If you don't have KG800 cable you can build a small adaptor to be able to unlock KG800 easy using Furious-Gold. Look the picture on top and do exactly same. You can find prepared cable when you can see some sticker 'RX', 'TX', 'GND', then simply connect on the usb female connector like you see on the picture. After this connect usb cable to your new adaptor and connect adaptor to your FuriousGold or on COM port.

Now choose your phone in list (here i try with LG KG800 'chocolate', select FTDI use, then press DOJOB. Software will ask you to power on phone. Then do it. Do a 2 sec pressing on the power button. When you see starting communication you can unpress it.

Your phone is now unlocked in exactly 26 seconds.

Here is the picture how must be connected the cable and adaptor you made.

This is picture before unlocking with Furious. 'Insérer carte SIM adéquate' means please insert correct sim card.

This is 26 seconds after using FuriousGold :)