How to speed up Xiaomi Redmi 8A to maximum performance: Step-by-step instructions

Smartphone Xiaomi Redmi 8A with Snapdragon 439 and 2/3 GB of RAM eventually begins to “brake” even when performing basic tasks. Delays manifested in the interface hanging, long download of applications and unstable multimedia. The reasons lie in the overloaded system, fragmented memory and outdated software. Fortunately, you can return the device to its former agility without contacting the service center – quite competently optimize the software and hardware parts.

In this article, we'll break down 10 proven acceleration methods, from simple (cache cleaning) to advanced (firmware replacement), all of which are tailored specifically for the Redmi 8A, given its technical limitations. You'll learn how to reduce CPU load, free up RAM, and even slightly overclock the hardware without risk to the system. Importantly, some of the methods require unlocking the bootloader, we'll explain in detail when it's necessary and how to do it safely.

1. Diagnostics of the current state of the smartphone

Before you start optimizing, you need to understand what exactly is slowing down your Redmi 8A. For this, use built-in tools and third-party utilities:

• 📊 CPU load monitoring: go to Settings → The phone. → System status. This is a real-time CPU load, and if it's consistently above 70 percent, the system is overloaded.
• 📱 Memory Check: Open Settings → Annexes → Working. If you're less than 300MB free, applications push RAM.
• 🔋 Battery Analysis: C Settings → So you can see what programs are using up in the background, and often they're the ones that are causing the lags.

For a detailed diagnosis, install the CPU Monitor or AIDA64 app from Google Play.

• 🔥 Processor temperature (critical if above 60)°C)
• 🕒 Core operating time (if one core is loaded 100% - software failure is possible)
• 📉 RAM usage schedule (peaks indicate "gluttonous" apps)

⚠️ Attention: If in AIDA64 bug «MSM Thermal Engine stopped" is a sign of overheating.Right away from dust on your phone and close the background apps.

System Cleanup: Cache, Garbage and Unnecessary Files

The main reason for the Redmi 8A brakes is clogged memory, and even when there is free space, the system uses internal storage for cache and temporary files, which accumulate fragmentation and slow down reading/write.

Step-by-step cleaning:

1. Cash app: 🧹 Go to Settings. → Warehouse → Clear cache (releases 1-3 GB). 🔄 For deep cleaning, use the settings → Annexes → Select an application → Warehouse → Clear the cache.
2. Systemic debris: 🗑️ Install Files by Google or CCleaner – they will find up to 500 MB of unnecessary files (logs, thumbnails, update residues). 📁 Manually check the folders: /storage/emulated/0/Download (load), /storage/emulated/0/DCIM/.thumbnails (photo-picture).

Remnants of remote programs

• 🧩 Use it. SD Maid (requires root) to search for “orphan” files – the remnants of uninstalled applications.

⚠️ Warning: Don't clean the folder /data/dalvik-cache manually, it will lead to system failure. To optimize it, use only specialized utilities like Greenify.

3. Optimization of autoboot and background processes

Redmi 8A on Android 9/10 suffers from excessive autoload of applications. Many programs (especially social networks and messengers) run when the phone is turned on and hang in the background, consuming RAM.

Methods of limitation:

• 🚫 Through Settings: Go to Settings → Annexes → App management. Select a program (e.g. Facebook) → Auto-start → Turn off. To completely shut down the background: Battery → Optimizing the battery → All applications → Select to Limit Background Activity.

With Greenify (without root):

• Install Greenify from the Play Market.
• Add to the list of “sleeping down” messengers, social networks and games.
• Activate Aggressive Doze (required) ADB-team).

For advanced users: with the unlocked bootloader, you can disable system services via ADB:

adb shell pm disable-user --user 0 com.miui.analytics


adb shell pm disable-user --user 0 com.xiaomi.ab

This will disable Xiaomi’s analytics collection, which will free up to 150MB of RAM.

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If after turning off the autoboot notifications from messengers stopped coming, add them to the exceptions in the battery settings (Settings → Battery → Battery Optimization → Exceptions).

4. Update firmware and transition to custom software

MIUI stock firmware for Redmi 8A often suffers from optimization. Recent official updates (e.g. MIUI 12.5) have added new features but increased the load on the hardware.

1. Update to the latest official version: 🔄 Go to Settings. → The phone. → Updating the system. 📥 If there are no updates, download the firmware from the official website and install it through Recovery.

Install custom firmware (requires unlocking the bootloader):

• 📌 Popular Options for Redmi 8A: LineageOS 18.1 (Android 11) is a minimalist interface, no unnecessary services. Pixel Experience is pure Android with optimizations for weak devices. Havoc-OS is customization. + improved productivity. ⚙️ Installation instructions: Unlock the bootloader via Mi Unlock Tool (waiting 7-15 days). TWRP Recovery for Redmi 8A (version 3.5.2+). Squeeze the firmware through TWRP, pre-backup.
• 🛠️ Using Recovery (if the phone doesn't turn on): Turn off the device. + Volume up before the Mi logo appears. From the Recovery menu, select Wipe Data. → Wipe All Data.

⚠️ Attention: After the Redmi reset 8A It can be up to 10 minutes for the first time, which is normal. Don't interrupt the process, even if the screen is stuck on the logo for a long time.

To avoid data loss:

• 📎 Make a backup through Settings → Additionally. → Backup.
• 🖥️ Copy photos/videos to your PC or cloud (Google Photos, Mi Cloud).
• 📋 Save the list of installed apps with App Backup & Restore.

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Resetting to factory settings only removes user data, system updates and firmware remain unchanged.

8 Additional Advice for Advanced Users

If you’re ready to dive into the technical details, these methods will give you an additional boost in productivity:

• 🔧 Shutdown MIUI Optimizations (requires) ADB): adb shell settings put global miui_optimization_disabled 1 It'll shut down the background processes. MIUI, It can also disrupt certain functions (such as dark topics).
• 📶 Switch to 2G/3G: B Settings → SIM-Maps and mobile networks select only 3G. This will reduce the load on the modem and save charge, but will limit the speed of the Internet.
• 🎯 Use of Xposed Framework (Android only) 9): Install Greenify and Amplify for deep background control. Disable Flag Secure will allow you to take screenshots in secure applications (for example, banking). 8A You can install Ubuntu Touch or PostmarketOS (Linux for smartphones), which will radically change the experience of use, but it will require deep knowledge of the firmware. MIUI To enable optimizations back, follow the command: adb shell settings put global miui_optimization_disabled 0 Then restart the phone. FAQ: Frequent questions about Redmi acceleration 8A Can we speed up Redmi? 8A Yes, most of the methods in this article (cache cleaning, autoboot disabling, setting reset) can be used without rooting. However, for deep optimization (such as removing system applications), superuser rights will be required. MIUI Is the phone slowing down? New versions MIUI (starting 12) Add background services for analytics and advertising that overload the weak Redmi processor 8A. Solution: back on MIUI 11 Or install custom firmware. How to check if I have a fake Redmi. 8A? Counterfeiting often gives off low performance: IMEI: enter *#06# And check with the code on the box. AIDA64 Snapdragon should be displayed 439 (SDM439). Camera: fakes have a module on 5 MP instead of MP 12 MP: Should I install Android? 11/12 on the Redmi 8A? Officially Redmi 8A Doesn't support Android 11+. Unofficial ports (e.g. LineageOS) 18.1) They work, but they can be unstable. Stay on Android 10 with MIUI 12.5 for better compatibility. How to speed up games on Redmi 8A? For gaming: Install GFX Tool and lower the resolution in games to 720p. Enable Performance Mode in Settings → Special Features → Game Mode. Close all background apps before launching the game.