There are always plenty of reasons to root your Samsung Galaxy J5 smartphone in general. The most favorite reason of all is to install more apps. While applications might make you think of games and another general idea, the root apps come with an enormous amount of power and they can do a great deal more to your device than you might first think.

One example of a great root application that we recommend you check out from the Google Play Store is the Screen Standby app. As the name suggests, using this app will make your screen stays off when it is meant to be turned off. Sometimes our Samsung Galaxy J5 smartphones can “wake up” when we were wanting them sleeping. The Screen Standby app can prevent that from happening. It’s also a big deal that we make that happen so we can save battery life and save the life of your hardware too. That means your short term battery life will be better as well as your long-term battery life should be better. Meaning you can expect your device’s battery to last a longer amount of hours over the lifespan of your device. That’s more important for smartphones that don’t have any option to replace the battery, but it’s important for everybody if you want to save money. Protecting the hardware is even more important because you don’t replace the hardware either. Once that hardware is done, you will likely prefer paying for a new smartphone than attempting to go to the great lengths of trouble to fix it.

Samsung Galaxy J5

The firmware that the rooting method in this guide for the Samsung Galaxy J5 smartphone is based on comes with the LMY47O.J5008ZMU1AOH2 build number. Chainfire gives us that build number to use as an indicator because some of the Samsung devices like potentially the Samsung Galaxy J5 will not boot the older images. It does not, however, mean that you need to be flashing that same firmware build ID on your Samsung Galaxy J5 smartphone before you use this guide

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.

Files You Need

  • Download the new CF-Auto-Root for the SM-J5008 smartphone running the Android 5.1 from here.
  • Download the Samsung USB Drivers for the computer you are using to root the J5 smartphone from here.
  • You must have a Windows computer to use this guide or else the flashing will not work.
  • Samsung firmware updates — otherwise known as just software updates to some — are rolling out for devices all the time. Sometimes the major updates that update a smartphone from builds like Android 5.0 to Android 5.1 can brin new bootloaders with them. A new bootloader will mean the CF-Auto-Root tool needs updating before it will start working again. To get the rooting file working again, people need to submit the new recovery images to the official CF-Auto-Root thread made by Chainfire from the XDA-Developers website. Once Chainfire gets the new recovery image files, he can then update the CF-Auto-Root file that is made for your device, and it will start working again.

Rooting the Samsung Galaxy J5 Duos SM-J5008 running the Android 5.1 Lollipop update

  1. Enable the USB Debugging Mode on the Galaxy J5 before you follow the rest of the guide so the device can be detected by the computer and its apps we are using.
  2. Extract the rooting package to the desktop of the computer and the rooting file and the Odin file should pop out onto the desktop of the computer for you.
  3. Install the Samsung USB Drivers on your Windows computer before you move to the next step.
  4. Double-click the Odin executable file so the flashing tool opens up and you have the user interface waiting for you to connect.
  5. Boot the Samsung Galaxy J5 SM-J5008 smartphone in download mode and then connect it to the computer with the USB cable.
  6. Wait until you can see the yellow or blue ID: COM port from the Odin user interface letting you know that your J5 smartphone is connected.
  7. Click the AP button and then browse the desktop location for the J5’s rooting file that you extract earlier.
  8. Do not change any of the default settings from the Odin user interface on the computer.
  9. Click the Start button.
  10. In a few seconds, check the display of your Samsung Galaxy J5 smartphone for when it says that it is installing the SuperSU package, cleaning up the cache and then flashing the stock recovery again on your device.
  11. Now look back at the display of the computer for the Odin user interface to give you a green pass message inside a box.

In conclusion, that’s all you need to root the Samsung Galaxy J5 SM-J5008 smartphone running the Android 5.1 Lollipop update by using the CF-Auto-Root tool. Your smartphone will now reboot, and it is ready to disconnect from the computer. You should find the SuperSU app is available on the device; head over to the Google Play Store to install the root checker app to make sure everything worked.

Anyone who does not have a rooted smartphone should try a reboot to recovery mode manually after the flashing completes or install a new version of the Odin flashing application.