Well, that didn't take long. When we took a look at ASUS' ZenFone 2 a couple of weeks ago, we found it to be a great phone for the money. It looks great, has a beefy processor, and has one feature too few smartphones do: an Intel SoC.
As good as the phone is out-of-the-box, we couldn't blame you if you wanted to go the route so many Android power users do and root the device and unlock its boot loader. Thanks to XDA Developers user ravian29, that's now possible.
In order to unlock the device, it needs to be updated to the latest firmware, which is 2.19.40. If for some reason that firmware is not available to your device, you will have to sit on the sidelines for the time being. You'll also need to root the device, and likewise have adb working and active on your PC. After a mere four lines of commands, the phone will be unlocked after a reboot.
There are two important things to note about this process, however. First is the fact that this should be performed by experienced users only, or at least users that don't mind voiding their warranty and potentially bricking their device. Second, as it stands right now, this process is completely irreversible. If that doesn't bother you, hit up the XDA Developers link below!