Xiaomi smartphone owners often seek to expand the functionality of their device by obtaining Root rights to install modified firmware or deep configuration of the system. However, after installing custom utilities or obtaining administrator rights through Magisk, users may face the need to return the device to its original state, this may be caused by a desire to sell the gadget, problems with banking applications or the requirement of an official service center before warranty repair.
The process of removing superuser rights on the Redmi Note 9 is not trivial, since the standard settings do not include the “Delete Root” button. To fully return to factory state, you need to perform a series of sequential actions affecting system partitions of memory. Ignoring important steps can lead to device failure or loss of personal data, so it is important to carefully study the algorithm of actions.
There are several ways to deactivate administrator rights, depending on the method they were obtained. If you used a classic SU binary, the process will be different from deleting modules through Magisk Manager. In any case, the first and most important step is to create a full backup of all important data, since during the procedure the information will be irretrievably lost.
⚠️ Note: You do all the modifications to system files at your own risk.The author of the article is not responsible for the possible transformation of your smartphone into a brick».
Why you may need to remove the Root rights
The main reason users decide to remove Root rights on Xiaomi Redmi Note 9 is the inability to use applications with high security requirements. Banking programs such as Sberbank Online or Tinkoff, as well as payment systems like Google Pay (or Wallet), block work on devices with a modified operating system, they scan the environment for signs of hacking and refuse to start if they detect Magisk or other signs of modification.
Another important factor is warranty service. Official service centers Xiaomi when receiving the device for repair, conduct diagnostics of the software. If there is an interference in the system partition or the presence of superuser rights, warranty repair can be refused, arguing that this is a violation of operating conditions, in which case the removal of root rights becomes a prerequisite for restoring the warranty.
Removal of administrator rights is also often required when reselling a smartphone. Buyers rarely want to mess with “stitched” devices for fear of unstable operation or hidden vulnerabilities. Clean stock firmware increases the liquidity of the gadget and the trust in it from the new owner.
Preparation of the smartphone for the procedure of resetting
Before any manipulation of system rights, you need to do thorough preparation, first of all, you need to make a full backup of contacts, photos and documents, you can use Mi Cloud storage, Google services or third-party backup programs, and it is important to understand that the process of returning to a factory state will inevitably lead to full formatting of internal memory.
Make sure that the battery charge of the smartphone is at least 60-70%. Interrupting the firmware or reset process due to battery discharge can damage the bootloader. SD and SIM-card before the procedure to avoid accidental loss of data on external media or driver conflict.
Some removal methods may require a computer. Install ADB and Fastboot drivers on your PC in advance, and download the original firmware for your particular Redmi Note 9 model. The firmware version can be found in the Settings → About Phone menu, and download the file is best from the official Mi Firmware website or proven resources.
☑️ Checklist of preparations for removal of Root
Removal method through Magisk Manager
If the superuser rights were obtained using the popular Magisk tool, the process of removing them is as simple as possible thanks to the built-in functionality of the program, which is considered the most secure and correct method, since it allows you to roll back changes to system files without the need for a complete flashing of the device. You do not need a computer, all actions are performed directly on the smartphone.
Open the Magisk Manager app on your Redmi Note 9. On the home screen, in the middle, you'll see a button that says "Uninstall." Click on it and select "Complete Uninstall" from the menu that appears.
Once confirmed, the automatic cleanup process will begin. The smartphone will reboot and the Root rights will be completely removed. It is important to note that this method only works if you have not made manual changes to system files in other ways and installed custom recoveries that block the boot of the original system.
What if Magisk is not removed?
Resetting through factory settings restoration
In cases where automatic deletion via Magisk is not possible or another method of obtaining rights (for example, SuperSU) is used, a more radical approach will be required. Standard reset via the settings menu is often insufficient, since it does not affect the system partition where the administrator rights are specified.
To enter recovery mode, turn off the smartphone completely. Then press the volume button and the power button at the same time. Hold them until the Mi logo appears, then release the power button, while continuing to hold the volume button. You will be taken to the Mi Recovery menu, where the control is carried out by the volume buttons and the selection by the power button.
In the recovery menu, select Wipe Data and then Wipe All Data. Confirm. This process will delete all user data and settings, but on its own it may not remove Root if the system partition is modified. However, in conjunction with subsequent flashing, this is a mandatory step for cleaning the cache and temporary files.
| Method | The need for a PC | Data retention | Efficiency |
|---|---|---|---|
| Through Magisk | No. | Yeah (backup recommended) | Tall. |
| Wipe Data (Recovery) | No. | No. | Medium |
| Flashing (Fastboot) | Yes. | No. | Maximum |
Complete Fastboot Fastboot Fastboot Fastboot
The most reliable way to guarantee that you will remove the Root rights on the Xiaomi Redmi Note 9 is to completely flash the device with the stock operating system. This method returns the phone to a “out of the box” state, replacing all system partitions with original files, USB-cable and utility Mi Flash Tool.
First, you need to turn your smartphone into Fastboot mode. Turn off the device, then press the power button and the volume button at the same time. When the image of a rabbit in a hat-eared hat appears on the screen, connect the phone to your computer. Make sure that in Windows Device Manager the smartphone is defined as Android Bootloader Interface.
Run the Mi Flash Tool on your computer and select the packet with the unpacked firmware. At the bottom of the window, select Clean all mode. This mode completely erases data and reflashes all partitions, which is guaranteed to remove any traces of Root and custom recovery. Press the Flash button and wait for the process to finish, which can take 10-15 minutes.
⚠️ Note: When using the “Clean all” mode in the Mi Flash Tool, unlocking the bootloader (if it was done earlier) can be saved, but all data will be destroyed. Clean all and lock will block the bootloader back, but only use it if you are sure that the firmware region coincides with the region of the device, otherwise a brick is possible».
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If the Mi Flash Tool is a firmware error, try replacing it. USB-Cable to the original or switch to USB-Port 2.0 (black) instead of 3.0 (blue).
Checking for Root Rights After Resetting
Once you have completed the removal or flashing procedure, you need to make sure that the system is really clean. Simply missing the rights management application icon does not guarantee that there are no traces left in the system.
Install the Root Checker app from Google Play and run the check. If the rights are deleted correctly, the program will give a message that Root access is missing, and it is worth trying to launch a banking application that was previously blocked. Successful logging into your personal account without reporting security errors will be the best confirmation of success.
Also, pay attention to the behavior of the system. The absence of unnecessary edits usually leads to increased stability, increased battery life and proper functioning of Google services. If strange artifacts or errors are observed, it is possible that the system has tails from previous modifications, and the cleaning procedure should be repeated.
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The only way to 100% guarantee the removal of Root and restore the warranty is a complete flashing stock image with the bootloader lock.
Possible problems and ways to solve them
The Redmi Note 9 can be a factory-factory experience, and one of the common problems is the “bootloop” when the phone is constantly restarted and doesn’t turn on until the end, often when the system files needed to run have been deleted or the firmware has been interrupted.
Another common situation is to retain Root rights even after resetting, which occurs if the modifications affect a partition /system that is not cleared with normal Wipe Data, in which case only flashing through Fastboot or using a custom TWRP receiver to format the system partition helps.
You may also lose IMEI or fail communication modules after incorrect removal of rights. If after the procedure lost network or Wi-Fi, you need to reflash the device using the official tool, be sure to choose the option to save the modem data (although in Clean All mode this happens automatically, it is important to use the correct firmware version for your region).