "Initial Edition" with 4 GB of RAM and a unique holographic back cover, released in a circulation of only 100,000 units.

Relevance of the device in the current period

The Xiaomi Redmi Note 4X is now a dated device, but it is still capable of performing basic functions. Official software support stopped a few years ago, and the latest available version of MIUI is based on Android 9 Pie. This means that many modern applications may not work properly or at all.

In terms of performance, the Snapdragon 625 processor is still considered one of the most successful in the history of mobile chips due to its stability. For calls, instant messengers, navigation and watching YouTube videos at 1080p resolution, its power is still enough. However, running heavy games and multitasking with modern “heavy” applications will cause noticeable delays.

⚠️ Many banking applications and services with high security requirements may stop working on Android 9, as support for older versions of the operating system is gradually discontinued by software developers.

The device is excellent as:

• 📱 The first smartphone for a child or an elderly person thanks to a durable case.
• 🚗 Navigator in a car or radios with support for Android Auto.
• 📺 Remote control for smart home or media center.
• 🎮 Portable game console for retro emulators (Dendy, Sega, PS1).

💡

If you’re buying a phone for navigation, look out for the 4GB version – it’s better at handling background map loading and simultaneous navigator and music.

Software and Customization Opportunities

One of the reasons for the longevity of the model was the huge community of developers who created many custom firmware. Even after the official updates stopped, enthusiasts ported Android 10 and 11 to the device through the projects LineageOS and Pixel Experience, which allows you to extend the life of the smartphone and access to more recent versions of applications.

The process of unlocking the bootloader on this device is standard for the Xiaomi ecosystem: you need to register a Mi Account, link the device and (wait) for the wait timer (usually 3 to 7 days) to expire.

For advanced users, the following modification options are available:

• 🛠️ Installation of custom recaveri TWRP backup.
• ⚡ Getting Root Rights through Magisk to Deeply Configure the System.
• 🎨 Installation of design themes and fonts not available in the official store.
• 🗑️ Complete removal of system debris and pre-installed Chinese services.

fastboot flash recovery twrp-3.x.x-x-mido.img

However, it is worth considering the risks: the installation of unofficial software can lead to the inoperability of individual modules, for example, a camera or fingerprint sensor, if the drivers are selected incorrectly.

💡

The presence of a huge number of custom firmware makes the Redmi Note 4X a unique device that can be adapted to modern requirements even years after the release.

Typical malfunctions and tips for buying used

When buying a used one, you should pay attention to the state of the battery. Given the age of the model, the 4100 mAh battery could have lost a significant part of its capacity. Signs of wear are rapid discharge, turning off the phone at 15-20% charge or bloating the back cover.

Another common problem is the plume of the main camera module or proximity sensor, which is manifested in the black screen during calls or the inability to take photos, and there is also a common problem with sticking volume buttons due to moisture or dust.

When checking the device, be sure to follow the following steps:

• 🔍 Enter the code ##6484## to log in to the engineering menu and check all sensors.
• 📶 Check Wi-Fi and Bluetooth for stable connection.
• 🔊 Test the vibrator and speakers at maximum volume.
• 🔋 Estimate the charging speed and heating in the lower part of the body.

⚠️ Warning: Avoid buying devices with an unlocked bootloader (open lock icon when turned on) unless you plan to flash it. These phones could be used to test unstable software, which could affect memory life.

The market is crowded with refurbished units that have their body and battery replaced but retain the original board, often labeled "Refurbished" and cost less than new ones, but may have hidden soldering defects.

Frequently Asked Questions (FAQ)