Whether you like to swap your stock version of Android for a custom ROM like CyanogenMod, or you just like to be able to browse the Google Play Store without limitations as to what you can install, rooting the Android operating system is the way to go. By rooting Android, we are becoming the root user which is the most powerful position to be in. It is essentially becoming the “boss man” of the operating system, and you will not find anything that isn’t willing to be installed.
That might sound strange, but it is likely because you are not aware that Android does not come to you as pure as advertised. The untouched version of Android rolls out to the device manufacturer (in this case YU) and then phone carrier networks. Both the manufacturer and carrier networks can spin their unique version of the Android operating system. Part of the reason why so many people love Android is due to the fact hat it is open source, but it is that same openness that shoots itself in the foot and allows these corporations to fiddle with what we loved. You can turn back the clock and run the Android operating system without any of the footprints from the manufacturer and phone carrier networks if you want, but to do that you need to be the root user.
The reason people cannot uninstall what companies like YU and phone carrier networks install are because they are usually fitted to the system partition–hence the name “system apps”. They do this on purpose because they know you will not be able to get rid of them. Moreover, then they threaten you with voiding the warranty should you do what is required to remove them (root the device). While the warranty might become void, there are no legal issues with rooting the Android operating system and making yourself the boss. It just adds that extra element of risk since you are no longer under warranty. That is why everyone who roots the Android OS should be experienced Android users first and read up on all the things you need to know about rooting before you decide to get it done.
- The following guide is pieced together for the YU Yunique smartphone only. It requires a custom recovery to flash the SuperSU package, and that custom recovery image that is associated with this guide can only be installed on the YU Yunique. It probably bricks any other device.
- As mentioned, you need to install a custom recovery on the YU Yunique smartphone  before you can flash the SuperSU found in this guide that makes you the root user on the device.
BEFORE WE BEGIN
- You should take a full backup from the custom recovery image when you boot the device into the recovery mode. Since you have swapped the stock recovery partition for a custom version, you find the custom recovery now boots up when you press the same hardware button combination for the recovery modes you always did. Once within your custom recovery partition, there is a Backup button–that is the button you need to tap on when you want to take the NANDroid Backup.
HOW TO ROOT YU YUNIQUE RUNNING ON ANDROID 6.0.1 MARSHMALLOW
- Download the SuperSU root file  and have it on the desktop of the computer–and do not unzip the file yet.
- Connect the YU Yunique smartphone to the computer with the USB cable that you usually use to charge the battery and then copy the SuperSU zip file over to the internal storage SD card folder of the YU smartphone.
- Unplug the YU smartphone from the computer once you have it stored away on the SD card and then reboot the YU Yunique phone into recovery mode.
- Select the ‘Backup’ option from the main TWRP menu and take the NANDroid Backup by following the options on the display.
- Tap on the ‘Install’ option from the main Recovery menu and follow the on-screen guidelines to browse the SD card and install the SuperSU package that you transferred there just a few steps ago.
- Choose the ‘Reboot’ button followed by the ‘System” option and it restarts the system back into the normal mode.
In conclusion, that is how to root YU Yunique smartphones when they are running on the Android 6.0.1 Marshmallow software updates by flashing a version of Chainfire’s SuperSU. The version of SuperSU is always systemless for the Android 6.0.1 Marshmallow updates on this smartphone, and that means applying a hard reset results in it being unrooted.