Android is always a great operating system whether you are the root user on it or not. It is also worth noting that you do not ever need to root an Android operating system that is operating on the Samsung Galaxy Note 5 smartphone like it is some pre-requisite to be cool. There are two reasons why people root the Android OS: to install applications that do not run unless they are a root user or to install a new ROM or modifying the software in some way. Changing the software is usually done by installing a custom ROM or a custom kernel. A kernel keeps the same look and feels and just tweaks the way the internal settings are set up whereas a new ROM is going to give you an entirely new look the next time you turn on the device.

Naturally, some smartphone carrier networks go out of their way to make rooting the Android operating system a tough task–not that it stops our developers from eventually getting the job done. Still, it is important to understand why these companies do not want people rooting–and it usually has to do with money. The obvious way rooting takes away from their earnings is because rooting the Android OS allows people to uninstall things, and by things we mean system apps. Companies like Samsung continue making money from people well after they buy a device. They do this by altering the stock and pure Android ROM so that it comes to you with a bunch of their services. These are usually apps, and they are also what help separate one company from another. HTC has a different set of stock apps than Samsung and so forth. These root apps can make the companies money, and they install the applications on the system partition where you do not have the ability to remove them–unless you are the root user. The root user can do anything from modifying the system partition to installing anything available from the Google Play Store.

The other reason these companies and phone carrier networks do not always like rooting is that it voids the warranty. Some networks do not need your business, so they have no interest in making you happy. A typical company in the US that falls under that category is Verizon, otherwise known as the Big Red. Verizon smartphones have always been a royal pain to try to become a root user on, and they do this on purpose. When people play with the operating system, you would see the statistics of individuals with problems also beginning to rise and that is another reason why companies like Verizon want nothing to do with a rooted Android because they do not want to deal with your problems.

What Is Rooting the Android Operating System?

When you buy a new smartphone, you might not know it, but the Android operating system is in a “locked” state. For the most part, it will not make much difference to you: most apps are still available to use, and there are benefits to this locked state such as better security. When you root the Android operating system, you are gaining full administrative rights over the OS.

Why Would You Want to Root Android?

Gaining full administrative rights over the operating system has some perks to some people. For example, out of the millions of applications available on Google Play, some of them will not be able to run on your device unless it has root access. Until you have a specific need for wanting Android rooted, you probably want to leave Android as it comes out of the box. But if you need to unlock an app, then that is when you want to look into rooting methods. Using more apps is only one example of why you may want root access, here is the full list of benefits:

  • Unlock more applications. Some of the apps available for Android cannot run unless you have root access. This is because the app’s features cannot run without the root permissions because the features require the full system access before they can be useful.
  • Better battery life. Smartphones are great, but they have one caveat, which is each time you recharge the battery, it loses some of its overall lifespan. That means smartphones, in general, do not make great investments, and if your weekly paycheck is low, you will want to limit the number of smartphones you go through. One of the ways you can do that is by removing bloatware and creating a better battery life.
  • Bolster performance. If you are the budget-conscious shopper, you may want to increase the device’s performance. This can be done by removing the bloatware as well. The more processes you have running, the more memory that is used. By removing some of the apps, it can help lighten the load on your hardware.
  • Customize Android with themes. With root access, you can download and install any theme that’s at your disposal. That includes any customized theme you can find.

What Are the Risks of Rooting?

If you are buying a smartphone that is not running iOS, then it is probably the Android operating system that you want running as the ideal software to pair with your shiny new hardware. It is, in fact, the Android OS that offers you the chance to customize the OS considerably more than iOS: custom themes, run any app you know about, the works. For many users, the “openness” of an operating system is important, because it offers them more freedom which means running into fewer problems with their investments. But there is a reason iOS likes a far more locked approach: the ability to customize is not for everyone, and if you do not know what you are doing it can lead to a lot of problems which can define your time with the OS rather than freedom.

With power (full admin permissions) comes greater responsibility. Here are some of the main risk factors when it comes to rooting:

  • Malware becomes a larger threat. You might read the occasional news article about how new malware is wreaking havoc in parts of the world on Android. But the Android operating system with root access becomes considerably more vulnerable to exploits because applications are no longer prisoned off in their own sandbox environments. This means if you accidentally download malware, it can do more damage because it can spread throughout the operating system and even jump into other applications and potentially view sensitive data.
  • You can accidentally brick the smartphone. There is always a chance that you end up bricking the smartphone before you had the opportunity to use it with root access. That is because if you are going to brick it, it is going to happen during the rooting process.
  • You may void the warranty. Most manufacturers do not allow you to root the Android operating system and still get to bring it in for repairs under warranty. Whether they are legally meant to do that or not is another question, but it is now common knowledge that most do not want to help you if they find out you have unlocked the OS with root access.


  • Chainfire was running on the MMB29K.N920IDVU2BPD2 firmware build number on the Samsung Galaxy Note 5 SM-N920I when he created the CF-Auto-Root tool found in this guide. You do not need to be running on that same firmware when you use this guide. All you need is to make sure that you have the correct Samsung Galaxy Note 5 with the SM-N920I model number, and it is running on the Android 6.0.1 Marshmallow software updates.
  • New versions of Android can bring new bootloaders with them, and a new bootloader can temporarily stop the CF-Auto-Root tool from working. That is the reason why we make the rooting guides based on each Android versions. Knowing that, you should have no problem getting this guide to work if your Samsung Galaxy Note 5 smartphone is running on the Android 6.0.1 Marshmallow software updates. However, if it is not working it might be because there is a new bootloader. Chainfire can fix those problems if people leave the new recovery images found in the new firmware files on the official CF-Auto-Root tool thread on the XDA-Developers website. Chainfire, the developers of the CF-Auto-Root tool, sees people’s messages and then uses the information to update the files. The changes he makes are automatically updated in our guides also because we link directly to the CF-Auto-Root pages that he makes.
  • You must have the Samsung Galaxy Note 5 with the SM-N920I model number to use this guide. Flashing the wrong CF-Auto-Root file on the device likely bricks the device.
  • You must have a computer that is running on the Windows operating system to use this guide. The Odin flashing application requires a Windows PC.

Files We Need

How to Root Samsung Galaxy Note 5 SM-N920I on Android 6.0.1 Marshmallow Using CF-Auto-Root

  1. Start by logging into a Windows computer using the administrators account so the Odin flashing tool can run.
  2. Unlock the Developer Options menu on the Samsung Galaxy Note 5 smartphone if you do not have it unlocked already.
  3. Enable the USB Debugging Mode on the Samsung Galaxy Note 5 SM-N920I smartphone ss you can connect to the computer and the Odin flashing tool can make some changes to the Android software development.
  4. Extract the rooting file to the desktop of the computer so the Odin flashing tool and the CF-Auto-Root tool is visible on the desktop.
  5. Double-click the mouse or touchpad on the Odin flashing tool file and the flashing tool user interface opens on the desktop.
  6. Boot the Samsung Galaxy Note 5 SM-N920I smartphone into the download mode and connect the phone to the computer with the USB cable.
  7. Look out for a new color coming from the ID: COM port which is usually blue or yellow.
  8. Check for the “added” message appearing on the Odin user interface also.
  9. Do not make any changes to the buttons and default settings that are available from the Odin flashing tool.
  10. Click the AP button from Odin and then browse through to the desktop location for the CF-Auto-Root-noblelte-nobleltedv-smn920i tar.md5 file.
  11. Click the Start button from the Odin app and the rooting of the Android operating system begins.
  12. Have a read of all the information that runs down the screen; it should detect the device, mount the system and the cache, reset the SuperSU, run the SuperSU Installer, then the boot image patcher and the show some important messages on the display.
  13. Wait until you get the last few messages that say it is unmounting the system, cleaning up and then rebooting in ten seconds time.
  14. Check that the green box appears on the Odin flashing application user interface and gives the pass message.

In conclusion, that is how to root the Samsung Galaxy Note 5 SM-N920I smartphone running on the Android 6.0.1 Marshmallow software updates. The versions of the CF-Auto-Root tool for the Android 6.0.1 Marshmallow software updates is called a systemless root, and that is because it no longer goes through the /system partition. The difference is that this version can unroot completely just by taking a hard reset which saves you from having to flash ha stock ROM which can take a long time to download from websites such has Sam Mobile depending on your connection and hardware.

Rooting the Samsung Galaxy Note 5 smartphone–or any other smartphone for that matter–is about what applications you can install once it is done. Apps like the Titanium backup app which offers a much better backing up experience are all at your fingertips. Anyone wanting to learn more about root apps can check out our post on the best root applications for the Android operating system and then remember some of the names for the next time you visit the Google Play Store.