Obtaining root access (superuser rights) on the device under control of the operating system Android opens up unlimited possibilities for customization and deep optimization for the gadget owner. This is not just a way to remove pre-installed software that cannot be erased using standard methods, but also the key to installing specialized modules, changing the system kernel and complete control over the file structure. However, the path to obtaining privileges is fraught with serious technical risks, including the possibility of turning the smartphone into a “brick” or irreversible loss of user data.
In the modern mobile security ecosystem, the rooting process has become much more difficult due to the introduction of protection mechanisms such as Verified Boot and data encryption by default. Manufacturers actively counter attempts at unauthorized intervention by blocking bootloaders and voiding warranties at the slightest sign of modification of the system partition. However, the developer community is constantly finding workarounds, creating tools like Magiskthat allow you to gain access rights while still being able to pass security checks in banking applications.
Before you can take practical steps, you need to be clear about the consequences of your decisions. Obtaining root access is an irreversible process for many aspects of the device's operation, especially in terms of warranty service. Resetting the Knox counter on Samsung devices is a physically irreversible process, which permanently disables the operation of protected folders and some payment services, regardless of further actions user. Next we will analyze in detail the architecture of the process, the necessary tools and step-by-step algorithm of actions for various scenarios.
Device preparation and risk assessment
The first and most critical step is to create a complete backup of all important data. The bootloader unlocking procedure, which is a prerequisite for most modern rooting methods, initiates a full factory reset of the device. This means that all photos, contacts, messages and installed applications will be permanently deleted from the internal memory.
You will need to not only copy the files to your computer, but also export two-factor authentication settings, access keys and authorization data in various services. After returning the system to its original state, many applications will require re-configuration, and some may refuse to work on the modified firmware without additional manipulations.
You also need to make sure that the battery charge level is sufficient. The process of flashing or introducing superuser rights requires stable power, since interrupting writing to system partitions can disrupt the structure of the file system. It is recommended to have a charge of at least 70-80% and keep the device connected to a power source during all critical operations.
- 🔋 Charge your smartphone to at least 80% and prepare the original USB cable for a stable connection with the PC.
- 💾 Make a complete backup of your data to an external drive or cloud storage without relying only on account synchronization.
- 🔓 Find out your processor model and bootloader version, since the methods for Snapdragon and MediaTek may be radically different.
- 🛡️ Disable the “Find My Device” function and remove your Google account from your phone settings before starting the procedures unlocking.
⚠️ Attention: Unlocking the bootloader on devices from some manufacturers (for example, Verizon in the USA or certain Huawei models) may be technically impossible without the use of paid services or hardware programmers, which significantly increases the risk of failure.
Unlocking the bootloader
The bootloader is a low-level app that initializes the hardware and starts the operating system. By default, it is blocked by the manufacturer to prevent unsigned code from running. To obtain root access, it must be unlocked, which will make it possible to install custom_recovery_ and modified system images.
The procedure varies depending on the brand. For devices Xiaomi requires the official Mi Unlock Tool and a wait of 7 to 168 hours after linking the account. Owners of Google Pixel and OnePlus can unlock much faster using commands through the debugging interface, while Samsung requires switching a special flag in boot mode.
After activating developer mode and enabling USB debugging, connect the smartphone to the computer. You will need to enter the device into Fastboot or Download Mode by holding down a specific combination of physical buttons while turning it on. Next, a special command is sent that removes the signature lock.
fastboot flashing unlock
Or for devices based on MediaTek processors, you may need to use specialized software such as SP Flash Tool, although this is a more risky method that requires precise selection of scatter files. An error at this stage may cause the phone to stop responding to commands and require the intervention of a service center.
On Samsung devices, unlocking the bootloader often requires confirmation on the screen of the phone itself (pressing a combination of volume buttons), and also automatically turns on the Knox counter, which cannot be reset programmatically.
Installing custom Recovery (TWRP)
The standard Android recovery menu has limited functionality and does not allow you to install unsigned zip archives or access system files. Therefore, the next step is to install a custom recovery, the most popular and functional of which is TWRP (Team Win Recovery Project).
You need to find the exact version of the image .imgdesigned specifically for your device model and board revision. Using an image from another model, even if they have the same name, will most likely result in the touch screen not working in recovery mode or the device being “bricked.”
Firmware is carried out via Fastboot mode using the command flash. After successful recording, it is important to prevent an automatic reboot into the system, since the stock firmware can overwrite the custom recovery at the first start. Instead, you need to immediately boot into recovery mode by holding down the volume and power buttons.
| Manufacturer | Unlock command | Features |
|---|---|---|
| Google Pixel | fastboot flashing unlock |
Erases all data, requires confirmation on the screen. |
| Xiaomi / Redmi | Mi Unlock Tool (GUI) | Binding required account and wait up to 7 days. |
| Samsung | Download mode + buttons | The Knox trigger is triggered, the warranty is lost. |
| OnePlus | fastboot oem unlock |
Fast procedure, data is erased instantly. |
In the TWRP environment, you get access to the file system, the ability to create full images of partitions (Nandroid backup) and installation of modifications. The interface is completely touch-sensitive and intuitive, which greatly simplifies the process of managing the system compared to the stock menu.
What to do if TWRP does not start?
If after flashing the phone boots into stock recovery, try renaming the TWRP image file to recovery.img and flashing it again, or use the fastboot boot twrp.img command to temporary download without writing to memory, and then flash it from the inside.
Installation of rights manager (Magisk)
At the present stage of development of the Android ecosystem, the classic method of obtaining root access through archives SuperSU is considered outdated and incompatible with new versions of the OS. The de facto standard has become Magisk (or its fork Kitsune Mask), which implements the “systemless” root system.
The essence of the method is that superuser rights are embedded in the boot image (boot.img), without actually changing the system partition. This allows you to pass system integrity checks (SafetyNet or Play Integrity API), which is critical for the operation of banking applications, Google Pay and streaming services.
To install, you will need to extract the file boot.img from the official firmware for your model. This file is then prepared