Knowledge of Root your Android Devices.

What is Rooting?
If that's root is essentially if you root your Android device with root access, you can get around that's any restriction that your manufacturer or carrier many have applied. You can run more apps in your devices, You can customize your device, and you can potentially speed it up in a variety of way.

The process involves backing up your current software and then flashing a new custom ROM to modified version of Android) 

Why would you root your device?

One of the most obvious incentives to root your Android device is to rid yourself of the bloatware that’s impossible to uninstall. You will be able to set up wireless tethering, even if it has been disabled by default. You can also access your entire file system, install special apps that require a root, and flash custom ROMs, which can add extra features and streamline your phone or tablet’s performance. A lot of people are tempted by the ability to completely customize the look of their phones. You can also manually accept or deny app permissions.

You won’t find a lot of amazing must-have apps when you root, but there are enough to make it worthwhile. For example, some apps allow you to automatically backup all of your apps and all of their data, completely block advertisements, create secure tunnels to the Internet, overclock your processor, or make your device a wireless hotspot.

Top 10 Reasons to Root Your Android Phone: 
1. Truly Own Your Device
2. Flash a Custom ROM
3. Flash a Custom Kernel
4. Tweak the Dark Corners of Android
5. Remove Preinstalled Crapware
6. Back Up Your Phone for Seamless Transitions
7. Block Ads in Any App
8. Boost Your Phone's Speed and Battery Life
9. Automate Everything
10. Unlock Hidden Features and Install "Incompatible" Apps

Why wouldn’t you root?

There are essentially three potential cons to rooting your Android.

Voiding your warranty: Some manufacturers or carriers will use rooting as an excuse to void your warranty. It’s worth keeping in mind that you can always unroot. If you need to send the device back for repair, simply flash the original backup ROM you made and no one will ever know that it was rooted.

Security risks: Rooting may introduce some security risks. Depending on what services or apps you use on your device, rooting could create security vulnerability. For example, Google refuses to support the Google Wallet service for rooted devices.