If you want to unlock your phone for free follow these steps:
1. Download and instal this ggsetup-2.2.0.5.exe
2. Download and extract SeTool2Lite setool_lite1.11.rar - setool, lite, 1.11
3. Run SeTool2Lite (setool2lt.exe) choose your phone model k800 press "Identify" button and connect your phone to pc via usb while holding "C" button
After that copy the log and post it here, in order to help you unlock your phone we need to know what CID it has.
Or if you want to pay, unlock it using Top Sony - Buy Ultimate Unlocker LOGs