Xiaomi Redmi Note 7 Optimization: From Garbage Cleanup to Advanced Settings

Xiaomi Redmi Note 7, released in early 2019, has long been considered the king of the budget segment thanks to the powerful Snapdragon 660 processor and high-quality matrix. However, even popular devices are not spared time, and owners often face a noticeable drop in performance, interface lags and fast battery discharge. This is a natural process of aging software and wear of physical memory, but the situation can be radically corrected without buying a new gadget.

Competent optimization brings the device back to its factory-like pace. In this article, we'll take a comprehensive approach to speeding up MIUI from basic cleaning to hidden engineering menus, and you'll learn which services are really needed and which are just devouring CPU resources.

Before we start taking radical steps, it's important to understand the architecture of your phone, because optimization isn't just about removing photos, it's about fine-tuning the interaction between hardware and software, and we're going to look at secure methods that don't require root rights, but will give you a tangible boost in the speed of the interface's response.

Basic cleaning and memory management

The first step to restore performance is to free up internal storage. The flash memory of the type eMMC 5.1 installed in the Redmi Note 7 critically slows down the entire system when filled by more than 85%. When free space runs out, the memory controller can not efficiently distribute data streams, which causes "freeze" and long application loads.

Don't rely solely on the standard Security app. While it's useful for quick checks, deep cleaning is best done manually or using specialized tools. Delete the social media cache, which often grows to several gigabytes, and transfer heavy media files to a memory card or cloud storage.

⚠️ Warning: Don’t use the dubious accelerator apps from Play Market that promise to “boost signal” or “cool processor”; they consume resources themselves and often contain aggressive advertising, negating all optimization efforts.

Pay special attention to the Download folder and the cache of messengers like Telegram and WhatsApp. These applications store all the photos and videos you viewed in the memory of the device. Regular cleaning of these directories through the file manager can free up to 10-15 GB of free space, which instantly affects the smoothness of work.

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Use the Cleanup function in your storage settings, but always check the file list before you delete so you don’t lose important documents.

Disabling advertising and system debris MIUI

MIUI is famous for its functionality, but it is also known for its abundance of built-in advertising and system services that work in the background. For the owner of the Redmi Note 7, disabling these elements is a critical step, as advertising modules constantly access the network and load the processor.

Start by turning off the MSA (MIUI System Ads) service. This is the system process that is responsible for displaying ads in standard applications. To deactivate it, go to Settings → Passwords and Security → Access to personal data. Find the msa list and turn off the switch. The system will ask you to wait 10 seconds - this is the protection against accidental disconnection, then you need to click "Stop".

Next, you should remove ads in system applications. Every standard application (Conductor, Music, Themes) has its own "Receive recommendations" switch. Turn it off wherever you find it, not only removing banners, but also reducing the network activity of the device.

• 📱 Open the Security app, click on the gear and turn off "Get recommendations".
• 🎵 In the Music app, go to the settings and uncheck the tick from "Show Advertising".
• 📂 In Explorer, go to settings and select "About Internal Files" by removing "Receive Recommendations".

Also, limit background activity for apps you rarely use. Go to Settings → Apps → All apps, select an unnecessary service and tap Battery → Background energy savings → Limit background activity. This will prevent them from affecting the speed of the phone.

Accelerating the interface through the developer settings

One of the most effective and safest measures to visually speed up a smartphone is to rescale the animation. Android and MIUI have default time delays for opening windows and transitions that may seem long on older devices.

To access these settings, activate the developer mode. Go to Settings → About Phone and quickly click 7 times on the MIUI Version field. After the notification “You became a developer” appears, go back to the main settings menu, select Additional → For developers.

In the menu that opens, look for the section that deals with drawing, and you're interested in three things: "Window animation," "Jump animation," and "Duration of animation." Change the value from the standard 1x to 0.5x, which makes the system's response instantaneous, creating the illusion of a more powerful processor.

⚠️ Note: Do not disable animation completely (meaning "No animation"), as this can disrupt the logic of some applications and make the interface twitchy, which will make navigation difficult.

You can also find a background process setting here. If you have a lot of apps installed, but you rarely switch between them, you can limit the number of background processes to 2-3. However, be careful: too tight a restriction can lead to the fact that messengers stop coming on time or music will stop when the application is folded.

Optimization of energy and battery

As the years go by, the lithium-polymer battery degrades, and the system begins aggressively throttling (reduce the frequency) of the processor to prevent the phone suddenly shutting down during peak loads.This is the main reason why the old Redmi Note 7 can run slowly even when the memory is full.

Check the battery status through an engineering menu or special diagnostic applications (for example, AccuBattery). If the wear exceeds 20-25%, software optimization will only give a temporary effect, and the best solution is a physical replacement of the battery.

Turn on power saving even at high charge if you want maximum performance on tasks that don't require graphics. Paradoxically, limiting background synchronization and reducing screen brightness unloads the power controller, allowing the processor to work more stable without overheating.

It's also a good idea to turn off unused communication modules. If you're not using NFC, Bluetooth or GPS right now, turn them off. The constant search for networks by these modules creates background loads on CPU interruptions, which is especially noticeable on budget chipsets.

Removing System Garbage and Bloatware

MIUI firmware often has many pre-installed applications that the user never uses, take up space, update in the background, and may conflict with the main software. Removal by standard methods is often impossible, because the Remove button is inactive.

To solve this problem, there is a method of removing through ADB (Android Debug Bridge, without root permissions, is a secure way to remove system applications that are usually hidden from the user. USB.

First, enable USB debugging in the developer menu. Connect your phone to your PC, install the drivers and the ADB platform. You can send commands to delete packets using the command line, for example, to remove a standard browser, you use a command:

adb shell pm uninstall -k --user 0 com.android.browser

• 🗑️ com.miui.videoplayer - standard video player (can be replaced by a video player) VLC).
• 🗑️ com.miui.player is a standard music player.
• 🗑️ com.facebook.katana – Facebook services, often sewn into the system.

⚠️ Be very careful when removing system packets through ADB. Do not remove components called "System", "Framework", "Settings" or "Security" or the phone may stop loading (bootloop).

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Removing unused system software through ADB is the most effective way to free up system resources without flashing.

Radical measures: Resetting and reflashing

If the software methods fail, the last and most effective option is a full factory reset or firmware reflash, and over time, registry errors, library conflicts, and tails from remote applications that cannot be manually cleaned.

Before you perform Hard Reset, make sure to back up all important data to the Mi Cloud cloud server or computer. The process will completely destroy all information on the internal drive. You can reset through the Settings menu → Advanced Settings → Restore and Reset → Reset.

More advanced users should consider installing custom firmware (like LineageOS or Pixel Experience). Pure Android without a MIUI shell runs on the Redmi Note 7 much faster and smoother, consuming less RAM. However, this requires unlocking the bootloader, which is officially only possible after a wait of 7 days (168 hours).

Unlock Bootloader is an official process, but it erases all data from the phone. Once unlocked, you have full control of the device, the ability to install a TWRP recap and gain root rights, which opens up access to deep kernel optimization.

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