How to speed up Xiaomi Redmi 7A: full optimization instructions

The Xiaomi Redmi 7A, released in 2019, is still a popular budget smartphone thanks to its robust hardware and support for updates, but over time, even this unpretentious device begins to slow down: apps open for a long time, animations twitch, and the battery goes down in half a day, due to a clogged MIUI system, background processes and outdated settings.

In this article, we’ll look at 10 proven ways to speed up the Redmi 7A, from basic (cache cleaning) to advanced (disable system services via ADB). All methods are tested on current versions of MIUI 12-14 and do not require root rights.

1.Diagnosis: Why is the Redmi 7A slowing down?

Before optimizing a smartphone, it is important to understand the cause of lags, and 80% of cases are to blame:

• 📱 Overloaded memory: less than 1 GB of free space on internal storage.
• 🔄 Background processes: MIUI by default holds RAM Up to 20 apps, even if you don’t use them.
• 🗑️ Garbage cache: system cache (/cache) cache of applications (Android/data) not cleaned for years.
• 🔋 Energy saving: Battery and Performance modes in MIUI conflict.
• 📲 Outdated firmware: on Redmi 7A after MIUI 11 bugs with optimization of Snapdragon 439 appeared.

To accurately identify a bottleneck, open Settings → The phone. → Version. MIUI and press 5 It's a "core" that opens a hidden menu. CIT (Miui Test, where you can see download graphs in the Performance section CPU/GPU. If the processor load is higher than 70% c) a problem in the background, if under 100% When opening applications - there is not enough RAM.

System Cleanup: Cache, Garbage and Unnecessary Files

The first step to speed up is to free up memory. On the Redmi 7A with 16/32GB of storage, it is critical to keep at least 2-3GB of free space.

1. App cache: go to Settings → Apps → App management, select the “heavy” one (like Facebook or TikTok) and click Clear Cache.
2. System garbage: use the built-in Security → Cleanup app. Here you can delete temporary files, APK residues and duplicate photos.
3. Update files: /sdcard/MIUI/ota folder often weighs 1-2 GB. Delete its contents through any file manager (e.g. Mi File Manager).

For deep cleaning, connect your smartphone to your PC and use ADB to execute the command:

adb shell pm trim-caches 256M

This command will forcefully clear the cache of all applications, limiting its size to 256 MB.

⚠️ Note: Do not manually delete folders /data/dalvik-cache or /system — It'll cause a breakdown. MIUI and require a reflashing.

3. MIUI Optimization: Hidden Performance Settings

MIUI hides a few key parameters that affect speed, and here's how to activate them:

• 🚀 Performance mode: go to Settings → Additionally. → Special facilities → Developer (if no item, tap 7 times on "Version" MIUI» In "About the phone"). Turn on: Turn off window animation (set the value 0.5x). Background processes → Limit to 2 processes. Do not save actions (disables the latest application log).
• 🔧 Optimization MIUI: In the same developer menu, turn on the GPU-acceleration and forced GPU-rendering. It'll unload. CPU graphical.
• 📵 Shutdown MIUI Optimization: perform in ADB: adb shell settings put global miui_optimization_disabled 1 This command disables built-in "optimizations» MIUI, Which actually slows down your smartphone.

After you apply the settings, restart your phone, and the effect will be noticeable immediately: animations will become smoother, and applications will open 20-30% faster.

4. Background and autoboot management

One of the main bottlenecks of the Redmi 7A is just 2GB of RAM. MIUI by default allows all applications to run in the background and autoboot, which leads to a constant shortage of RAM.

Pay special attention to Google Play Services and Mi Push Service, which eat up to 300 MB of RAM even in the plain.

1. Go to Settings → Applications → All applications.
2. Search Google Play Services and click on “Limit background activity”.
3. For Mi Push Service, turn off notifications and autostart.

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If notifications from messengers have stopped coming after limiting background processes, add them to the exceptions in the “Security → Cleanup Lock” menu.

5. Update firmware and rollback to stable version

Fresh versions of MIUI don't always mean better performance. For example, the Redmi 7A on MIUI 13 has become slower due to the new interface and increased RAM consumption. If your smartphone slows down after the upgrade, consider two options:

• 🔄 Retracement MIUI 12: The most stable version for Redmi 7A. Download the firmware from Xiaomi's official website (select Global region and Stable version). To install: Copy the.zip file to the root of the phone's memory. Go to Settings → The phone. → Update system. Tap three dots in the top right corner and select "Select firmware file».

Installation of the custom core

Pixel Experience

Havoc OS

Before you run your firmware, back up through Settings → Additional → Backup or Mi Cloud. Fastboot (fastboot flash all command) erases all data, including photos in internal memory.

⚠️ Note: Do not install firmware for other models (e.g. Redmi 7 or Redmi). 8A) — This will cause a device to crash, and check the file name: it must contain pine. 7A).

6.Alternative launchers and lightweight applications

The standard MIUI launcher is beautiful, but heavy on the Redmi 7A. Replacing it with a lightweight alternative can speed up the interface by 30 to 50 percent.

• 🏠 Nova Launcher: Minimalist launcher with gesture support. In settings, turn off animations and install Grid 5×6 save memory.
• ⚡ Lawnchair: Open Launcher Based on Android Open Source Project (AOSP). Easy. MIUI 2 times.
• 📱 POCO Launcher: Optimized for weak smartphones, has built-in cleaning function RAM.

Also replace the “heavy” applications with lighter versions:

Alternative launchers may require permission to install from unknown sources (Settings → Applications → Special Access → Install Unknown Applications).

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Replacing the standard MIUI launcher with a Nova Launcher or Lawnchair reduces the load on the processor by 15-25% and speeds up the opening of applications by 0.5-1 seconds.

Hardware methods: replacement of thermopastes and batteries

If software methods fail, the problem may be physical wear and tear. Redmi 7A after 3-4 years of operation often suffers from:

• 🔥 Overheating: The heat paste on the Snapdragon 439 processor dries out, causing trottling (automatic frequency reduction) CPU heat-up).
• 🔋 Battery degradation: Capacity drops below 70%, and the phone starts to "lay down" at a charge level below 30%.

Decisions:

1. Replacement of thermopaste: Cost: 500-800 rubles (in the service center). Effect: the temperature of the CPU will decrease by 10-15 ° C, which will prevent trottling. Self-driving: requires disassembling the phone and applying a new paste (for example, Arctic MX-4).

Battery replacement

• Original battery: Art. MB11 (capacity 4000 mAh).
• Cost: 1200-1500 rubles (with work).
• Signs of wear: the phone turns off at 20-30% charge, quickly discharges into idle.

⚠️ Note: When replacing the battery, use only the original battery or certified analogues (for example, from the battery). ZMI). Cheap Chinese batteries may swell or misrepresent charge levels.

8.Extreme measures: reset to factory settings and root

If all of the above methods fail, there are two radical ways:

• ⚙️ Hard Reset (reset to factory settings): Backup your data (photos, contacts, SMS). Go to Settings. → The phone. → Settings reset. Select "Erase all data" and confirm.

Once reset, the phone will look like new, but you'll have to reset all the apps and settings, so don't restore the data from the backup, it'll bring back the old problems.

Getting root rights

Root gives you complete control of the system, but it gives you no warranty and it increases security risk.

• Remove MIUI system applications (e.g. Mi Video, Mi Music).
• Use Greenify to freeze unnecessary services.
• Install a custom core for overclocking CPU/GPU.

Instructions for obtaining root for Redmi 7A:

1. Unlock the bootloader through the Mi Unlock Tool.


2. Install TWRP (pine version).




3. Switch Magisk through TWRP.

Remember, root and custom firmware can cause your phone to run insecurely if you're not sure what you're doing. On Redmi 7A, root also stops running Google Pay and some banking apps.

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Resetting to factory settings is the most efficient way to eliminate software lags, but it erases all data. Use it only after you have created a backup.

FAQ: Frequent questions about Redmi 7A acceleration