Regarding the 7 day-day wait... mentioned in millertime90's answer, that is bs..completely untrue. I've had mine for over 2 months, and never showed the oemOEM unlock.... I did hear though that one certain version allows it but the g960"U"G960U cannot... but as others say if there's a will there's a way, so hopefully by now someone knows how to get around it.... also doesn't help that I have no access to a computer.....
Would be great to be able to use "Net******" for wireless h******... Lol...
Oh and last thing...Also, that blue screen is called "Download Mode" its. It's used for when using Odin or other tools to reflash/flash imgsimages to your device.