Xiaomi Redmi Note 4 marked a milestone in the history of the budget segment of mobile devices, setting new standards for performance for the mass consumer. Many users still actively use this model, valuing it for the balance between price and capabilities. The device came to market as a response to the request of the audience for an affordable but powerful gadget with a metal body and a capacious battery.
At the heart of the device is the Snapdragon 625 processor, which has earned a reputation as one of the most energy-efficient chips of its time. It's not just a marketing ploy, but a real engineering fortune that has allowed the smartphone to last up to two days without recharging with moderate use, a factor that often becomes a deciding factor when choosing a device to travel or work away from the outlet.
However, to squeeze the Redmi Note 4 maximum, you need to properly configure the software shell MIUI. Standard settings are often focused on energy saving at the expense of performance, so competent system optimization can radically change the experience of interaction with the gadget. In this article, we will discuss key aspects of operation, hidden functions and nuances of maintenance.
Technical features and platform Snapdragon 625
At the heart of the device is the 8-core Qualcomm Snapdragon 625 processor, made with a 14-nanometer process technology. This architecture has achieved the perfect balance between heat generation and performance. Unlike competitors, which often overheated under load, the Xiaomi Redmi Note 4 maintains a comfortable temperature even during long gaming sessions.
The Adreno 506 graphics accelerator provides smooth interface rendering and support for modern graphics libraries. While today’s heavy games may require lower graphics settings, everyday tasks and multimedia work flawlessly. It’s important to note that the amount of RAM varies across modifications, which directly affects the speed of switching between applications.
The secret of chip popularity
The screen is protected by Corning Gorilla Glass, but its characteristics should be considered in the context of the release time. Full HD resolution at a diagonal of 5.5 inches gives a high density of pixels, making the picture clear and rich. For the user's eyes, this means comfort when reading texts and watching high-resolution videos.
Optimization of MIUI interface and speed
The MIUI shell installed on the Redmi Note 4 offers a variety of customization tools, but requires fine-tuning for maximum speed. By default, the system aggressively manages background processes, which can lead to delays in receiving notifications or restarting applications. To avoid this, you need to manually adjust settings for frequently used programs.
The developer menu, which is accessed by repeatedly tapping the build number in the About Phone section, contains hidden controls, and it recommends turning off window animations and transitions, which will visually speed up the interface, which is especially true for devices that have been in use for several years.
- 🚀 Turn on the acceleration option GPU smoother-scrolling.
- 🔋 Activate Ultra Battery Saver mode only in critical discharge situations.
- 📱 Turn off ads in system applications through Mi Account settings.
Keep in mind that you can clean your cache regularly and remove unused applications. The built-in Security tool does this effectively, but manual control is still necessary. Freeing up internal memory directly affects the speed of writing and reading data, preventing micro-freezes of the system.
Setup of the camera for high-quality shooting
The main camera module Xiaomi Redmi Note 4 is based on the Sony IMX258 sensor with a resolution of 13 MP. Despite the fact that this is not a record by modern standards, the correct setting allows you to get great pictures in good lighting.
For video shooting, it is recommended to use a resolution of 1080p at 30 fps, since higher frame rates can lead to unstable operation of the image processing processor. Stabilization in this device is software, so it is better to use both hands or a tripod when walking to minimize shaking.
⚠️ Note: Using third-party camera apps (GCam) can significantly improve dynamic range, but requires finding a specific version compatible with the Snapdragon 625 processor.
At night, you should activate the manual mode and set the minimum possible value. ISO, So you can avoid digital noise, and you can also increase the shutter speed, so you can make the smartphone immobile. RAW-Post-production files provide much more opportunities for color and light correction.
Energy efficiency and battery life extension
A 4100 mAh battery is one of the main advantages of the model. However, lithium-ion batteries tend to degrade over time. To maximize the life of a Redmi Note 4 battery, avoid full discharges to zero and recharges above 90% in everyday use.
MIUI provides detailed statistics on energy consumption, and by analyzing this data, you can identify parasitic applications that consume resources even in the background, often social networks and messengers with non-optimized versions.
☑️ Checklist for battery health
Quick Charge 3.0 fast charging technology allows you to replenish energy in a short time, but frequent use of maximum currents can accelerate the wear of battery chemistry. For night charging, it is better to use a less powerful power supply or turn on charging optimization mode in the settings.
Comparison of characteristics with competitors
To objectively assess the Xiaomi Redmi Note 4’s market position, it is useful to compare its key parameters with direct competitors from the same period, which will help you understand which tradeoffs were sacrificed for cost and where the manufacturer showed generosity.
| Parameter | Xiaomi Redmi Note 4 | Competitor A | Competitor B |
|---|---|---|---|
| Processor | Snapdragon 625 | Helio P10 | Exynos 7870 |
| Battery | 4100mAh | 3,000 mAh | 3300mAh |
| Case material | Metal | Plastic. | Metal |
| Imprint scanner. | Got it (back) | No. | Got it (front) |
As you can see from the table, the autonomy and presence of NFC (in some regional versions) make this model stand out from its peers. The metal case not only improves heat sink, but also gives the device a premium look, which is rare in the budget segment.
💡
When buying a used copy, be sure to check the vibrator and speakers, as these components often wear out first when used actively.
Unlocking the loader and installing custom firmware
For advanced users, the Xiaomi Redmi Note 4 is interesting to unlock the bootloader, which opens up access to custom recavators (TWRP) and alternative operating systems such as LineageOS or Pixel Experience.
Before you start, you need to create a Mi Account and link the device to it, and after you apply, you have to wait 3 to 7 days before you get permission to unlock it, which is a security measure designed to protect user data from theft.
⚠️ Warning: Unlocking the bootloader results in a complete reset of all data on the device. Be sure to back up important information before starting the procedure.
Using third-party firmware can revive an old smartphone, giving it new versions of Android and fresh security patches. However, it is worth considering that the camera and some sensors may not work properly without the original manufacturer drivers.
💡
Unlocking the bootloader voids the warranty, but gives you full control over the system and the ability to install modern versions of Android.