Modern mobile operating systems, despite their functionality, often limit user actions for security purposes. Receiving root access opens access to system files, allowing you to remove pre-installed software, change the kernel and fine-tune the operation of the hardware. This is the path for those who want to get the most out of their device, going beyond standard capabilities.
However, the process is not without risks: inept intervention can lead to loss of warranty or turn the smartphone into a “brick.” Before starting any manipulations, you must be clearly aware of your responsibility and have up-to-date drivers on hand, as well as a backup copy of important data. We will look at proven methods and tools that are relevant for current versions of Android.
The concept of root access and Android security architecture
The operating system is based on the Linux kernel, where there is a user rootwith absolute rights. By default, Android blocks access to this account, isolating applications from each other and from system files. This sandbox prevents malware, but interferes with enthusiasts.
The process of gaining superuser rights is often called “rooting.” Technically, this means unlocking the bootloader and modifying the partition boot or installing a patch in system. Modern methods, such as using Magisk, allow you to do this in a system-incoherent way, hiding the fact of modification from banking applications.
⚠️ Attention: Unlocking the bootloader on most Samsung, Xiaomi and Huawei devices leads to irreversible activation of the fuse counter, which physically changes the state of the security chip and marks the device as permanently modified.
It is important to distinguish between old methods of obtaining root access through vulnerabilities and modern ones based on official unlocking. The first method is unpredictable and often contains backdoors, the second is transparent, but requires resetting data. Choosing the right path depends on the model of your gadget and the firmware version.
Preparation of the device and necessary tools
The foundation of a successful modification is careful preparation. Chaotic actions without backup can lead to the loss of photos and contacts. The first step is to activate developer mode in the device settings, hidden by default.
To activate, you need to find the build number in the “About phone” section and click on it 7 times. After the activation message appears, a new item will appear in the settings menu. There you should enable USB debugging and, if available, OEM unlocking.
☑️ Checklist before rooting
You will need a computer with the kit installed Platform Tools (ADB and Fastboot). Without this set of utilities, interaction with the bootloader is impossible. Also make sure that you are using a high-quality cable that can transfer data, and not just charging current.
Pay special attention to finding files specifically for your model. Firmware from Xiaomi Redmi Note 10 is not suitable for Redmi Note 10 Pro, despite the similarity of names. An error in choosing a file can lead to a cyclic reboot or a non-working communication module.
Unlocking the bootloader
A key step, without which the introduction of superuser rights on modern devices is impossible. The bootloader is a app that runs in front of the OS and verifies the digital signatures of system partitions. The manufacturer blocks it to prevent the installation of unverified software.
The unlocking procedure differs for different brands. Google Pixel and OnePlus devices allow you to do this by command via Fastboot, while Xiaomi requires a wait of 168 hours after applying through a special application. Some carrier versions of phones in the USA cannot be unlocked at all.
| Manufacturer | Unlocking method | Data reset | Risks |
|---|---|---|---|
| Google Pixel | Fastboot command | Yes | Minimum |
| Xiaomi / POCO | Mi Unlock Tool | Yes | Waiting 7 days |
| Samsung | Download Mode | Yes | Knox blocking |
| OnePlus | Fastboot command | Yes | Average |
After unlocking, the device will be completely cleaned. This is a security measure designed to prevent the new owner from stealing data if the phone is stolen and unlocked. Therefore (backup) is a mandatory step before starting work.
What is OEM Unlock in the settings?
This option allows the execution of the bootloader unlock command. If it is not in the menu, it means that your telecom operator or manufacturer has blocked this feature at the firmware level, and it is almost impossible to bypass this programmatically.
Installing custom recovery (TWRP)
The standard recovery menu (Stock Recovery) does little: reset settings and update from a signed source. To implement root, you need TWRP (Team Win Recovery Project) or its analogues. This is a full-fledged mini-OS that allows you to mount partitions, make backups and install zip archives.
The installation process usually occurs via Fastboot. After connecting the phone in bootloader mode, the command to flash the image is entered into the console. It is important not to allow this process to be interrupted, since damage to the recovery partition will make it impossible to enter recovery mode.
fastboot flash recovery twrp-3.x.x-x-device.img
fastboot boot twrp-3.x.x-x-device.img
Immediately after flashing the firmware, you often need to boot into recovery mode, preventing the system from starting on its own, otherwise the stock recovery will overwrite the custom one. On some devices, this requires holding down the combination of the volume and power buttons immediately after turning off the screen.
Inside TWRP, the interface is touch-sensitive and intuitive. It is recommended to immediately make a full backup of all Data, System and Boot partitions to an external SD card or computer. This is a “point of return” that will save the device in the event of a critical failure.
Magisk integration for obtaining Root access
Today Magisk is the de facto standard for root access. Unlike old methods (SuperSU), it works in systemless mode, that is, it does not physically change the system partition, but loads modifications at boot. This allows you to pass security checks (SafetyNet/Play Integrity).
To install, you need to download the Magisk APK file. If you have a full firmware image (boot.img), you need to patch it through the app on your phone. If there is no firmware, you can try installing the zip archive directly through TWRP, although the method with an image patch is more reliable.
⚠️ Attention: After receiving root access, many banking applications will stop working. To launch them, you will need to use the “Configure Zygisk” function built into Magisk and the exclusion list (DenyList), hiding the fact of rooting.
After successful installation and reboot, the Magisk icon will appear in the application manager. When you first launch the application, you may be asked to complete the installation - agree. You now have superuser access, which can be controlled via a built-in switch.
Use Magisk modules to install system fonts, change sounds, and block ads system-wide, not just in the browser.
Common errors and system recovery
Even experienced users face problems. The most common is bootloop (cyclic reboot). The device turns on, shows the logo and goes off again. This happens when there is a module conflict or an error in the boot image patch.
To get out of the situation, you need to go to TWRP and remove the problematic modules or restore the backup made earlier. If TWRP does not boot, you will have to use Download Mode (Samsung) or Fastboot (others) to return to stock firmware.
Another problem is loss of IMEI or non-working Wi-Fi. This happens when the EFS or Persist partition is damaged. You can restore these partitions only from a backup made BEFORE any manipulations, or by taking a dump from exactly the same device.
If the phone stops responding to commands, try changing the USB port, cable or driver version. Often the problem lies not in the software, but in poor contact or incompatibility of the ADB version with the Android version on the device.
Having a fresh TWRP backup before installing any modules is the only guaranteed way to quickly restore the device to functionality in case of a failure.
FAQ: Frequently asked questions
Does rooting reset the device warranty?
Formally, yes, obtaining superuser rights violates the terms of use of the software. However, if you unlock the bootloader officially (like Pixel or OnePlus), a physical trace remains. Samsung devices trigger Knox, which permanently voids the warranty on some features. It is possible to hide the fact of root programmatically, but traces may remain in the logs.
Is it possible to get root without unlocking the bootloader?
On modern Android (version 8.0 and higher) this is almost impossible without using vulnerabilities (exploits). Exploits are unstable, dangerous and are closed by manufacturers in security updates. The official and safe way always requires unlocking BL.
Is it safe to use banking applications with root?
Root itself is not dangerous, losing control over it is dangerous. Using Magisk and properly configuring Zygisk/DenyList, you can hide permissions from banking applications. However, this is a game of cat and mouse: banks are constantly updating detection methods, and Magisk developers are constantly updating bypass methods.
How to completely remove root access?
The cleanest way is to open the Magisk application, click the “Remove Magisk” button and select “Full removal”. The device will reboot and the rights will be removed. If the system does not boot, flashing the stock boot.img image or a full reset via Fastboot will help.