Receiving root access on a device with an operating system Android 9 Pie opens up unlimited possibilities for the user for customization and deep optimization of the gadget. Unlike older versions, where there were universal “one-click” applications, the modern procedure requires a more conscious approach and interaction with a personal computer. This is due to the strengthening of security measures in the system kernel and changes in the architecture of partitions on many modern smartphones.
The rooting process via a PC is considered the most reliable method, as it allows you to control every stage of loading a modified bootloader and implementing superuser rights. However, before starting any manipulations, you must clearly understand the risks: loss of warranty, the possibility of turning the device into a “brick” and potential problems with the operation of banking applications. Starting with Android 9, the standard solution for obtaining root has become the Magisk tool, which uses the system of an unchanged system partition (systemless root).
In this article we will analyze in detail all the stages of preparation, the necessary drivers, methods unlocking the bootloader and directly installing superuser rights using computer utilities. You will learn how to prepare firmware images, work with the command line and what to do if critical errors occur during system modification.
Preparation of the workplace and necessary tools
The success of the operation depends 90% on the quality of the preparation of the environment and software. You will need a stable computer running Windows, Linux or macOS, a working USB cable (preferably an original one that supports data transfer, not just charging) and a fully charged smartphone. Insufficient battery charge at the time of flashing can lead to irreversible damage to the device.
The first step is to install ADB and Fastboot drivers on the computer. These tools allow the PC to communicate with the phone in various boot modes. Download the current version of Platform Tools from the official website of Android developers and unpack the archive to the root of drive C or to a convenient folder, the path to which does not contain Cyrillic characters and spaces.
☑️ Ready for rooting
Next you need to activate the developer mode on the device itself smartphone. To do this, go to Settings → About phone and quickly click 7 times on the item Build number. After a notification appears that you have become a developer, go to the new section System → For developers and turn on the toggle switch USB debugging. It is also recommended to enable the item OEM Unlockingif it is available in the list.
Unlocking the Bootloader
Most smartphone manufacturers block the bootloader to prevent unauthorized modification of the system. Without an unlocked Bootloader installation of a custom recovery or a modified boot image is impossible. The unlocking procedure is unique for each brand and often entails the complete deletion of all user data.
For devices running pure Android or with close to stock firmware (Pixel, Motorola, some Xiaomi models, OnePlus), the process is usually performed through the Fastboot command. Connect the phone in bootloader mode (usually by pressing the volume down button when turning it on) and run the command in the PC terminal:
fastboot flashing unlockA data loss warning will appear on the smartphone screen. Confirm the action with the volume buttons. After rebooting, the device will be cleared and the bootloader status will change to Unlocked. For Samsung devices, the procedure is different and requires obtaining a special unlock code through the manufacturer's official portal, and for Huawei, since 2018, official codes are no longer issued, which requires finding workarounds.
⚠️ Attention: Unlocking the bootloader will void the device warranty in most service centers. In addition, this activates SafetyNet protection, which is why some applications (banks, Netflix, Google Pay) may stop working correctly without additional settings.
Extracting and patching the Boot image via Magisk
The modern method of rooting Android 9 involves using a manager Magisk. Instead of directly writing to the system partition, Magisk patches the image of the boot partition. First, you need to find the exact firmware version that is currently installed on your device. You can download the stock firmware on the manufacturer's official website or on specialized forums.
You need to extract the file boot.img from the firmware archive (sometimes recovery.img, depending on the architecture). Copy this file to the internal memory of your smartphone. Install the Magisk app (APK file) and open it. In the main menu, click the button Install next to Magisk, then select the option Select and patch file.
Specify the previously copied file boot.img. The application will process the image and save the modified version to a folder Download with the name of the view magisk_patched_[random].img. This file must be returned to the computer, since it is the one that will be written to the phone via Fastboot.
Always save the original boot.img in a safe place. If the rooting process fails, you can return the device to its original state by simply writing the original image back via Fastboot.
Flashing the modified image and obtaining root access
Once you have the patched file on your computer, put the smartphone in Fastbootmode. Connect it to your PC and open a command prompt in your ADB tools folder. Make sure that the device is detected by the command fastboot devices. If the list is empty, check the drivers or try another USB port.
To burn the image, use the following command, replacing the file name with the current one:
fastboot flash boot magisk_patched_[file_name].imgIt is important to note that on devices with A/B architecture (seamless updates), the command can differ or require a slot to be specified. In some cases, for Samsung devices, the Odin utility is used instead of Fastboot, and the file is flashed in the APfield. After successful recording, run the command fastboot reboot.
After the first boot, open the Magisk application. If you see the manager version and the “Superuser” button is active, congratulations - rooting was successful. Now you can install modules, remove system junk and get full control over Android 9.
| Process stage | Required tool | Risk of data loss | Complexity |
|---|---|---|---|
| Installing drivers | Platform Tools | No | Low |
| BL Unlock | Fastboot / OEM Code | Yes (100%) | Medium |
| Image patching | Magisk Manager | No | Low |
| Write to memory | Fastboot / Odin | High (if error) | High |
Possible problems and methods for eliminating them
The rooting process does not always go smoothly, especially on devices with custom shells from manufacturers. One of the common problems is “bootlap” (cyclic reboot). If your phone is stuck on the logo, try going into Recovery mode (stock or custom, for example, TWRP) and clearing the cache Wipe Cache/Dalvik.
Another common problem is the system refusing to boot due to integrity check (dm-verity). In such cases, you may need to disable this check through special scripts or install a patch No Verity Opt Encrypt through custom recovery. It is also worth considering that some manufacturers use encryption of the boot partition, which makes it impossible to directly extract and modify the image without additional decryption utilities.
What to do if the phone does not turn on after flashing the firmware?
If the device does not show signs of life or constantly reboots, you must enter Fastboot mode again. Try writing the original (unpatched) boot.img back using the flash command. If this does not help, you will need to completely flash the stock firmware using the manufacturer's special software (MiFlash, Odin, SP Flash Tool).
⚠️ Attention: Menu interfaces and item names may differ depending on the smartphone model and shell version (MIUI, OneUI, ColorOS). Always check the exact combinations of buttons and section names in the documentation for your specific model before starting work.
Setting up the environment after obtaining Root access
After successfully obtaining superuser rights, the system can still detect the presence of modifications. For the full operation of banking applications and Google services, it is necessary to hide the fact of rooting. In the Magisk settings, enable the function Zygisk and activate Enforce DenyList.
In the DenyList, mark all applications that should work in a “clean” environment (banks, games with anti-cheat, Google Pay). It is also recommended to rename the Magisk package in the application settings to hide it from simple checks. This will allow you to maintain the functionality of the device and at the same time take advantage of root access for fine-tuning the system.
Now you can install powerful utilities to control the processor frequency, disable advertising at the system level, or create complete backups of applications with data. However, remember that with great power comes great responsibility: do not remove system applications whose purpose you do not know, so as not to interfere with stability Android 9.
Hidden root via Magisk Hide (or DenyList) is a mandatory step for using modern banking applications on a rooted device. Without this setting, most fintech services will deny access.
Is it safe to root Android 9 in 2026-2026?
The procedure itself is technically safe if you follow the instructions. However, risks are associated with the human factor and software quality. Android 9 no longer receives security updates from Google, which makes the device itself vulnerable, regardless of root. Rooting only adds the risk of breakdown if done incorrectly.
Will the warranty expire after unlocking the bootloader?
In most cases, yes. The unlock flag is written to a protected memory area (eFuse on Samsung, for example), which cannot be reset by software. Service centers can easily determine the fact of interference, even if you return the stock firmware.
Is it possible to update the system over the air (OTA) after rooting?
Standard OTA updates on a rooted device with an unlocked bootloader are usually not installed or lead to the loss of root access. Often a manual update is required by downloading the full firmware image and re-patching the boot image with a new version of Magisk.
What alternatives are there to obtain rights without a PC?
For Android 9 there are practically no working methods left for rooting without a PC (one-click root). Applications like KingRoot or KingoRoot are outdated, do not support new kernels, and often contain malware. Using a PC is the only reliable way.