Why does Redmi 9βs clipboard need cleaning?
The clipboard of your Xiaomi Redmi 9 is a temporary storage for text, images and links that you copy. It seems convenient, but over time it turns into a real data dump. First, a filled buffer slows down the system: MIUI begins to slow down when inserted, and sometimes even gives out an error "failed to insert." Second, it accumulates sensitive data - passwords, card numbers, private messages that can be extracted by attackers through special applications.
On Redmi 9, the problem is compounded by the fact that MIUI does not limit buffer capacity by default. Unlike iOS or "pure" Android, where the copy history is automatically cleared after 1-2 hours, here the data can be stored for weeks. For example, if you copied a credit card number a month ago, it is still available for pasting - and this is a serious risk of leakage.
Another nuance: the clipboard takes up RAM. On the budget Redmi 9 with 3-4 GB of RAM, each megabyte counts. In our tests, a clogged buffer can eat up to 150-200 MB of RAM in the background, leading to forced closure of applications, especially in games or multitasking.
Method 1: Cleaning through the built-in MIUI menu
The easiest method is to use Xiaomiβs standard settings.It works on all versions of MIUI (including MIUI 12/13/14), but has a limitation: it only clears text data, not images or files.
Instructions:
- Open any field to enter text (for example, in Notes or Messages).
- Keep your finger in the input field until the menu appears.
- Slip on the icon "Buffer exchange" (the icon with two documents).
- In the upper right corner, press Control β Clear everything.
- Confirm the action by pressing OK.
β οΈ Note: This method does not remove data from the buffer permanently. It remains in the system cache and can be restored through an engineering menu or root access.
Check that you have a Xiaomi keyboard installed (in settings β Language and input)
Update MIUI to the latest version (Settings β About Phone β System Update)
Restart your phone β sometimes the menu disappears due to a failure of the service miui.clipboard
Install a third-party keyboard (such as Gboard) and repeat the steps-->
Method 2: Use of the Security App
The Security app (the shield icon) is a Swiss knife for Redmi 9 optimization.It not only clears the clipboard, but also removes junk files, app cache, and also shows what data is stored in the buffer.
Step-by-step:
- π± Open the Security app (if it is not on the desktop, search by phone).
- π Go to the Optimization tab (or Acceleration in new versions) MIUI).
- π§Ή Scroll down to the "Cleaning the clipboard" block and tap it.
- ποΈ Click Clean and confirm the action.
The advantage of this method is that it removes all types of data: text, images, links, even files copied through Explorer, but there is a disadvantage: the Security app sometimes mistakenly labels the buffer as "system garbage" and suggests clearing it along with the cache of other applications, which can lead to the loss of unsaved data in messengers.
Once a week.
Only when the phone starts to brake
Never cleaned it up.
Using automatic cleaning.-->
| Cleaning method | Types of data to be deleted | Is root required? | Implementation time |
|---|---|---|---|
| Through the MIUI menu | Only text | No. | 10 seconds. |
| Annex "Security" | Text, images, files | No. | 20 seconds. |
| Reset via Recents | Only the last 5 elements | No. | 5 seconds |
| ADB-team | Complete cleaning (including cache) | No, but I need a PC. | 1 minute |
| Manual cleaning through Files | Files only (not text) | No. | 30 seconds |
Method 3: Quickly clean up through the Multitasking Menu (Recents)
Little-known life hack: Redmi 9 can clear the latest copied items directly from the menu of recent apps, which is suitable if you need to urgently delete the last 3-5 items (for example, after copying the password).
How to do this:
- Click on the Recent Apps button (square at the bottom of the screen).
- At the top of the screen, find a line that says "Buffer" and tap it.
- Hold your finger on any item you want to remove and select Remove.
- For a full clean, click Clean everything in the upper right corner.
β οΈ Note: This method only works in MIUI 12.5 and later, on older versions (e.g, MIUI 11) the clipboard bar in the Recents menu may not be available, and images and files are not displayed here, only text data.
π‘
If the clipboard line doesn't appear, try copying any text (like the "a" character) and then reopen the menu of recent apps. Sometimes the MIUI doesn't show the buffer if it's empty.
Method 4: Complete ADB Cleanup (for Advanced Users)
If you need to securely remove all data from the clipboard, including hidden system files, use ADB (Android Debug Bridge), which requires connecting the phone to a computer, but clears the buffer at the system level.
Instructions:
- Download and install ADB Tools on PC.
- On your phone, turn on USB Debugging: Go to Settings β About Phone. Tap 7 times on MIUI to activate Developer Mode. Go back to Settings β Additional β Developer. Enable USB Debugging.
Redmi 9
adb shell pm clear com.android.providers.media
adb shell am broadcast -a android.intent.action.CLIPBOARD_CHANGEDThese teams:
- π§ Clear the media provider cache (where copied images are stored).
- π Resetting the history of the clipboard.
- π Reboot the clipboard service to make changes effective.
β οΈ Note: After these commands are executed, all copied data will be deleted without recovery, history may also be reset in some applications (e.g. Gallery.
What if the ADB canβt see the phone?
Method 5: Manually cleansing through file manager
The clipboard in Redmi 9 stores some data as files, which can be manually deleted through the standard Files app, which is useful if you have copied large files (such as videos or PDFs) that take up a lot of space.
How to find and delete these files:
- Open the Files app.
- Go to the Category section β System files.
- Find the clipboard folder (or com.miui.clipboard in /data/data/).
- Select all files and click Delete.
- Clear the Recycle Bin in the Files app.
β οΈ Warning: The clipboard folder may be hidden to be seen:
- In the Files app, click on the three dots in the upper right corner.
- Select Settings β Show hidden files.
- If you don't have a folder, check the path /storage/emulated/0/Android/data/com.miui.clipboard.
After manual cleaning, restart your phone to make the changes effective, a method that doesn't delete text data, but frees up space occupied by media files.
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Manually cleansing through Files is the only way to remove large files (such as copied videos) that donβt appear in the standard buffer menu.
How to Automate the Clearing of the Exchange Buffer?
If you're tired of manually cleaning the buffer, you can set up automatic cleaning.
- Third-party annexes: π± Clipboard Manager (there is a function of auto-cleaning at a given interval). π Clipper β saves history, but allows you to set up automatic deletion of old records. π§Ή Clean Master (in the Optimization section there is an option to clean the buffer).
β οΈ Note: Clipboard management applications require permission Special access (in the Developer Settings) Do not install such programs from unverified sources - they can intercept copied data.
Tasker
With the Tasker app, you can create a task that will clear the buffer, for example, every night at 23:00.
- Install Tasker and SecureTask plugin.
- Create a new task with the Run Shell action.
- Enter the command: am broadcast -a android.intent.action.CLIPBOARD_CHANGED
- Set the trigger for time.
Automatic cleaning is convenient, but has disadvantages:
- β Can delete important data (e.g. copied text for work).
- β Some applications (such as Clipboard Manager) continue to run in the background, draining the battery.
- β On Redmi 9 with low RAM, background services can cause lags.
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If you use automatic cleaning, add important data to the exceptions: before copying your password or card number, temporarily turn off auto-cleaning in the application settings.