Rooting gives you access to the Operating System - in this case, Google Android OS - so that you can make changes to it to suit your own purposes. If you are a fairly ordinary user, you will probably not feel the need for it, and it may lead to some difficulties for you, such as with system updates. It also has the disadvantage that, in most cases, it voids the device manufacturer's warranty. If you prefer to unroot the phone....read this guide about that by UJ95x:
http://forums.androidcentral.com/am...ng-reverting-back-stock-without-computer.html
If you need more help and advice, let us know.... there are many members here who would be pleased to do so.
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