As the release of Samsung’s latest flagship device, the S21 Ultra, approaches, millions of users around the world are asking themselves the same question – can you root it?

At its core, rooting is the process of gaining administrative control over your device, allowing users to access and modify the core system functions. While root access has been at the center of controversy since the dawn of smartphone customization, this has only spurred on tech-savvy users who are on the lookout for the latest rooting hacks to unlock greater potential from their devices.

The Pros and Cons of Rooting the S21 Ultra

The question of whether or not you can root your S21 Ultra is still rather ambiguous. As powerful as the device is, rooting it can still provide a number of opportunities. By unlocking root access, you can access the device’s root directory, enabling you to install apps and modifications that wouldn’t be available through regular means. This includes the ability to change the customization options, create unique themes and customize the interface, and even optimize system performance.

But root access isn’t without its risks. By rooting your device, you also lose some of its default security features, making your device more vulnerable to malware and other malicious developments that could damage the system. Additionally, depending on where you live, rooting a smartphone is sometimes considered a violation of the terms of use and can render your device unreturnable.

A Risk Worth Taking?

Whether or not you should root your S21 Ultra is a personal decision and one that isn’t to be taken lightly. You must weigh up the potential risks against the potential rewards and decide if you’re willing to take them.

That said, rooting your device is likely to come with some pretty impressive benefits. Being able to access the root directory gives you considerable control and freedom over your device, allowing you to tailor everything to your needs. Plus, since rooting your phone will void its warranty, you won’t have to worry about keeping track of its performance and hardware should anything go wrong during the process.

S21 Ultra Pre-Requirements

  1. Disable all security locks on your device.
  2. A PC or laptop is needed to execute commands.
  3. Ensure the phone battery is at least 60% charged.
  4. Use an original Samsung cable.
  5. Create a full backup of your device.
  6. Update your device to the latest Android version.

Important: This guide is specifically for Samsung Galaxy S21 series devices with Exynos processors (e.g., S901B, S906B, S908B).

Note: Follow the steps in this guide carefully to avoid permanent damage or bricking your device.

Root S21 Ultra

Step 1: Unlock Bootloader on Your Galaxy S21

Follow these 3 simple steps to unlock the bootloader of your device:

  1. Enable Developer Options:
    • Go to “Settings ➡️ About Phone ➡️ Software information”
    • Tap “Build Number” 7-8 times to enable “Developer Options”
  2. Enable OEM Unlocking:
    • Go to “Settings ➡️ Developer Options ➡️ TURN ON the OEM Unlocking Option”
    • Press “Enable” when prompted to confirm
  3. Unlock Bootloader:
    • Power off your device
    • Hold the Volume Down + Volume Up keys together while connecting your device to the PC until you see the bootloader screen
    • Long press the Volume Up key to enter “Device Unlock Mode”
    • To confirm bootloader unlocking, press the Volume Up key again
    • Congratulations! Your bootloader is now unlocked


Download the required files during the process. Links will be updated to reflect the most recent developer build:

Step 2: Preparing Patched Boot Image File

  1. Download the latest firmware for your device from the link above
  2. Extract the firmware; you will see 5 files in .tar.md5 format
  3. Extract the AP FIRMWARE file with 7-Zip ZS
  4. After extracting the AP FIRMWARE file, you will see files in .lz4 format
  5. Copy boot.img.lz4 and vbmeta.img.lz4 to the LZ4 installed folder
  6. Follow the steps below to convert .img.lz4 to .img:
    • Open the LZ4 folder
    • Drag boot.img.lz4 and vbmeta.img.lz4 to the lz4.exe program
    • Both files will be converted to .img format
  7. Connect your device to the PC and copy the “AP” file from the firmware folder to your phone’s internal storage
  8. In the next step, we will patch the “AP” file

Step 3: Patch the AP Firmware File with Magisk App

  1. Install and open the Magisk App on your device
  2. Click on “INSTALL”
  3. Tap on “Select and Patch a File”
  4. Select the AP firmware file and tap on “LET’S GO”
  5. Magisk will now start patching the AP firmware file
  6. Find the magisk_patched.tar file in the “Downloads” folder
  7. Connect your device to the PC and transfer the magisk_patched.tar file to the “firmware folder” on your PC
  8. Extract the magisk_patched.tar file
  9. Copy the vbmeta.img to the Magisk patched folder
  10. Select boot.img and vbmeta.img file, right-click on the files, and “Add to archive”
  11. Select the archive format to tar and click on OK
  12. You will now see the boot.tar file, which is an Odin flashable file. Proceed to the next step

Step 4: Flash Patched boot.tar Using Odin Flash Tool

  1. Power off your Galaxy S21 and boot it into Download Mode
  2. While holding the Volume Down + Volume Up keys together, connect your device to your PC
  3. Press the Volume Up key to enter Download Mode
  4. Open the Odin3 xxx.exe file and ensure that your device is connected
  5. Check for ID:COM, indicating your device is connected to your PC. If not showing, install the Samsung Galaxy S21 drivers
  6. Select the appropriate firmware files by clicking on

It All Comes Down to Balance

In conclusion, the decision whether or not to root your S21 Ultra especially lies in the individual’s hands. While rooting your device certainly has its risks, the potential rewards are hard to ignore. It’s all about striking the right balance between the two and assessing your own personal needs and limitations in order to make an educated choice.


Q: Can you root S21 Ultra?

A: Yes, you can root S21 Ultra by using a third-party rooting tool like Magisk.

Q: Are there any risks associated with rooting S21 Ultra?

A: Yes, rooting any device can have risks like voiding the warranty, damaging the device, etc.

Q: Is it necessary to root S21 Ultra?

A: No, it is not necessary to root S21 Ultra. It is up to the user if they want to root the device or not.

Q: Are there any prerequisites for rooting S21 Ultra?

A: Yes, there are some prerequisites for rooting Samsung Galaxy S21 Ultra. The device must be unlocked and have an unlocked bootloader, as well as having TWRP installed. Additionally, the user must have a computer with the Android SDK installed and have access to the appropriate root files.

Q: Can I install custom ROMs on S21 Ultra after rooting it?

A: Yes, you can install custom ROMs on the Samsung Galaxy S21 Ultra after rooting it. However, it is important to note that rooting your device may void its warranty, so it is recommended to proceed with caution. Additionally, custom ROMs may not be fully compatible with your device, leading to potential instability or performance issues, so it is important to research the ROM you are planning to install beforehand.

Q: What is the recommended method for rooting S21 Ultra?

A: The recommended method for rooting the Samsung Galaxy S21 Ultra is to use a custom recovery, such as TWRP, and then flash SuperSU or Magisk. This method requires an unlocked bootloader, so you will also need to unlock it before you can proceed.

Q: Can you root a Samsung Galaxy S21 Ultra without a computer?

A: No, you cannot root a Samsung Galaxy S21 Ultra without a computer. Rooting a device typically requires the use of a computer, laptop, or other device. Desktop software known as ‘flashing’ is used to gain access to the device’s root directory, bypassing built-in security measures. This requires the user to connect their device to the computer in order to complete the process.