The LTE fast mobile speed variant of the Samsung Galaxy S5 is finding a new OTA update coming as a system message to notification panels. The software update is Android 5.0 Lollipop with the build number KTU1BNL2. Well, so long as you’ve updated to that build already, you can use the steps below for unchaining the system internals away from the default factory restrictions. We know this process as root access.

Understand that this is the first Lollipop software and not the second version namely 5.0.01. Some devices are finding the 5.0.0 arriving OTA which brings in several adjustments including minor bug fixes. We are predicting the 5.0.2 to come with more features. That said, it surly isn’t long until Sammy and phone carrier network begin the roll out phase for the same on the Korean S5. If you want to wait for that version you should look away.

S5 Lollipop

You ought to read through some of the essentials before starting the guide. Here we are listing everything you should understand before deciding if it’s what you want such as the risks involved, what you need and what to avoid. You can start with the guide once you are happy with the essentials.

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.

Details of Note

  • We recommend backing up the data. Most Android smartphones have a default utility for backing up and restoring. The process in finding that varies for each device. In addition to it varying, it relies on your manually going back and making more backups. That’s why we suggest installing one of the fantastic backup apps available from the Google Play Store. Helium helps you sync the phone contacts, make copies of the existing market apps and SMS texts. Check out Titanium backup from the same Google Play store after unlocking the internal hardware.
  • Make sure you backup the EFS folder. The app here allows you to save EFS IMEI code. From there you can choose to restore EFS, backup partitions and more. You must do this after opening the device with root access.
  • Furthermore, if you are considering installing a custom ROM after finding root access, we suggest taking a Nandroid backup. Nandroid’s backup nearly everything on your ROM and data. It can even remember where you were up to in games and save that data too!
  • Feel free to back up the data and ROM any way you choose. There is no wrong answer, but there is several ways to back up. Follow your usual way if you don’t want to learn anything new.
  • Install Samsung Kies for the latest USB drivers and syncing the phone contacts. You can download the drivers from third-party links or the official Samsung website if you don’t want to install Kies.
  • Remember to disable Kies before opening the Odin application. They can interfere with each other.
  • Moreover, temporarily disable the security features installed on the smartphone and the computer. You’ll find them as existing applications on the Galaxy S5. Note: the phone doesn’t automatically start with antivirus. If you didn’t install it yourself, it won’t be there.
  • Make sure there is enough battery saved up on the phone so that it doesn’t turn off during the flashing. Remember most modern smartphones come with USB charging as a default feature. That means it charges the battery if it’s plugged into a desktop PC.
  • You may use a desktop computer, notebook or laptop so long as it’s running Windows as the operating system Choose from Windows XP, Windows 7 and Windows 8.
  • If the notebook or laptop isn’t plugged into the wall it doesn’t have direct power source and the USB charging feature may not be working. Make sure the notebook battery is charged enough to go with the phone.
  • You shouldn’t customize your mobile device unless you are an experienced Android user. Find a friend with experience if you don’t have any. Watch and learn from them so you can understand everything next time.
  • Allow the USB Debugging mode permissions from the Developer Options menu. You find the Developer Options directly from the Settings menu. Of course, you can’t find any menu without turning on the phone.

How to root KTU1BNL2 Android 5.0.0 Lollipop on the Samsung Galaxy S5 G900K LTE

  1. Download the Chainfire package here.
  2. Download the suitable Odin here.
  3. Have Odin running after installing the file.
    – leave it open on the desktop for when we come back to it in a minute.
  4. Boot the S5 up in Download Mode.
  5. Press the Volume Down + Power + Home keys at the same time to enter Download Mode.
  6. Connect the phone to the computer of your choice.
  7. Wait for the ID: COM port to change colors.
  8. Click the AP button and upload the flashable zip file.
  9. Don’t adjust any of the default settings such as f reset Time.
  10. Check the re-partition is off with the empty box.
  11. Click the start button from the Odin application when you ready.
  12. It takes some minutes for it to complete.
  13. Wait for the “pass’ message on the screen before disconnecting.

If you see the fail message and not the pass message you ought to download the latest USB drivers again. Try getting them from a new source. If you get stuck in a boot loop where the phone doesn’t load pas the Android logo, you must enter recovery mode. Clear the cache from the Settings. If you are still stuck it’s time to apply the factory reset. Remember: factory resets do wipe the data from the handset.