There are many settings that can be tweaked in an 
Android device; however, these tweaks are restricted to what the 
manufacturer permits. Rooting an Android device or gaining root access 
allows tweaking the device at a very deep level. But, is it OK to root 
your Android? Lets checkout the good and the bad.
Having
 the freedom to tweak your OS has been and will always be of great 
importance for any open source geek. With Google backing the porting of 
Linux-based operating systems to handheld and portable devices, this 
freedom has increased manifold. Companies building up mobile phones and 
handheld devices have had to give in to Android’s growing popularity as 
it’s competing head-to-head for space with other popular mobile 
operating systems such as the iOS, Blackberry OS and other proprietary 
operating systems. A number of tweaks and functionalities have been 
added to the most recent version, Android KitKat, which was released at 
the end of October 2013. However, a number of users continue to be on 
earlier Android versions such as Jelly Bean (on devices with low 
hardware configurations).
As
 with other open source desktop operating systems, it is possible for 
Android users to tweak or change any part of the system within the 
limitations set by the open source community and by the licences. 
Although there are several apps available on the famous Google Play 
store, Android primarily doesn’t allow its users to make any changes to 
the system. This can, however, be achieved by using a method commonly 
referred to as the rooting of an Android device. A device that has 
undergone this procedure is referred to as a rooted phone or tablet. The
 name is derived from the term ‘root access’, which is actually the 
ability to attain permissions only restricted to super-users or 
administrators. Rooting allows you to perform a number of operations 
that would have been otherwise impossible because of the limitations set
 by the carriers or phone manufacturers.
Although rooting your device might sound like a great idea, there are several disadvantages that negate its advantages. Before I go ahead with the procedure for rooting an Android device, let us look at the factors that will affect your decision on rooting.
What you might lose?
Bricking your phone
When
 you’re tampering with your phone’s operating system, you should be 
aware that one wrong move could damage the device’s software, turning 
the phone into a useless brick. So if you are wary of taking risks, 
please refrain from trying this procedure. Although the risk is minimal,
 rooting your device is still quite a risky business. So, you need to be
 absolutely sure of what you do.
Manufacturer’s warranty
The
 process of rooting in almost all cases challenges several clauses in 
the agreement with the hardware manufacturer and results in the warranty
 becoming invalid.
Legality
Rooting
 a phone is allowed legally almost everywhere in the world. In fact, in 
some European countries, replacing the original operating system with 
another does not void the statutory warranty that covers the hardware of
 the device.
Security concerns
Rooting
 essentially allows applications to perform actions that require 
administrative privileges. The real reason for disallowing all 
applications from obtaining these privileges is to ensure air-tight 
security in this amazing operating system. Although Android has not been
 plagued by viruses, Trojans, spyware, malware and other members of the 
digital disease-causing pathogens, it is only a matter of time before 
anti-social elements try to exploit the innocent. Rooting your device is
 like giving ammunition to these elements on a silver platter.
What do you gain?
Despite these drawbacks, a number of users continue to root their phones or tabs. The gains are listed below.
Delete those pesky apps
Did
 your manufacturer bundle your phone with promotional applications and 
games that cannot be deleted? Geeks refer to these apps as bloatware, as
 they usually take too much space on the device’s memory. So, it is 
always advisable to remove all that you are never likely to use. 
However, you have to be especially careful not to delete any system app 
that can affect the basic functionality of your device. What you can 
safely remove are games and apps that have the manufacturer’s brand 
name.
Take essential back-ups
Rooting
 your device takes the performance of system and data back-ups to a 
completely new level. In addition to backing up user data, you can also 
back up applications and settings. Also, rooting allows you to take 
Nandroid back-ups, which is essentially a back-up of the complete 
operating system. The name Nandroid is a portmanteau of NAND, which is 
the widely used Flash memory on these devices, and Android.
Apps galore!
If
 you think that 1,000,000 (a million) apps and 50,000,000 downloads 
would be enough for open source enthusiasts, you are sorely mistaken. In
 addition to Google Play, there are several app distributors and stores 
available online. The most famous among these is F-Droid, an alternative
 software repository comprising only free, open source software. A quick
 search would reveal that most of the apps available on these stores 
require super-user permissions.
Playing dress-up
Almost
 every hardware manufacturer bundles Android devices with tones, themes 
and skins that are specific to their organisation. However, you are not 
allowed customisation beyond a certain level. By rooting the device, not
 only can you change the way your system sounds or looks, you can also 
use the customisation options provided by other companies.
Staying up-to-date
As
 manufacturers come up with newer devices, it is customary for them to 
stop providing updates for the older ones. Also, there are several 
devices that possess the hardware specifications to run newer versions 
of the Android operating system but are stuck without any updates 
because of the business gimmicks of these manufacturers. Rooting allows 
you to install not only the new features but a tweaked kernel or a new 
operating system altogether.
Custom ROMs
Almost
 all phone and tablet manufacturers modify the Android operating system 
and bundle the device with a custom made OS with their own branding. The
 basic Android version specific to a device is known as a stock ROM. 
Most stock ROMs are also bundled with useful software, specific to the 
device’s manufacturer. Custom ROMs are modified versions of the Android 
operating system, created for a specific device by a third-party 
developer. Several developers have taken great pains to make it possible
 for users with low-end phones to enjoy the benefits of the latest 
developments in the Android world. Several companies such as Cyanogenmod
 sprang up to cater to people facing such limitations with their own 
fork of the Android operating system. Although rooting is strictly not 
essential in order to install a stock or custom ROM, it provides you the
 ability to take customisation and personalisation to a whole new level.
Automation
With
 automation touching every aspect of life, it would be natural to also 
want our phones to think and act as per our wishes. There are several 
apps available on Google Play and other app stores that allow you to 
automate devices. One of the best applications for this is Tasker, which
 helps you create tasks for greater automation. With such apps, you can 
have your phone switch from data to Wi-Fi, based on location. You can 
combine task killer apps and ensure that your tablet consumes the least 
possible battery, especially when you’re not using it. Rooting lifts the
 software restrictions and renders anything that’s within the 
limitations of the hardware possible.
The preparations
Before
 you actually go ahead with rooting your device, there are several steps
 to be followed. The most important is to ensure that you install the 
latest drivers for your device on the computer to be used in this 
process. You must also download and install the latest Android SDK from 
the https://developer.android.com/sdk/index.html website. In addition, 
you need to put your phone into the USB debugging mode. To do so, enter 
the Developer Options in the system settings. You will be required to 
enable Developer Options and then enable USB debugging. A USB cable will
 also be required.
The real deal
I
 recommend you take a back-up of all your personal information on the 
memory card or a computer before you move forward with the actual 
rooting procedure. The process for rooting a phone or tablet varies 
greatly, depending on the device and the operating system of the 
computer used in the process.
There are several third-party applications, especially for the Windows, Mac and Linux operating systems, which allow you to connect the device and root without much intervention. Some of the popular applications for this process are Once Click Root, CF-Auto-Root and Super One Click. Most of these applications provide step-by-step instructions (sometimes with images) on how to root your device. Based on your device, the process will require you to press several buttons and reboot. As the steps vary from device to device, you need to search the Internet to find the best application-one that has had the most success with your device. Almost all these applications install the Superuser app that helps in granting super-user permissions or root access to other apps. There are also several ways to root a device using terminal commands from a Linux distribution. However, this procedure is only for experts. To verify if you have gained root access of your device, you can use apps such as Root Checker by joeykrim and Check Root by Avarna Software.
There are several third-party applications, especially for the Windows, Mac and Linux operating systems, which allow you to connect the device and root without much intervention. Some of the popular applications for this process are Once Click Root, CF-Auto-Root and Super One Click. Most of these applications provide step-by-step instructions (sometimes with images) on how to root your device. Based on your device, the process will require you to press several buttons and reboot. As the steps vary from device to device, you need to search the Internet to find the best application-one that has had the most success with your device. Almost all these applications install the Superuser app that helps in granting super-user permissions or root access to other apps. There are also several ways to root a device using terminal commands from a Linux distribution. However, this procedure is only for experts. To verify if you have gained root access of your device, you can use apps such as Root Checker by joeykrim and Check Root by Avarna Software.
What happens next?
Once
 the rooting procedure is complete, you will see an app named Superuser,
 SuperSU or something similar among other installed apps on your device.
 Open the Superuser app and update it to obtain the latest version.
Superuser and SuperSU
As
 and when another app requests for super user permissions, the SuperSU 
app gives you a pop-up to ask whether or not you want to grant such 
access. Based on the option you choose, you can have SuperSU prompt you 
at a later time or not prompt you for access till the app is updated. 
Ensure that you provide root access only to trusted apps and revoke 
permissions for those you are unsure of. In addition, it is a good 
practice to have an app ask for permissions every time. This allows you 
to keep track of the apps yourself, in addition to the logs maintained 
by SuperSU. Superuser, SuperSU and other similar apps also allow you to 
unlock additional paid features and improve the functionality further. 
However, for a basic user, the free features would suffice.
Busybox
Called
 the Swiss army knife of embedded Linux operating systems, Busybox is 
actually a stripped down version of powerful Linux tools made available 
for the Android operating system. You can visit http://www.busybox.net/ 
for more information on this project. If you’re into tweaking the device
 even further, you will need to make use of the several tools provided 
in this bundle. Some custom ROMs provide Busybox just as they do with 
SuperSU or Superuser. If not, there are several Busybox installers 
available on the Google Play app store, the most popular one being the 
BusyBox app by Stephen (Stericson). Most of the commands are the same as
 their counterparts on other operating systems.
SQLite
If
 you’re into heavy duty tinkering, you will require specialised tools. 
SQLite is a relational database management system that is used by 
several apps running on Android. There are several apps available on the
 Google Play store and on F-Droid that allow you to install the SQLite3 
binary application on your device. Once this is installed, you can use 
database viewers and editors as per your convenience. I would like to 
recommend the ‘SQLite Installer for Root’ app by Ptsoft in case you plan
 to use a stable and secure installer.
The terminal
People
 with knowledge of the Linux command line will feel right at home in the
 terminal emulators available for Android. The Google Play app store 
showcases several terminal emulator apps that allow you to run shell 
level commands in Android. Some of the best terminal emulators are 
available on F-Droid, an open source repository of Android apps. 
Terminal emulators are also useful for running Busybox commands.
File explorers
Several
 file explorers, such as Root Explorer, allow users to view and edit 
Android system files if you grant them super-user permissions. You can 
also change file and folder permissions with the help of such 
applications. Most of these apps also allow you to connect to cloud 
storage and seamlessly work with archives and other such files.
Bye bye bloatware!
As
 discussed before, rooting allows you to remove the bloatware provided 
by your hardware manufacturer that you couldn’t get rid of previously. 
Apps such as Root App Delete are available on the Google Play store and 
help you free up space. However, you are advised not to remove or 
disable system apps as they may hamper the functionality of your device.
 Similar to bloatware, unwanted ads is another problem that most people 
face. To block ads, these apps require root access to write into the 
hosts’ folder in the Android system.
In 
addition to the above mentioned entities, there are many more avenues to
 be explored. Rooting, if done responsibly, opens new doors and adds 
tons of functionality to your devices



















