unlocking a cracked phone through the computer?
Once the adb files are on your pc, all you have to do is run the command to list adb devices. If no results show up, your device does not have usb debugging enabled. If you get a result, an 8 digit number.. that means you have it enabled and the phone is connected. There is a way to enable usb debugging via command line but then, that is even nore technical. Save yourself the headache and unlock your phone with a usb mouse.