Install Official Hydrogen OS v1.4 on OnePlus 2 Marshmallow Update [Google Ready Guide]

On 7th April, Chinese OnePlus 2 got Official Hydrogen OS v1.4 Marshmallow update which is better than Oxygen OS 3.0 in many expects. If you want to install Hydrogen OS in your OnePlus 2 with Google Apps, then follow this Guide. I will only provide you to download everything from Official Links except the TWRP and SuperSu (if you want to root your device). So here we go to look some of the