Owners of budget smartphones such as Xiaomi Redmi 7A often face a lack of internal memory and intrusive pre-installed software. The Android-based MIUI operating system comes with a huge number of built-in services that the user does not always need.
However, there are proven methods to get rid of excess “garbage” without the need to obtain superuser rights (Root).Using USB debugging and the ADB tool (Android Debug Bridge) gives full control of the Android batch system. In this article, we will discuss in detail how to safely clean the Redmi 7A of unnecessary components, while maintaining the stability of the device.
Before you start taking action, you need to understand the risks. Deleting critical system files can lead to a cyclical restart of the phone or complete failure of the interface. Therefore, backing up important data and following the instructions clearly are prerequisites for successful optimization of your gadget.
Redmi 7A Prepares to Delete System Files
The first step is to activate the hidden developer menu. On Xiaomi smartphones, this process has its own peculiarities and requires a Mi Account. Without this step, the computer will not be able to access the smartphone file system to make changes.
Go to Settings → About Phone and quickly tap 7 times on the MIUI Version until the developer mode activation notification appears. After that, a new section will appear in the additional settings menu where you need to enable debugging over USB. You will also need to link the device to your Mi Account, which can take up to 7 days to fully unlock the functionality, but for basic debugging, it is often enough to simply turn on the switch.
⚠️ Note: When you include debugging on USB You'll see a risk warning on the screen. Confirm the action, but remember that your phone is now open to control from any connected PC.
To work, you will need a computer running Windows, macOS or Linux, as well as a high-quality computer. USB-Cheap cables often only run in charging mode and don't transmit data, which will cause a connection error. ADB Fastboot is installed correctly on your computer.
☑️ Preparedness for procedure
Installation and configuration of ADB on the computer
Google’s Platform Tools is the official toolkit for interacting with Android, which should be downloaded exclusively from the official developer’s website to avoid malicious code. Once you download the archive, unpack it into the root folder of the disk, such as C:\adb, so that the path does not contain Cyrillic and spaces.
To run the command line in the file folder, right-click on the empty mouse button, holding the Shift key, and select "Open the command window here" or "Open in the Terminal." Enter the adb device command. If a message appears on the smartphone screen about debugging permission from this computer, check "Always Allow" and click "OK."
The list of devices should show the serial number of your Redmi. 7A If you see unauthorized instead, check the phone screen and confirm the connection. If the device doesn't show up at all, try replacing it. USB-cable or reinstall drivers manually through Windows Device Manager.
What to do if your computer can’t see your phone?
Application Package Analysis: What Can Be Deleted
The most important step is to determine the list of applications to be removed. System processes in Android have unique packet names that begin with the com prefix. Inexperienced users have a hard time distinguishing an important system component from advertising junk, so use specialized lists or databases.
To get a complete list of all installed packages, enter in the command line:
adb shell pm list packagesThe team will draw a huge list that is difficult to analyze manually, recommending using Universal Android Debloater or similar graphical shells that highlight safe-to-remove packages. If you're manually working through the console, look for packages with the names miui, miui.system or third-party service names that you haven't installed.
| Package name | Description | Status of removal |
|---|---|---|
| com.miui.analytics | Collection of usage statistics (Mi Analytics) | Safe. |
| com.android.bsp | Base station system services | Critical (Do not touch) |
| com.facebook.katana | Facebook app (often preinstalled) | Safe. |
| com.miui.misystem | System components of MIUI | Dangerous. |
Removal process through the command line
Once you have decided on the specific package you want to delete, use the uninstall command. It is important to understand that we do not delete the file physically, but delete it for the current user (user 0), which allows you to save the ability to restore the system without flashing.
The syntax of the team is as follows:
adb shell pm uninstall -k --user 0 name.packetFor example, to remove Xiaomi analytics, type: adb shell pm uninstall -k --user 0 com.miui.analytics. Once successful, you will receive a Success message. The application will disappear from the menu and stop consuming resources. Repeat the procedure for all unnecessary components, carefully checking the packet name before entering.
If the system issues a Failure error [not installed for 0], So the application is already removed or missing from the device. [DELETE_FAILED_INTERNAL_ERROR] This may indicate that you are trying to remove a critical component that the system is blocking even with the right to use. ADB.
⚠️ Warning: Never delete packets associated with com.android.phone, com.android.providers.contacts or com.miui.securitycenter unless you are 100% sure of their purpose.This may result in loss of communication or inability to make calls.
Recovery of Remote System Components
If Redmi 7A starts to work incorrectly after removing any component, or you accidentally delete the extra one, you can return the system to its original state. Since the files are physically left on the disk, it is enough to reinstal the package for the user.
Use the command:
adb shell cmd package install-existing name.packetAn alternative method that works on older versions of Android is as follows:
adb shell pm install-existing name.packetOnce the command is completed, the app will return to the menu and start working as if nothing had happened. If the phone stopped loading (bootloop), only a full reset (Hard Reset) through the Recovery menu, which is called by pressing the volume and power button when the phone is turned off.
Alternative methods and graphical shells
For those who don’t want to work with the command line, there are graphical interfaces that work on top of ADB. One of the most popular is Xiaomi ADB/Fastboot Tools. This program automatically identifies the connected phone and offers a list of apps with removal security notes.
Another powerful tool is Universal Android Debloater, which is cross-platform, open source, and contains databases for hundreds of models, including the Redmi 7A. The program itself tells you which packets can be removed and which ones are best left.
- 🚀 Advantages GUI: Process visualization, lower risk of input error, presence of profiles for different models.
- ⚙️ Flexibility: The ability to create your own removal lists for mass device processing.
- 🛡️ Security: Most programs have an Undo feature that allows you to instantly roll back the latest changes.
Using graphical gates greatly speeds up the process and lowers the entry threshold for beginners. However, even with automatic tools, always read the action descriptions carefully before clicking the Delete button.