Cache Cleanup on Xiaomi Redmi 9A: A Complete Guide to Optimizing Memory

Why does the Xiaomi Redmi 9A cache require regular cleaning?

Xiaomi Redmi 9A, despite the budget price category, demonstrates stable operation - but only if the memory is properly maintained. Cache (temporary files of applications and systems) accumulates imperceptibly: after each launch of the messenger, watching a video on YouTube or updating maps in Google Maps. Over time, these files take up gigabytes of memory, which leads to brakes, overheating and even spontaneous reboots.

The Redmi 9A features limited 2/3GB of RAM and 32/64GB of ROM in the base versions. When you fill the cache by 80% or more, the system begins to aggressively close the background processes, which causes notifications to come with a delay, and games slow down. Cleaning the cache manually or using built-in MIUI tools helps to return the smartphone to speed without radical measures like resetting to factory settings.

It is important to distinguish the cache of applications (temporary data for fast downloading content) from junk files (remnants of deleted programs, duplicate photos). The former can be cleaned without risk to the software, the latter require a deeper cleaning. Next, we will analyze all the available methods, from standard MIUI functions to hidden commands for power users.

Method 1: Clearing the cache of individual applications through settings

The safest method is to remove cache for specific programs, which will not affect their work, but will free up from 100 MB to 1-2 GB of memory depending on the application, for example, Telegram or VKontakte cache can weigh several gigabytes due to downloaded media files.

Instructions:

• 📱 Open the Settings. → Annexes → Application management.
• 🔍 In the search box, type the name of the program (for example, Chrome or Instagram).
• 🗑️ Press Warehouse. → Clear cache (not to be confused with Clear Data button – this will delete accounts and settings!).
• 🔄 Repeat for all "heavy" applications (social networks, instant messengers, games).

To speed up the process, use cache size sorting: in the app list, tap three dots in the upper right corner and select Sort by size, so you quickly find the main memory eaters.

💡

If the app is slower after cleaning the cache, don't worry. It's temporary: the data will be reloaded the next time you use it, but without any debris.

Method 2: Automatic Cleaning through Security App

MIUI has a built-in optimization tool called Security, which analyzes the system and suggests removing unnecessary files, including cache, remnants of deleted programs and duplicates, and the advantage of this method is that you don't have to manually review each application.

How to use:

• 🛡️ Launch the Security app (if it isn’t on the desktop, search through search).
• 🧹 Go to the Cleanup tab (or Accelerate in new versions) MIUI).
• 🔍 Wait until the scan is completed (usually takes a lot of time). 10-30 seconds).
• ✅ Tick the Cash Apps and Garbage Files, then click Clear.

Note: Security sometimes suggests removing files from the Download or DCIM folder. Before confirming, check if there are any important documents or photos there - these data are not restored!

Make a backup of contacts and photos

Close all background applications

Connect your phone to charge (if battery level < 30%)

Disconnect the mobile Internet (to avoid interruption of the process)-->

Method 3: Cleaning Dalvik cache (for power users)

Dalvik cache is a system file that is created when you install or update applications. It speeds up the launch of programs, but over time fragments and can take up to 500 MB of extra space. Cleaning the Dalvik cache requires superuser rights (root) or the use of a recover.

If you have TWRP Recovery installed, follow the following steps:

1. 🔧 Turn off the phone, then press the power button. + Volume up to enter the Recovery.
2. 📁 On the menu. TWRP Choose Advanced → Wipe Dalvik Cache.
3. 🔄 Swipe your finger to confirm (the process will take place) 5-10 seconds).
4. 🔙 Restart the device via Reboot → System.

Warning: After cleaning the Dalvik cache, the first turn on of the phone will take 1-2 minutes longer than usual.

Method 4: Using ADB for deep cleaning (without root)

If standard methods don't work and root rights don't, you can use Android Debug Bridge (ADB), which allows you to send commands directly to your phone's system through your computer, and it's a method that can clean the cache of all applications at the same time.

Step-by-step:

1. 💻 Install. ADB-Drivers on PC and enable Debugging by USB on the phone (Settings) → The phone. → Version. MIUI — Tap 7 times, then return to the Additional Settings → For developers).
2. 🔌 Get Redmi on board. 9A To the computer and confirm the trust in the device.
3. 🖥️ Open the command line (Windows) or the terminal (Mac/Linux) platform-tool folder.
4. 📋 Enter the command to clear the cache of all applications: adb shell pm trim-caches 1000000000 (where 1000000000 is the size in bytes, approximately 1 GB).

To clean the cache of a particular application (such as Facebook), use:

adb shell pm clear com.facebook.katana

⚠️ Note: Do not use the adb shell pm clear command for system applications (e.g. com.android.phone).This can cause your phone to crash and require resetting.

Method 5: Resetting cache through Recovery Mode

If the phone is slowing down and not responding to commands, cache resetting via stock recavers will help.This method does not delete user data, but cleans all temporary system files, including the update cache and Dalvik (if available).

Instructions:

• 🔄 Turn off Xiaomi Redmi 9A.
• 🔕 Press the power button. + Loudness up before the logo appears MI.
• 🌐 In the Recavére menu, select the language (if required), then Wipe & Reset. → Wipe Cache.
• ✅ Confirm the action and wait for the completion (takes). 1-3 minute).
• 🔙 Reboot your phone via Reboot → Reboot to System.

This method is useful if:

• 📉 The phone stopped loading after the update.
• 🐢 The system brakes even after manually cleaning the cache.
• 🔄 You need to remove the update cache that blocks the installation of new versions. MIUI.

💡

Resetting cache through the recovery is the only way to return the phone to work if it “hangs” on the logo after a failed update.

Comparison of methods of cleaning cache: which one to choose?

Not all methods are equally effective. Below the table will help you determine which method is suitable for your situation:

For most users, a combination of the first and second methods is enough: If the phone is used intensively (many games, social networks, video shooting), it is recommended to clear the cache every 1-2 weeks. For experienced users with root rights, the optimal method is with Dalvik cache or ADB.

Frequent Mistakes and How to Avoid Them

Clearing the cache seems like a simple procedure, but many users make mistakes that lead to data loss or performance impairment.

⚠️ Warning: Never click Clear Data instead of Clear Cache in the app settings.This will delete all saved passwords, settings, and files inside the program (e.g. downloaded tracks in Spotify or save in games).

Error 1: Cleaning the cache of system applications

Applications like com.android.systemui or com.miui.home are responsible for the MIUI interface, and their cache can be cleaned, but only if the phone is unstable, otherwise it will cause the launcher to crash or the icons from the desktop to disappear.

Mistake 2: Using Play Market Cleaners

Applications like Clean Master or CCleaner often promise “magic” acceleration, but in practice:

• 🚫 Delete useful files (such as Google Maps cache, which makes them load longer).
• 📊 Shows false data about “freed gigabytes” (given the junk files that the system already deletes automatically).
• 🔄 Working in the background, consuming battery and RAM.

Mistake 3: Cleaning the cache too often

Cache is used for fast application operation, if you clean it daily, programs will be loaded longer, and mobile Internet traffic will increase (because the data will have to be downloaded again), the optimal frequency is once every 1-2 weeks or when the brakes appear.

💡

Before cleaning the cache, check how much free memory is left in the Settings → Storage section. If more than 10% of the total volume is free, no cleaning is required.

FAQ: Answers to Frequent Questions