If you are interested to get the administrative privilages on your device, here comes the complete guide that helps you root Oppo N3 with TWRP Recovery along with unlocking the bootloader as well.
If you are facing any of the issues mentioned above, I’d suggest you to follow this post to Unroot Motorola Moto Maxx XT1225 and Install Stock ROM.
Getting issues with rooted Nexus 6?? Here comes a wonderful guide that helps you Unroot Motorola Google Nexus 6 with Stock ROM and Relock Bootloader.
In this tutorial, mentioned the complete steps that will help you to install Android Lollipop based CM 12 ROM on HTC Desire S, follow the steps and get the task done in minutes.