Xiaomi's smartphone suddenly started giving a "Memory is full" notification and photos stopped being saved? Apps are dyeing and the system is slowing down even though you haven't installed anything new? This problem is familiar to most users of devices with limited internal storage (16-64 GB), the fault is not only your files, but also system debris, app cache and duplicate media files that quietly occupy gigabytes of space.
In this article, we will analyze 7 effective ways to clean memory on Xiaomi, Redmi and smartphones. POCO β From basic (deleting unnecessary files) to radical (reset to factory settings), you will learn how to find and remove hidden memory eaters, which applications are safe to transfer to. SD-The map, and why the standard "cleaner" in MIUI It doesn't always do the job, and it also helps you get back up to 10 to 15 GB of free space without losing important data, using built-in tools and third-party utilities.
1. Diagnostics: What exactly is taking up memory on Xiaomi?
Before you clean the storage, you need to understand which files are clogging up the memory. MIUI has a built-in analyzer, but it doesn't always show the full picture.
- Open Settings β About Phone β Memory (or Settings β Storage in newer versions of MIUI) Here you will see a diagram of the memory distribution by category: Applications, Media Files, Cash, System Data.
- Click on a category (like Apps) to see a list of the most voracious programs, often to blame messengers (Telegram, WhatsApp), social networks (TikTok, Instagram) and games.
- For detailed analysis, use third-party utilities such as Files by Google or SD Maid, which will show hidden files, duplicates and debris that are not visible in the standard menu.
Note the System Data section, which takes up more than 5-7 GB, which is a sign of cache or residues from old updates. These files cannot be manually deleted, and special actions will be required (see section 4).
2. Delete cache and unnecessary application files
App cache is a temporary file that speeds up programs but eventually turns into digital garbage, such as Instagram can accumulate up to 1-2 GB of cache in a few months, and Google Play Services can accumulate up to 500 MB.
Method 1: Clearing the cache for individual applications
- Go to Settings β Applications β Application Management.
- Select an app (like YouTube) and click on βStorageβ.
- Tap "Clear Cache." Don't click "Clear Data" - it will delete all settings and accounts!
Method 2: Mass cleaning of the cache
To quickly clean the cache of all applications:
- Open Settings β Storage β Cache data.
- Confirm deletion. This operation is secure and does not affect personal data.
After clearing the cache, some apps can take longer to load when they first start up β thatβs OK. If the memory is back up in a couple of days, check the apps for automatic downloads (for example, messengers can save all media files from chats).
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To prevent WhatsApp from clogging memory, open Settings β Storage β Storage Management and tick off unnecessary chats for cleaning.
3. Transfer of applications to SD-card (if supported)
Many Xiaomi smartphones (especially the low-end Redmi and POCO models) support microSD memory expansion, but you can't migrate all apps -- just those that do. Here's how to do it:
- Put it in. SD-map (preferably class) A1 or A2 speed).
- Go to Settings β Applications β Application Management.
- Select an app (like Spotify) and click on Storage.
- If the option is available, tap "Change" and select SD-map.
Please note that:
- π± Not all apps support portability (especially system and secure games).
- π After the transfer, the application may run slower if SD-map.
- β οΈ Do not remove the memory card without first βmonitoringβ in the settings β this can damage the data.
Alternative: Use it SD-This will allow you to install applications directly to the map, but once formatted, it will not be used on other devices.
How to format SD-map as an internal memory?
4. Removal of system debris and update residues
MIUI accumulates update residues, log files and other service data over time that are not visible to the user but take up to 3-5 GB of memory, which can be cleaned using a hidden function or third-party utilities.
Method 1: Integrated Cleaner (MIUI Cleaner)
Launch the Security app (shield icon) and go to the Cleanup tab. Here:
- π§Ή Click Deep Clean β This Will Delete Unnecessary Update Files and Temporary Data.
- ποΈ In the βJunkβ section, mark all items and confirm the cleanup.
- π In Big Files, check and delete unnecessary videos or archives.
Method 2: Manually remove service packs
If your memory has decreased dramatically after the MIUI update, remove the old service packs:
- Open the file manager (Files or Explorer).
- Go to /storage/emulated/0/Download/rom or /storage/emulated/0/MIUI/backup.
- Delete files with the.zip extension (these are firmware archives).
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Do not delete the MIUI folder completely, as this may disrupt the system.
Method 3: Use of ADB (for advanced)
If the System Data section is more than 5GB and standard methods are not helpful, you can use the ADB (Android Debug Bridge) which requires a PC connection:
adb shell pm trim-caches 256MThis command will force the cache of all applications to be cleared. To remove unnecessary service packs, use:
adb shell rm -rf /data/app-lib/*β οΈ Attention: Misuse of the right ADB You can only follow commands if you're confident in your actions.
5. Optimization of media files: photos, videos and music
Media files are the main memory eater, and one 4K video can weigh 500MB, and RAW photos can weigh 20 to 30MB each, and here's how to reduce their volume:
Photos
- πΈ In the camera settings (Xiaomi Camera), select 12 MP resolution instead of 48 MP (if you do not need professional shots).
- ποΈ Enable βStorage Optimizationβ in Google Photos β it will compress photos without any visible loss of quality.
- π Remove duplicates with Files by Google or CCleaner.
Video
- π₯ Take a video in 1080p instead 4K, Unless you are planning a professional installation.
- βοΈ Cut the unnecessary fragments right in the gallery (Xiaomi Gallery has a built-in editor).
- π€ Transfer your video to the cloud (Google Drive, Yandex Disk) or external drive.
Music and downloads
Check Download folder β often forgotten archives are accumulated there, APK-files and documents:
- π΅ Use streaming (Spotify, YouTube Music) instead of storing tracks locally.
- πΎ If you download music, choose a bitrate of 192 kbit / s instead of 320 kbit / s.
| File type | Average size | How to cut down |
|---|---|---|
| Photo in RAW | 20-30 MB | Switch to JPEG in the camera settings |
| Video: 4K 60fps | 500 MB/min | Shoot in 1080p 30fps |
| Cash Telegram. | 1-3 GB | Clean up the Settings β Data and memory |
| APK-file | 50β200 MB | Remove after installation |
6. factory reset: when nothing helps
If memory is full of undeleteable system files and standard methods don't work, the radical way to do this is to reset to factory settings, which will delete all the contents of the phone, including:
- π± Installed applications and their data.
- π Personal files (photos, videos, documents).
- βοΈ System settings and accounts.
Before discharge, it is mandatory:
Backup in Mi Cloud or Google Drive|Keep your contacts on SIM-map or Google account|Transfer the photos to a PC or external drive|Write down logins/passwords from important services-->
To perform the discharge:
- Open Settings β About the phone β Reset settings.
- Select βErase all dataβ.
- Enter your password (if installed) and confirm.
β οΈ Note: Some Xiaomi models may require re-assigning your Mi Account to unlock after reset.Make sure you remember your username and password!
Once reset, the phone will be like new, with clean memory.Install only the necessary apps and clean the cache regularly to avoid refilling.
7.Prevention: How to prevent memory filling
To prevent the memory problem from returning, follow these rules:
- π« Disable autoload media in instant messengers (WhatsApp, Telegram).
To automatically control memory, install Files by Google and enable notifications about unnecessary files. The app will offer a cleanup when memory starts to run out.
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Set up a cache limit for individual apps. For example, on YouTube, open Settings β General β Restricting mobile traffic and enable βLimit mobile data usageβ to reduce the amount of video cached.