Mobile Operating Systemsmobile-operating-systems

How to Root Your Android Phone: A Starter’s Guide

how-to-root-your-android-phone-a-starters-guide

Rooting an Android device means gaining privileged control, known as "root access" or "superuser" permissions, over its operating system.

What you need to know before you root your Android phone

Rooting allows you to bypass manufacturer and carrier restrictions, enabling modifications like altering system files, installing custom software (ROMs), removing bloatware, and enhancing customization. Rooting allows overclocking your processor. Rooting allows creating secure tunnels to the Internet. However, the process carries significant risks. Rooting an Android device generally voids its manufacturer's warranty, though in the European Union, rooting may not void the statutory 2-year warranty unless it can be proven that the rooting directly caused a defect. Rooting increases the device's vulnerability to malware and security threats because it bypasses built-in security features and may prevent the reception of official security updates. Many apps, especially banking, payment, and some gaming applications, may detect root access and refuse to function or install on a rooted device. Additionally, rooting can lead to a "bricked" device, rendering it unusable, if the process is performed incorrectly or incompatible files are used. Weigh these benefits and risks carefully before proceeding.

How to prepare your Android device for rooting

Before you begin, fully back up everything you can't live without, including your phone's current ROM. Make sure your device is fully charged. You must enable "Developer options" by going to Settings > About phone (or About tablet) and tapping the Build number seven times. A prompt for your security passcode will appear. Once Developer Options appear on the main Settings page, tap into them. Within "Developer options," enable "OEM unlocking" to allow the bootloader to be unlocked, and "USB debugging" for your device to communicate with a computer. Some devices, particularly Samsung and Xiaomi, may require an active internet connection, a SIM card, or a waiting period (e.g., 7 days for Samsung, 7-360+ hours for Xiaomi) after enabling OEM unlocking before the bootloader can be unlocked.

Android Phone
Photo from Wikimedia Commons

How to set up your computer with the right tools

Download and extract the Android SDK Platform Tools to your computer (Windows, PC, or Linux). For Windows users, extract the zipped files to a directory you will remember, such as C:android-sdk. To guarantee that your computer can properly communicate with your device, you will need the appropriate USB driver. Some devices install these drivers automatically when you connect your phone via USB cable. If not, go to the device's manufacturer's website and download the USB driver for your specific phone brand.

How to unlock your Android phone's bootloader

The bootloader loads the phone's OS and determines which applications run during startup. Unlocking it is required before rooting. Connect your device to your computer and open a command window. At the command prompt, type adb devices; you should see a device serial number displayed. Boot your device into bootloader mode by typing adb reboot bootloader. Unlock the bootloader by issuing fastboot oem unlock. You may receive a prompt on your device asking if you want to unlock the bootloader; use your volume buttons to navigate and the power button to confirm. To boot back into the system, type fastboot reboot. Warning: This step will delete all your data and factory reset the device. You can back up your data to a hard drive beforehand if you want to keep a copy. Some manufacturers (Motorola, HTC, Sony, LG) may require you to register for a developer account to obtain an unlock key. For Honor and Huawei devices, you are no longer allowed to unlock their bootloaders and may need a third-party service like DC-Unlocker.

How to root your Android phone with magisk

Magisk is the modern standard method for rooting. After unlocking the bootloader, download your device's official firmware. Extract the boot.img (or init_boot.img/recovery.img) from the firmware. Transfer this file to your phone and open the Magisk app. In the app, select "Install" and choose "Select and Patch a File," then navigate to the extracted boot.img. The app will patch it and create a file named magisk_patched.img. Transfer this patched file back to your computer. Reboot your phone into bootloader mode again. Flash the patched file using the Fastboot command: fastboot flash boot magisk_patched.img. Then reboot your device with fastboot reboot. Your phone will now have root access. CF-Auto-Root by Chainfire works on more than 300 devices and uses a root-windows.bat script. Framaroot is a one-click rooting app that requires downloading an APK and enabling Unknown Sources in Settings.

Special instructions for rooting Samsung devices

Samsung devices typically use a different method involving "Download Mode" and a tool called Odin (or Heimdall) instead of standard Fastboot commands for unlocking and flashing. Samsung phones do not use the fastboot oem unlock command; instead, you must enter Download Mode and use Odin to flash a modified boot image or custom recovery. Additionally, Samsung may enforce a 7-day waiting period after enabling OEM unlocking before the bootloader can be unlocked. Always verify your specific Samsung model's rooting instructions from reliable sources.

What to do after you have rooted your phone

Verify root access by opening the Magisk app; it should show "Installed" and "All" under the Superuser tab. Install a root management app if needed to control which apps have superuser permissions. After using Framaroot, you need to download and run SuperSU to manage root access. Remember that rooting increases your device's vulnerability to malware and may block banking apps from functioning. You will also lose the ability to receive official security updates, making it essential to stay informed on the best & latest updates on mobile operating systems [Android, iOS, KaiOS] to ensure your rooted device remains as secure as possible. Keep in mind that tasks like restarting and rebooting phones may behave differently after rooting, as custom recoveries and root-level processes can alter the standard reboot sequence.

Frequently Asked Questions

Can I unroot my phone after rooting it?

Yes, you can usually unroot by flashing the original stock firmware back to your device or by using the "Uninstall" option within the Magisk app. You can unroot anytime if you need to claim your warranty. Unrooting may restore warranty eligibility and allow banking apps to function again, though the bootloader may remain unlocked unless you relock it separately.

Will rooting delete my apps and data?

Unlocking the bootloader will factory reset your device and erase all data. However, the Magisk patching and flashing steps themselves do not delete additional data. Always perform a full backup before starting the rooting process.

Does rooting work on all Android versions?

Rooting methods vary by Android version and device. Always check compatibility for your specific device and Android version.

What is the difference between rooting and unlocking the bootloader?

Unlocking the bootloader allows you to flash custom software, including the patched boot image needed for root. Rooting is the process of gaining superuser access within the operating system itself. Unlocking the bootloader is a prerequisite for most rooting methods, but you can have an unlocked bootloader without having root access.

Can I still receive OTA updates after rooting?

No, official over-the-air (OTA) updates typically fail on rooted devices because they verify system integrity.

About the author

A tech writer who writes about gadgets I can't afford.

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