How to speed up the Xiaomi Redmi 7A: from cleaning the cache to fine-tuning MIUI

Xiaomi Redmi 7A is one of the most popular budget smartphones, but over time even it begins to “slow down”: applications open for a long time, animations twitch, and the system hangs. The reason is not always the “weak hardware” – more often to blame cache, background processes and unoptimized MIUI settings. In this article, we will analyze 10 working ways to accelerate the Redmi 7A without root rights and data loss, and also tell what user errors kill performance.

The smartphone was released in 2019 with a Qualcomm Snapdragon 439 processor and 2-3 GB of RAM — by the standards of 2026, these are modest specs. However, even on such hardware, you can achieve smooth operation if you configure the system correctly. We tested all methods on Redmi 7A with MIUI 12.5 and Android 9 Pie — the results in the table below.

Important: if the phone started to lag after the update, the problem may be in the firmware, in which case only a rollback or a clean installation of the software (about this in the last section) will help.

1.Cache and garbage cleanup: the first step to dispersal

Application cache and system debris are the main brakes on the Redmi 7A. Even after deleting the programs, their temporary files remain in memory, taking up space and slowing down.

• 🧹 Cleaning the application cache: go to Settings → Annexes → App management, select any and click Clear Cache. Repeat for all commonly used programs (especially instant messengers and social networks).
• 🗑️ Removing garbage through Security: Open the Security app (shield icon), click Cleanup and wait for analysis. Delete all unnecessary files, including app residues and ad cache.
• 📂 Manual cleaning of the Download folder: go to the Files and delete the old ones APK, Imaging and documents, especially a lot of garbage is piling up in folders. DCIM/.thumbnails (photo-picture).

After cleaning, reboot your phone, it will reset the background processes. If your memory is less than 1 GB, move to the next section.

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Do not clear the cache of system applications (such as Android System WebView or Google Play Services) – this can lead to errors in the operation of the smartphone.

⚠️ Warning: Do not use third-party cleaners like Clean Master or CCleaner, which often delete important files and consume resources themselves, impairing performance.

Autoboot Optimization: What Prevents a Quick Startup

The Redmi 7A is slowing down not only because of a lack of memory, but also because of apps that automatically start when you turn on your phone. Many programs (especially Chinese ones) are added to the startup without your knowledge.

1. Go to Settings → Applications → Application Management → Autoboot.
2. Turn off auto-run for all unnecessary apps (e.g. games, stores, instant messengers, except those you use daily).
3. For system applications (for example, Mi Video or Mi Music) you can not turn off the autoboot - they will have to freeze (about this in the section about ADB).

Also check Settings → Battery and Performance → Battery Management → Applications selection. Here you can limit background activity for individual programs, which will save both charge and processor resources.

3. Animation setup: how to remove delays in MIUI

System animations in MIUI look beautiful, but slow down on weak devices, and can be turned off or accelerated through the development settings.

1. Activate Developer Mode: Go to Settings → About Phone and click on MIUI Version 7 times.
2. Back to Settings → Additionally. → For developers.
3. Find the points: Windows animation scale → set 0.5x or turn off; transition animation scale → 0.5x; Animator duration scale → 0.5x.

When you change the interface, it's going to be less smooth, but it's going to be responsive. If you turn off the animations completely, some transitions will look abrupt -- experiment with the settings.

⚠️ Warning: Do not change other options in the developer menu (e.g., Do not turn off the screen or background processes) unless you understand their purpose. Incorrect settings can lead to overheating or rapid battery discharge.

4. Use of Lite versions of applications

Many popular apps have lightweight versions that are optimized for weak smartphones, such as:

• 📱 Facebook Lite instead of Facebook (saving up to 50% of memory);
• 💬 Messenger Lite instead of Messenger;
• 🎵 Spotify Lite or YouTube Go instead of the main versions;
• 📷 Instagram Lite (weighs just 2MB vs 30)+ MB of the original).

Also replace the standard browser with Chrome Lite (or Bromite for ad blocking) – this will reduce the load on the processor when surfing. If you play games, try PUBG Mobile Lite or Free Fire Lite.

Critical: Redmi 7A does not recommend installing more than 2-3 “heavy” applications (e.g. TikTok, Wildberries, bank clients), each application in the background eats up to 200-300 MB of RAM.

5. Factory reset: When nothing helps

If the phone is lying down after all the manipulations, the last chance is hard reset, which will delete all the data, but return the smartphone to a "clean" state.

Backup photos and contacts | Record usernames/passwords from accounts |Delete Google account (if you sell a phone) | Charge the battery by at least 50%-->

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data and confirm the action.
3. After the reboot, set the phone up as new, but don’t restore the data from the backup – it will bring back old problems.

If the phone still brakes after reset, the problem may be in the firmware or hardware (for example, worn flash memory), in which case only flashing or replacing the memory module will help.

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Factory reset removes all data, including apps, photos and account settings. Use this method only as a last resort!

6. ADB Optimization: For Advanced Users

If standard methods don't work, you can manually disable unnecessary system processes through the Android Debug Bridge (ADB), which requires a connection to a computer, but gives you more control over the system.

1. Install. ADB-PC drivers.
2. Turn on the phone to debug by USB (Settings → Additional → For developers).
3. Connect Redmi 7A to your computer and execute at the command line: adb shell pm uninstall -k --user 0 com.miui.videoplayer adb shell pm uninstall -k --user 0 com.miui.player adb shell pm uninstall -k --user 0 com.xiaomi.midrop These commands will remove the standard Mi Video, Mi Music and Mi Drop apps (they can be returned via reset).

List of safe to remove packets for Redmi 7A:

⚠️ Note: Do not delete packages with the names com.android, com.google or com.qualcomm – this can cause your phone to fail).

7. firmware update: is it worth switching to caste

The official updates for the Redmi 7A have long since stopped, but you can install custom firmware (like LineageOS or Pixel Experience).

• 🆕 More recent version of Android (up to Android 11);
• ⚡ Less pre-installed garbage;
• 🔄 Regular security updates;
• 🎨 Ability to fine-tune the interface.

However, there are risks:

• ❌ Loss of warranty (if it is still valid);
• ❌ Possible bugs with camera or module 4G;
• ❌ Difficulty of installation for beginners.

If you decide to cast, follow the instructions from the XDA-Developers forum for Redmi 7A (codename pine).

1. Unlock the bootloader through the Mi Unlock Tool;
2. Make a full backup through TWRP;
3. Check the compatibility of the firmware with your model.

8 Hardware problems: when the "iron" is to blame

If the software methods did not help, the cause of the brakes may be:

• 🔋 Worn-out battery: If the battery swells or its capacity falls below 70%, the phone will spontaneously limit performance.
• 💾 Damaged flash memory: If the phone reboots frequently or apps suddenly close, there may be a problem with the eMMC chip. Check out the ##6484## test (type in the dialer number).
• 🔥 Processor overheating: if the case is very heated, trottling (automatic frequency reduction) is triggered CPU). Clean your phone of dust and replace the heat paste (at the service center).

If you suspect a hardware malfunction, contact service.Redmi Repair 7A It is inexpensive (replacement of the battery — ~1000–1500 ₽, flash-replacement — ~2000–3000 ₽).

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Before visiting the service, make a backup copy of data – when you replace flash memory or motherboard, all files will be lost!

FAQ: Frequent questions about Redmi 7A acceleration