How to Root Samsung S21 Ultra using Odin and Heimdall

The Samsung S21 Ultra is a great phone with many features worth the $1,199 price tag, but what if you could unlock all of those features for free? All without risking bricking your phone. The answer to this question is rooting. Rooting allows you to access files and settings on your otherwise inaccessible device because they’re locked by default. It also gives you much more control over how your phone operates, which makes it easier to customize the experience and fix malfunctions in some cases. There are two ways to root an S21 Ultra: using Odin or Heimdall. Both methods have their pros and cons, which I will now detail below.

What is root access?

Root access or “rooting” is the ability to perform actions reserved for system administrators and privileged users. You will need root access/rooting if you want to:

  • Add and remove user accounts.
  • Install apps that require root permission (e.g., Greenify, AdAway).
  • Manage system files.
  • Overclock the CPU of your phone to make it run faster.
  • Unlock more access on your Android phone.
  • Change settings that are not available in the stock firmware of your phone.

Pros & Cons of Rooting

Pros of Rooting S21 Ultra

Rooting provides a way for you to access files and settings on your phone that are otherwise inaccessible because they are locked by default. It also gives you much more control over how your phone operates, which makes it easier to customize the experience and fix malfunctions in some cases. Pros of Rooting

  1. Allows you to change system settings that may be unavailable in the stock firmware of your device.
  2. Increases performance by overclocking the CPU if desired.
  3. It gives you full access to all the data stored on your phone or tablet, not just what an app or service has given you access to.

Cons of Rooting S21 Ultra

  1. It may void the warranty of your device.
  2. It may make it difficult to perform a system update in the future without a relapse into the non-rooted state, requiring a complete wipe and reinstallation of your operating system.
  3. It may lead to unintended side effects that could harm your phone or tablet.”

How to Root Samsung S21 Ultra using Odin and Heimdall

One of the most popular methods for rooting Samsung S21 Ultra devices is by using Odin. This process will involve using Odin to download files, including an official Odin boot image, the root script, disable auto-update script, and some instructions on entering your phone into download mode. The instructions are straightforward to follow, and you should be able to have your device rooted in under five minutes if done correctly. The other option is Heimdall which allows for a more automated way of rooting your device. A complete list of instructions can be found here about rooting with Heimdall. Heimdall is a cross-platform open-source tool suite used for flashing firmware and ROMs onto devices. It also can root many devices with a single click. Whichever rooting method you choose, it is always essential to make a backup of your device before beginning if anything goes wrong and bricking does occur.

Pre-requisites

  1. Download Samsung USB Drivers
  2. USB Cable to connect your phone to computer
  3. Internet Connection and a Computer to download Odin/Heimdall

How to Root Samsung S21 Ultra using Odin

Step 1: Download the following files at this link. Odin, root script, disable auto-update script, and instructions. Step 2: Extract the three files to your desktop Step 3: Double-click on the Odin executable file to start up Odin Step 4: Put your phone in download mode by turning off your phone > press and hold Volume Down + Home Key, then press Power until you see a blue screen with an icon that looks like an Android with an orange triangle (this will take about 10 seconds) > let go of all keys when you see this icon Step 5: Plug in your device to the computer via USB cable > wait for ‘Added!’ message or code in Odin’s message box > click PDA button and choose the root script you extracted earlier Step 6: Make sure “Auto Reboot” and “F. Reset Time” are checked in Odin and click start Step 7: Your phone should reboot after the root script installs, and you will find SuperSU in your apps drawer. You can also confirm that su was installed correctly by going to your phone’s settings page and looking for SuperSU. It should be listed there along with a disclaimer about being a Superuser.

How to Root Samsung S21 Ultra using Heimdall

Step 1: Download the following files at this link. Heimdall, root script, disable auto-update script, and instructions. Step 2: Extract the three files to your desktop Step 3: Double-click on the Heimdall-flash executable file to start up Heimdall Step 4: Put your phone in download mode by turning off your phone > press and hold Volume Down + Home Key, then press Power until you see a blue screen with an icon that looks like an Android with an orange triangle (this will take about 10 seconds) > let go of all keys when you see this icon. Step 5: Plug your device into the computer via USB cable > wait for the ‘Added!’ message or code in Heimdall’s message box. Step 6: Click the “Root” button in the main window and wait for the rooting process to finish. Step 7: Your phone should reboot after the root script installs, and you will find SuperSU in your apps drawer. You can also confirm that su was installed correctly by going to your phone’s settings page and looking for SuperSU. It should be listed there along with a disclaimer about being a Superuser.

Which method should you choose?

There are pros and cons to each rooting method. Odin is a more manual process, but it is also very easy to follow the instructions. Heimdall is a more automated process, but the instructions can be a little more complicated. Both methods have a high success rate, but rooting your device will void your warranty. So, make sure you are comfortable with the risks before you begin.

Wrapping up

Rooting your phone will void the warranty and can lead to a bricking, but it also provides you with greater control over your device. You’ll be able to customize how apps behave or modify system files that might not otherwise be accessible. If you’re looking for a way to take more control of your device’s capabilities, rooting is an excellent option as long as you use one of our methods – Odin or Heimdall – and follow instructions carefully. It’s important that before beginning any process like this, make sure you have backed up all data on the phone just in case anything goes wrong! If you face any issues, let me know in the comments section.

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