How to Clean Memory on Xiaomi Redmi 9A: From Cache to Hidden MIUI Settings

Xiaomi Redmi 9A is one of the most popular budget smartphones with 32 GB of internal memory, but even this amount is not long enough. Photos in messengers, app updates, game cache and system debris eat precious megabytes, and the phone begins to slow down. In this article, 7 proven ways to clean up memory, including hidden MIUI functions that work on the Redmi 9A (models M2006C3LG and M2006C3MII).

We will not only discuss standard methods (cache deletion, file transfer to memory card), but also specific techniques for MIUI 12/13, which are rarely mentioned in the general guides, such as how to clear memory without losing data or why even after deleting files, space is not vacated. All instructions are tested on current versions of firmware (up to MIUI 14 inclusive).

Important: The Redmi 9A has just 2GB of RAM and a 5.1 eMMC drive that slows down over time when over 80% is filled, so cleaning up memory here is critical not only to free up space, but also to prevent lag.

1.Analysing busy memory: what exactly eats up space on the Redmi 9A

Before you clean it, you need to figure out which files take up the most space. MIUI has an inbuilt analyzer, but it hides some of the data. Here's how to get the whole picture:

1. Open the settings → About the phone → Memory.
2. Click on the graph at the top – the detailed description will open by categories: Applications, Images, Videos, Audio, Documents, System Data.
3. Tap on any category (e.g., "Annexes") → Sort by size by clicking on ↓↑ top-right.

Redmi 9A often shows that up to 30% of memory is cacheed by messengers (Telegram, WhatsApp) and social networks, even if you do not use them actively.

⚠️ Note: If more than 3 GB is occupied in the "System Data" section, this is a sign of clogging logs or malfunctioning MIUI. In this case, only resetting to factory settings will help (see Section 7).

2.Cleaning App Cache: Why the Standard Way Doesn't Work

Many people advise cleaning the cache through Settings → Apps → [Select App] → Memory → Clear the cache. But on Redmi 9A, this method releases no more than 100-300 MB, because:

• 📱 MIUI Automatically restores the cache of system applications (Mi Video, Music, Browser).
• 🎮 Games (such as Call of Duty Mobile) store cache in secure folders (/Android/obb).
• 🤖 Some apps (such as Facebook) cache data to the /data/data/com.facebook.katana/cache, rootless.

To clear the cache completely, do the following:

1. Install File Manager+ (give access to memory).
2. Go to /storage/emulated/0/Android/data – this is where app cached data is stored (e.g. downloaded maps in Google Maps or levels in games).
3. Delete the app folders you haven’t used in a long time (e.g. com.tencent.ig for PUBG Mobile).
4. To clear the system cache, enter the dialer code: ##4636## → Storage → Clear Cache.

Remove folders to /Android/data for unnecessary applications |

Clear the cache via the engineering menu (#4636###)|

Delete temporary files to /data/local/tmp (root required)|

Disable Auto-Update Apps in Play Market-->

Once a week |

Once a month |

Only when memory ends|

Never cleaned.-->

Important: After manually clearing the cache, some apps (like Instagram or TikTok) will take longer to load when you first run – that’s fine.

3. Transfer of files to SD-map: circumventing restrictions MIUI

The Redmi 9A supports memory cards up to 512GB, but MIUI by default blocks most applications from migrating to SD. However, photos, videos and documents can be moved without restrictions.

1. Put it in. SD-map (class recommended) UHS-I or A1 speed).
2. Open the files. → Select a category (e.g., "Images") → press ⋮ → Move it.
3. Select files and select them. SD-map.

For the transfer of applications (if supported):

1. Go to Settings. → Annexes → [Select the application] → Memory. → Change. → SD-map.
2. Confirm the transfer. Not all apps support this feature (e.g. WhatsApp or Banking apps cannot be moved).

⚠️ Note: If, after transferring the application to SD It starts to fly out -- put it back in internal memory, which means that the app isn't optimized for slow cards (especially for gaming).

To automatically save new photos/videos on SD:

• 📸 Open the camera. → ⚙ Settings → Preservation site → SD-map.
• 🎥 In Google Photos, disable Automatic Backup if it duplicates files to the cloud.

4. System garbage removal: hidden folders and MIUI logs

MIUI creates a lot of temporary files that are not visible in standard Explorer. On Redmi 9A, they can take up to 1-2 GB.

To delete these files without rooting:

1. Connect your phone to your PC via USB (in File Transfer mode).
2. Use ADB (install Platform Tools): adb shell su rm -rf /data/local/tmp/* rm -rf /data/log/*
3. To clear the cache of all user applications: pm clear --user 0 com.miui.home

💡

If you don’t have a PC, use the SD Maid app (root required) or Files by Google to clean up your garbage without ADB.

After cleaning, reboot your phone. If the space doesn't vacate, check the folder. /storage/emulated/0/MIUI/debug_log, where MIUI Stores debugging logs (can be manually deleted).

5. MIUI Optimization: Disabling Unnecessary Functions

The MIUI on Redmi 9A, by default, includes a lot of background processes that eat up memory and charge.

• 🔍 Search MIUI: Settings → Additionally. → Search → Disable "Show results from the Internet".
• 📊 Analytics: Settings → Confidentiality → Analytics → Disable "Participation in the Improvement Program" MIUI".
• 🎵 Mi Music: Remove or Freeze Through ADB (pm disable-user com.miui.player) as it downloads album covers in the background.
• 📡 Auto Update: Settings → The phone. → Updating the system → ⚙ → Deactivate "Automatic loading".

Also disable auto-run of unnecessary applications:

1. Go to Settings → Applications → Application Management → Autorun.
2. Turn off autoplay for Facebook, AliExpress, Mi Video and other rarely used apps.

💡

Disabling the autorun of applications not only frees up memory, but also increases battery life by 10-15% (Redmi 9A tests with MIUI 13).

For advanced users: Turn off MIUI animation to speed up the interface:

1. Enable Developer Mode (7 taps according to the MIUI version in About Phone).
2. Go to Settings → More → For developers and install: Window animation: 0.5x Transition animation: 0.5x Animator Duration: 0.5x

6.Reset to factory settings: when it's the only way out

If you've had all the manipulations, and the memory is still clogged and the phone is slowing down, it's time for a hard reset. On Redmi 9A, you can do this in two ways:

Method 1: Through settings (saves files to the SD-map)

1. Back up important data (photos, contacts) to your PC or cloud.
2. Go to Settings → About Phone → Resetting → Erase all data.
3. Enter your password (if installed) and confirm.

Method 2: Recovery (if the phone is not turned on)

1. Turn off the phone.
2. Press Power + Volume up until the Mi logo appears.
3. Select Wipe Data → Wipe All Data (Change Volume Buttons).
4. Confirm the choice and wait for the completion.

⚠️ Attention: After the Redmi reset 9A It can take longer to download the first time (up to 5-10 minutes). Do not interrupt the process! Also check that you have a backup. IMEI (If you have previously changed the firmware, otherwise the network may disappear.

After discharge:

• 📱 Do not restore data from backup MIUI — It can contain garbage.
• 🔄 First, update your firmware to the latest version through Settings. → Updating the system.
• 🚫 Do not install apps that previously took up a lot of space (such as heavy gaming).

7. Alternative methods: from root to cloud storage

If standard methods don’t help, consider these options:

• 🔧 Root access: Allows you to delete system applications (Mi Browser, Mi Pay) and clear protected folders. 9A Magisk + patch MIUI 12/13.
• ☁️ Cloud Storage: Move your photos/video to Google Photos (free to 15GB) or Yandex Drive (10GB). Set up automatic download: Google Photo Settings → Backup and synchronization → On.
• 📱 External drive: Use OTG-USB drive cable (up to 256GB) Redmi 9A supportive USB OTG free-of-setting.
• 🔄 Light firmware: Install custom firmware (e.g. Pixel Experience) that weighs less than the standard firmware MIUI.

Warning: Installing custom firmware is warranty-free and can lead to loss of IMEI or camera issues (on Redmi 9A, the Widevine L1 often breaks, which makes Netflix work in low resolution).

FAQ: Frequent questions about cleaning Redmi memory 9A

If none of these methods worked, check the health of the drive. On Redmi 9A, the eMMC chip often fails (especially when overheating often). For diagnostics, use the AIDA64 app (Storehouse → Health status). If the Reallocated Sector Count is above 10, contact the service.