How to Quickly Clear Cache on Xiaomi Redmi 9A: The Complete 2026 Guide

Your Xiaomi Redmi 9A is slowing down, apps are loading for a long time and memory ends up in the flat? 90% of the time, it's the overflowing cache - temporary files that the system and programs accumulate over time. Cleaning up the cache will not only free up to 1-3 GB of memory, but also speed up the phone by 20-40% without deleting personal data.

In this article, we'll show you 5 proven ways to clean up Redmi 9A cache (including hidden system files) that run on MIUI 12/13/14. We'll look at how to clean the cache of individual applications, browsers, and perform deep cleaning through the engineering menu. All methods are tested on real devices and do not require root rights.

Why is the Redmi 9A cache churning so fast?

The Redmi 9A is equipped with just 2 GB of RAM and 32/64 GB of internal memory. When used actively, cache accumulates 3 times faster than on flagships. Here are the main reasons:

• 📱 MIUI Optimizes background processes – the system creates a cache to quickly launch frequently used applications, but does not always clean it correctly.
• 🌐 Browsers and social networks (Chrome, Facebook, TikTok) save up to 500 MB of cache per week of active use.
• 🎮 Games (Free Fire, PUBG Mobile can borrow up to 1-2 GB cache for temporal textures and data.
• 🔄 Auto-updates of applications in the background create duplicate files.

According to Xiaomi, Redmi 9A with MIUI 12.5 and below cache takes up to 15% of total memory after 3 months of use. in new versions (MIUI 14) the problem is partially solved, but manual cleaning is still necessary.

Method 1: Clearing the cache of individual applications (without data loss)

The safest method is to delete the cache of specific programs, which will not delete your accounts or settings, but will free up space.

1. Open Settings → Applications → Application Management.
2. Slip on the three dots in the top right corner and select Sort by size.
3. Select an app (like Facebook or Chrome) and click Clear Cache.

Important! Do not clear the cache of system applications (com.android.systemui, com.miui.home) - this can cause MIUI to malfunction.

Close all background programs

Connect your phone to charge (if charge < 20%)

Check that the application does not have important unsaved data

Make a backup (for cloud-saving games)-->

Method 2: Completely clean the cache through storage settings

If you need to free up the maximum amount of space, use the built-in Cleanup utility:

1. Go to Settings → Memory of the device → Cleanup.
2. Click Scan and wait for the analysis to be completed (it will take 10-30 seconds).
3. Select the category of Cash applications and tap Clean.

On the Redmi 9A with MIUI 14, this method removes up to 1.2 GB of junk files at a time, including the cache of system processes.

⚠️ Note: Do not use the Deep Clean option in this menu – it removes not only cache, but also temporary application files, which can reset settings in some programs.

Method 3: Clearing the browser cache (Chrome, MIUI Browser)

Browsers are the main cache eaters. On Redmi 9A, Google Chrome can take up to 1 GB of temporary files.

For Chrome:

1. Open Chrome, tap it. ⋮ → History → Clear the data.
2. Select Time Range: All the time.
3. Check the boxes Cookies and site data + Cache images and files.
4. Press Clear Data.

For MIUI Browser:

1. Launch your browser, go to Settings → Privacy.
2. Select Clear Personal Data and mark Cash.

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Once the browser cache is cleared, the pages will load more slowly for the first 2-3 days, which is normal, and the system creates a new cache for frequently visited sites.

Method 4: Hidden cleaning through the engineering menu (for the experienced)

This method removes the system cache that is not visible in the standard settings, and is only suitable for Redmi 9A with the bootloader unlocked or the developer mode enabled.

Instructions:

1. Activate Developer Mode: Settings → About Phone → MIUI version (shap 7 times).
2. Back to Settings → Additionally. → For developers.
3. Enable USB Debugging and Allow location simulation.
4. Install the MTK Engineering Mode app from the Play Market.
5. Run it, go to MTK Settings → Storage → Wipe eMMC.
6. Select Wipe Cache Partition and confirm the action.

⚠️ Warning: Do not use the Wipe All option in the engineering menu - this will lead to a complete reset of the phone! 2-5 minute).

After the restart, the phone will work faster, and free memory will be 500 MB-1 GB more.

Method 5: Automatically clean the cache with Security App

Xiaomi has built a security utility into Redmi 9A that can automatically clean the cache on schedule.

1. Open the Security app (the shield icon).
2. Go to the Cleanup tab.
3. Tap it on. ⚙ → Autocleaning.
4. Enable the option and set a schedule (we recommend once a week).

Advantages of this method:

• 🔄 It works in the background without your involvement.
• 📊 Deletes only secure temporary files.
• 🛡️ Does not affect the data of applications and accounts.

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Autocleaning through the Security App is the most reliable way for beginners to do this, and it doesn’t delete critical files and works even when the phone is locked.

What if after cleaning the cache, the phone began to lag?

In rare cases (especially after cleaning through an engineering menu), the Redmi 9A may start to brake or overheat.

If the problems have not gone away after 24 hours, do a soft reset:

1. Turn off the phone.
2. Press the Power button + Volume up for 10 seconds.
3. In the recovery menu, select Wipe cache partition (use volume buttons for navigation).
4. Confirm the action and restart the phone.

FAQ: Frequent questions about cleaning up cache on Redmi 9A